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01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Quantifying human mobility resilience to extreme events using geo-located social media data

Mobility is one of the fundamental requirements of human life with significant societal impacts including productivity, economy, social wellbeing, adaptation to a changing climate, and so on. Although human movements follow specific patterns …

Autoren:
Kamol Chandra Roy, Manuel Cebrian, Samiul Hasan

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A WSN positioning algorithm based on 3D discrete chaotic mapping

Wireless sensor networks are featured by restricted network resources, which is quite possible to result in low positioning precision and serious time delay in positioning, accordingly, the overall network positioning quality may be reduced; to …

Autoren:
Tu Li, Wang Yan, Li Ping, Peng Fang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Synthetical application of multi-feature map detection and multi-branch convolution

Two methods for improving the detection performance of neural networks are introduced in this paper, multi-feature map detection and multi-branch convolution structure. The former is to analyze the features of each convolution layer in the network …

Autoren:
Jin Chen, Rong Liu, Ying Tong, Hanling Wu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Spatial analysis of traffic accidents based on WaveCluster and vehicle communication system data

The frequent occurrence of traffic accidents has always been an important problem troubling traffic safety management, so exploring the law and characteristics of case occurrence in a space area has profound significance for the prevention of …

Autoren:
Junhui Zhang, Tuo Shi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Two variable higher-order central Fubini polynomials

Recently, the central Fubini polynomials were introduced in connection with central factorial numbers of the second kind. In this paper, we consider two variable higher-order central Fubini polynomials as a ‘central analogue’ of two variable …

Autoren:
Taekyun Kim, Dae San Kim, Gwan-Woo Jang, Dojin Kim

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Strictly contractive Peaceman–Rachford splitting method to recover the corrupted low rank matrix

The strictly contractive Peaceman–Rachford splitting method (SC-PRSM) attracts much attention on solving the separable convex programming. In this paper, the SC-PRSM is first applied to recover the corrupted low rank matrix, which extends the …

Autoren:
Zheng-Fen Jin, Zhongping Wan, Zhiyong Zhang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Split proximal linearized algorithm and convergence theorems for the split DC program

In this paper, we study the split DC program by using the split proximal linearized algorithm. Further, linear convergence theorem for the proposed algorithm is established under suitable conditions. As applications, we first study the DC program …

Autoren:
Chih-Sheng Chuang, Chi-Ming Chen

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Jungck type fixed point results for weakly compatible mappings in a rectangular soft metric space

The main objectives of the current study are to explore and to express the proof of some common fixed point theorems by using commuting maps in rectangular soft metric spaces. We obtain some common fixed point results by utilization of rectangular …

Autoren:
Simge Öztunç, Sedat Aslan

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A Schrödinger-type algorithm for solving the Schrödinger equations via Phragmén–Lindelöf inequalities

In this article, we consider the numerical method for solving the Schrödinger equations via Phragmén–Lindelöf inequalities under the order induced by a symmetric cone with the function involved being monotone. Based on the Phragmén–Lindelöf …

Autor:
Lingling Zhao

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Anchor-based routing protocol with dynamic clustering for Internet of Things WSNs

Wireless sensor networks (WSNs) have many applications in climate monitoring, fire detection, smart homes, and smart cities, as well as detecting and monitoring dynamic, spatio-temporal events such as storms, traffic, and animal movement. WSNs are …

Autoren:
Catalina Aranzazu-Suescun, Mihaela Cardei

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Bi-level route guidance method for large-scale urban road networks

This paper proposes a bi-level route guidance method based on macroscopic fundamental diagram (MFD) for urban road network, which is a combination of central route guidance and distributed route guidance and it considers the intentions of both …

Autoren:
Dan Wei, Zhaosheng Yang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On Lyapunov-type inequalities for odd order boundary value problems

In this article, we construct new Lyapunov-type inequalities for odd order boundary value problems. The aim of this article is to find the maximum of Green’s function | G 2 n + 1 ( x , s ) | $\vert G_{2n+1} ( x,s ) \vert $ corresponding to …

Autoren:
Mustafa Fahri Aktaş, Devrim Çakmak, Abdullah Ahmetoğlu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Strong laws of large numbers for general random variables in sublinear expectation spaces

In this paper, we obtain the equivalent relations between Kolmogorov maximal inequality and Hájek–Rényi maximal inequality both in moment and capacity types in sublinear expectation spaces. Based on these, we establish several strong laws of large …

Autoren:
Weihuan Huang, Panyu Wu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Parameterized discrete Hilbert-type inequalities with intermediate variables

By means of the weight coefficients and the idea of introducing parameters, a discrete Hilbert-type inequality with the general homogeneous kernel and the intermediate variables is given. The equivalent form is obtained. The equivalent statements …

Autoren:
Ricai Luo, Bicheng Yang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Detection of an unknown radio transmitter using an enhanced K-nearest neighbor algorithm based on virtual reference point and RSSD information

Accurate detection of the unknown radio transmitter (URT) is crucial to combat illegal occupation of radio signal resources and protect communication system from harmful signal interference. The fingerprint positioning technique based on received …

Autoren:
Liyang Zhang, Taihang Du, Chundong Jiang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Obstacle avoidance of mobile robots using modified artificial potential field algorithm

In recent years, topics related to robotics have become one of the researching fields. In the meantime, intelligent mobile robots have great acceptance, but the control and navigation of these devices are very difficult, and the lack of dealing …

Autoren:
Seyyed Mohammad Hosseini Rostami, Arun Kumar Sangaiah, Jin Wang, Xiaozhu Liu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On the performance of receiver strategies for cooperative relaying cellular networks with NOMA

In this paper, a receiver scheme for a cooperative multi-relay system with non-orthogonal multiple access (CMRS-NOMA) in cellular networks is proposed. In our proposed system, the base station (BS) would like to communicate with multiple users via …

Autoren:
Jinjuan Ju, Guoan Zhang, Qiang Sun, Li Jin, Wei Duan

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Fast design of multiband fractal antennas through a system-by-design approach for NB-IoT applications

The efficient design of compact antennas operating over multiple bands suitable for the Internet of Things (IoT) is addressed by means of an instance of the system-by-design (SbD) paradigm. More specifically, an iterative strategy that combines …

Autoren:
Marco Salucci, Nicola Anselmi, Sotirios Goudos, Andrea Massa

01.12.2019 | Original Article | Ausgabe 1/2019

Character level embedding with deep convolutional neural network for text normalization of unstructured data for Twitter sentiment analysis

On social media platforms such as Twitter and Facebook, people express their views, arguments, and emotions of many events in daily life. Twitter is an international microblogging service featuring short messages called “tweets” from different …

Autoren:
Monika Arora, Vineet Kansal

01.12.2019 | Technical Paper | Ausgabe 1/2019

Micropile group behaviour subjected to lateral loading

Micropiles are suitable for underpinning and seismic retrofitting of structures. It is specially suitable for low head room area and can easily access congested areas where it is difficult to construct conventional piles. Its two basic functions …

Autoren:
Zakir Hussain, Binu Sharma, Takiur Rahman

01.12.2019 | Technical Paper | Ausgabe 1/2019

Development of full-scale laboratory accelerated pavement testing facility: a step toward performance assessment of geosynthetics reinforced pavement

The road network in India is growing at an exponential rate. The biggest challenge in this scenario is an availability of good-quality pavement materials at a reasonable rate. The demands of these pavement materials are increasing at an …

Autoren:
G. S. Ingle, S. S. Bhosale

01.12.2019 | Technical Paper | Ausgabe 1/2019

A dynamic correction for the seismic analysis of structures

International seismic building codes of practice specify a simplified method based on the first mode for the seismic analysis of regular structures and dynamic analysis for irregular structures. The number of modes to be used in the dynamic …

Autoren:
M. Dhileep, P. D. Arumairaj, G. Hemalatha

01.12.2019 | Original Article | Ausgabe 1/2019

Detecting intrinsic communities in evolving networks

Community finding in large networks (or graphs) helps in understanding natural collaboration within a set of members in the network. An intrinsic community is a form of organization where a subset of members is highly connected with each other …

Autoren:
Keshab Nath, Swarup Roy

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Improving MIMO relay compressed sensing-based channel estimation and pilot allocation

Increasing the data rate of communication systems together with the performance are main goals of the communication networks in the future. Multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) relay networks as a …

Autoren:
Abbas Akbarpour-Kasgari, Mehrdad Ardebilipour

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Improvements of bounds for the Sándor–Yang means

In the article, we provide new bounds for two Sándor–Yang means in terms of the arithmetic and contraharmonic means. Our results are the improvements of the previously known results.

Autoren:
Wei-Mao Qian, Hui-Zuo Xu, Yu-Ming Chu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On positive solutions for some second-order three-point boundary value problems with convection term

In this paper, a fixed point theorem in a cone and some inequalities of the associated Green’s function are applied to obtain the existence of positive solutions of second-order three-point boundary value problem with dependence on the first-order …

Autoren:
Yongfang Wei, Zhanbing Bai, Sujing Sun

01.12.2019 | Research | Ausgabe 1/2019 Open Access

General viscosity approximation methods for quasi-nonexpansive mappings with applications

The purpose of this paper is to introduce and study the general viscosity approximation methods for quasi-nonexpansive mappings in the setting of infinite-dimensional Hilbert spaces. Under suitable conditions, we prove that the sequences generated …

Autoren:
Xindong Liu, Zili Chen, Yun Xiao

01.12.2019 | Technical Paper | Ausgabe 1/2019

Seismic assessment of the historical third tower in San Marino based on a 3D laser scanner survey (3D-LSS)

Italian recent earthquakes demonstrated that historic and monumental buildings are extremely vulnerable to seismic motions. In particular, masonry towers are particularly affected by horizontal loads because of their typological features …

Autoren:
Davide Forcellini, Fabrizio Giardi, Marco Tanganelli

01.12.2019 | Research | Ausgabe 1/2019 Open Access

The growth of the Japanese black tea market: how technological innovation affects the development of a new market

This paper studies the birth of the market for Japanese black tea, its decline, and its rebirth. Currently, the black tea consumed in Japan is mostly imported. But the production of Japanese black tea has gradually increased, and more than 200 …

Autoren:
Risa Takano, Daisuke Kanama

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A reassessment of external demand’s contribution to Malta’s economic growth

The role of external demand in determining economic growth has undoubtedly increased as a result of globalisation. However, the conventional approach used to assess the contribution to growth of exports diminishes the positive influence of higher …

Autoren:
Aaron George Grech, Noel Rapa

01.12.2019 | Research | Ausgabe 1/2019 Open Access

An ECSO-based approach for optimizing degree distribution of short-length LT codes

Degree distribution plays a great role in the performance of Luby transform codes. Typical degree distributions such as ideal soliton distribution and robust soliton distribution are easy to implement and widely used. Nevertheless, their …

Autoren:
Peng Luo, Hui Fan, Weiguang Shi, Xiaoli Qi, Yuhao Zhao, Xueqing Zhou

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On the weak convergence for solving semistrictly quasi-monotone variational inequality problems

In this paper, we study the approximation problem of solutions for the semistrictly quasi-monotone variational inequalities in infinite-dimensional Hilbert spaces. We prove that the iterative sequence generated by the algorithm for solving the …

Autoren:
S. S. Chang, Salahuddin, L. Wang, M. Liu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Carbon intensity and emission reduction potential in China: spatial measuring method

This paper analyzes the spatial and temporal distribution of CO2 emissions intensity and energy intensity in China by using spatial measuring method from 2000 to 2013 and estimates the potential for CO2 emissions reduction. The results obtained in …

Autoren:
Liu Chen, Xin Li, Sheng Xue, Lingfei Qu, Minxi Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Modified HS conjugate gradient method for solving generalized absolute value equations

We investigate a kind of generalized equations involving absolute values of variables as | A | x − | B | | x | = b $|A|x-|B||x|=b$ , where A ∈ R n × n $A \in R^{n\times n}$ is a symmetric matrix, B ∈ R n × n $B \in R^{n\times n}$ is a diagonal …

Autoren:
Ya Li, Shouqiang Du

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Characterizing the R-duality of g-frames

In this paper, we define the g-Riesz-dual of a given special operator-valued sequence with respect to g-orthonormal bases for a separable Hilbert space. We demonstrate that the g-R-dual keeps some synchronous frame properties with the …

Autoren:
Liang Li, Pengtong Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Generalized multivalued Khan-type -contractions in complete metric spaces

In this article, we study a new generalized multivalued Khan-type ( ψ , ϕ ) $(\psi ,\phi )$ -contraction. We obtain some fixed point theorems related to the introduced contraction for multivalued mappings in complete metric spaces. Our theorems …

Autoren:
Yun Xiao, Zhijian Qiu, Xindong Liu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A note on certain integrals along polynomial compound curves

In this paper we consider a singular integral operator and a parametric Marcinkiewicz integral operator with rough kernel. These operators have singularity along sets of the form curves { x = P ( φ ( | y | ) ) y ′ } $\{x=P(\varphi (|y|))y'\}$ …

Autoren:
Feng Liu, Pu Zhang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On signal processing scheme based on network coding in relay-assisted D2D systems

Network coding (NC) can greatly improve a system’s performance on throughput and channel utilization via corresponding signal processing on the relay side. Implementation of NC in relay-assisted device-to-device (RA-D2D) communications is a …

Autoren:
Bo Li, Qiuming Zhao, Ruofei Ma, Hongjuan Yang, Gongliang Liu, Weidang Lu

01.12.2019 | Technical Paper | Ausgabe 1/2019

Studying the behavior of neural models under hybrid and reinforced foundations

The emergence of computational power with time has gathered the interests of civil and geotechnical engineers in problem solving. The use of artificial intelligence (AI)-based models in many geotechnical problems helps in saving time …

Autoren:
Vikas Kumar, Arvind Kumar

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Detecting stealthy attacks against industrial control systems based on residual skewness analysis

With the integration of the modern industrial control systems (ICS) with the Internet technology, ICS can make full use of the rich resources on the Internet to facilitate remote process control. However, every coin has two sides. More exposure to …

Autoren:
Yan Hu, Hong Li, Hong Yang, Yuyan Sun, Limin Sun, Zhiliang Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A novel dynamic reputation-based source routing protocol for mobile ad hoc networks

Routing in mobile ad hoc networks is based on the cooperation of the network’s nodes. The presence of selfish nodes that do not cooperate in this task drastically reduces the number of delivered packets. In order to find the better paths that …

Autoren:
Lenin Guaya-Delgado, Esteve Pallarès-Segarra, Ahmad Mohamad Mezher, Jordi Forné

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Analyzing the effects of the choice of model in the context of marginal changes in final demand

Literature on the choice of model for deriving an input–output table (IOT) from a pair of supply–use tables (SUTs) has focused on the consequences for the IOT and the Leontief inverse. Analyzing the technology and fixed sales structure …

Autoren:
Reinout Heijungs, Arjan de Koning

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Activism via attention: interpretable spatiotemporal learning to forecast protest activities

The diffusion of new information and communication technologies—social media in particular—has played a key role in social and political activism in recent decades. In this paper, we propose a theory-motivated, spatiotemporal learning approach …

Autoren:
Ali Mert Ertugrul, Yu-Ru Lin, Wen-Ting Chung, Muheng Yan, Ang Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On the meta distribution in spatially correlated non-Poisson cellular networks

In this paper, we consider a cellular network in which the locations of the base stations are spatially correlated. We introduce an analytical framework for computing the distribution of the conditional coverage probability given the point …

Autoren:
Shanshan Wang, Marco Di Renzo

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Joint user association and interference mitigation for drone-assisted heterogeneous wireless networking

Using drone as aerial access point (AAP) to provide communication connectivity becomes an attractive application in future industrial wireless networking. However, the user association becomes more complex in the 3-tier drone-assisted …

Autoren:
Chuan’an Wang, Bo Hu, Shanzhi Chen

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Energy-efficient filtering algorithm for a class of industrial sensor network systems with packet dropouts, time-varying delay, and multiplicative noises

In this paper, for the purpose of improving the energy efficiency of the industrial sensor networks, we investigated the event-based H∞ filtering problem for a class of discrete-time nonlinear sensor network systems with time-varying delay, packet …

Autoren:
Hui Li, Ming Lyu, Baozhu Du, Jie Zhang, Yuming Bo

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Virtual machine scheduling strategy based on machine learning algorithms for load balancing

With the rapid increase of user access, load balancing in cloud data center has become an important factor affecting cluster stability. From the point of view of green scheduling, this paper proposed a virtual machine intelligent scheduling …

Autoren:
Xin Sui, Dan Liu, Li Li, Huan Wang, Hongwei Yang

01.12.2019 | Original Article | Ausgabe 1/2019

Review of topics related to autism spectrum disorder on Twitter

Autism is a developmental disorder characterized by abnormal communication-verbal behaviors. This disorder affects the brain normal growth and development associated with social interactions and communication skills. The real cause of the disease …

Autor:
Mohammad Javad Deriss

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Reinforcement learning-based dynamic band and channel selection in cognitive radio ad-hoc networks

In cognitive radio (CR) ad-hoc network, the characteristics of the frequency resources that vary with the time and geographical location need to be considered in order to efficiently use them. Environmental statistics, such as an available …

Autoren:
Sung-Jeen Jang, Chul-Hee Han, Kwang-Eog Lee, Sang-Jo Yoo

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Positive solutions for a new class of Hadamard fractional differential equations on infinite intervals

In the present article, the following nonlinear problem of new Hadamard fractional differential equations on an infinite interval { D ν H x ( t ) + b ( t ) f ( t , x ( t ) ) + c ( t ) = 0 , 1 < ν < 2 , t ∈ ( 1 , ∞ ) , x ( 1 ) = 0 , H D ν − 1 x ( ∞ …

Autoren:
Shunyong Li, Chengbo Zhai

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Some notes on commutators of the fractional maximal function on variable Lebesgue spaces

Let 0 < α < n $0<\alpha<n$ and M α $M_{\alpha}$ be the fractional maximal function. The nonlinear commutator of M α $M_{\alpha}$ and a locally integrable function b is given by [ b , M α ] ( f ) = b M α ( f ) − M α ( b f ) …

Autoren:
Pu Zhang, Zengyan Si, Jianglong Wu

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

DEA Malmquist productivity index based on a double-frontier slacks-based model: Iranian road safety assessment

Many governments in the developing world face the social and economic consequences of road accidents and mortalities. Hence, more precise evaluation of regional programs to reduce road fatalities has been a concern for many safety …

Autoren:
S. S. Ganji, A. A. Rassafi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Common fixed point theorems for rational -contractive pairs of mappings with applications

In this paper, we study the existence of solution for the following non-linear matrix equations: X = Q + ∑ i = 1 n A i ∗ X A i − ∑ i = 1 n B i ∗ X B i , X = Q + ∑ i = 1 n A i ∗ ϒ ( X ) A i , $$\begin{aligned}& X=Q+ \sum^{n}_{i=1} A^{*}_{i} X …

Autoren:
Mian Bahadur Zada, Muhammad Sarwar

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Monotonicity formulas for the first eigenvalue of the weighted p-Laplacian under the Ricci-harmonic flow

Let Δ p , ϕ $\Delta _{p,\phi }$ be the weighted p-Laplacian defined on a smooth metric measure space. We study the evolution and monotonicity formulas for the first eigenvalue, λ 1 = λ ( Δ p , ϕ ) $\lambda _{1}=\lambda (\Delta _{p,\phi })$ , of Δ …

Autoren:
Abimbola Abolarinwa, Olukayode Adebimpe, Emmanuel A. Bakare

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Cross layer resource allocation for fault-tolerant topology control in wireless mesh networks based on genetic algorithm

Optimal topology control is an essential factor for efficient development of wireless mesh networks. For this purpose, a set of available tools can be exploited including power control, rate adaptation, channel assignment, channel selection …

Autoren:
Esmaeil Nik Maleki, Ghasem Mirjalily

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A new proof of the Orlicz–Lorentz centroid inequality

In this paper, we give another proof of the Orlicz–Lorentz centroid inequality which is obtained by Nguyen (Adv. Appl. Math. 92:99–121, 2018). We prove that a family of parallel chord movement under the Orlicz–Lorentz centroid operator is a shadow …

Autoren:
Fangwei Chen, Congli Yang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A construction of the high-rate regular quasi-cyclic LDPC codes

In this paper, a scheme to construct the high-rate regular quasi-cyclic low-density parity-check (QC-LDPC) codes is developed based on the finite geometry low-density parity-check (LDPC) codes. To achieve this, we first decompose the EG-LDPC code …

Autoren:
Qi Meng, Jia Xiang Zhao, Wei Xu, Liang Li

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Heterogeneity of logistics facilities: an issue for a better understanding and planning of the location of logistics facilities

In the last few years, the issue of the location of logistics activities emerged in the literature, in Europe and in the United States, especially from the perspective of logistics spatial dynamics as logistics sprawl. These issues of spatial …

Autoren:
Adeline Heitz, Pierre Launay, Adrien Beziat

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On the degenerate -Changhee numbers and polynomials

The Changhee numbers and polynomials are introduced by Kim, Kim and Seo (Adv. Stud. Theor. Phys. 7(20):993–1003, 2013), and the generalizations of those polynomials are characterized. In this paper, we investigate a new q-analog of the higher …

Autoren:
Yunjae Kim, Jin-Woo Park

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Pseudonymization risk analysis in distributed systems

In an era of big data, online services are becoming increasingly data-centric; they collect, process, analyze and anonymously disclose growing amounts of personal data in the form of pseudonymized data sets. It is crucial that such systems are …

Autoren:
Geoffrey K. Neumann, Paul Grace, Daniel Burns, Mike Surridge

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Analysis and correction to the influence of satellite motion on the measurement of inter-satellite two-way clock offset

Aiming at the influence of satellite motion on the inter-satellite two-way clock offset measurement, this paper proposed a correction method to eliminate the influence of satellite motion. Firstly, the measuring principle for the inter-satellite …

Autoren:
Feijiang Huang, Yanyu Chen, Tinghui Li, Qingxiao Shan, Junjun Zhang, Chenglin Cai

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Demonstrability of Narrowband Internet of Things technology in advanced metering infrastructure

The deployment cost of advanced metering infrastructure (AMI), one of the key elements for smart grid, often arises from three sub-systems, respectively referred to as data management system, communication network, and smart devices. Among them …

Autoren:
Liang Wan, Zhijian Zhang, Jian Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Investigation of the evaluation system of SMEs’ industrial cluster management performance based on wireless network development

Today, with the rapid development of mobile Internet technology, the operation of enterprises is basically based on the mobile network platform. Therefore, the study of the evaluation system of SMEs’ industrial cluster management performance based …

Autoren:
Jiang Lan, Wang Chengjun, Zhang Wei

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Asymptotic dichotomy in a class of higher order nonlinear delay differential equations

Employing a generalized Riccati transformation and integral averaging technique, we show that all solutions of the higher order nonlinear delay differential equation y ( n + 2 ) ( t ) + p ( t ) y ( n ) ( t ) + q ( t ) f ( y ( g ( t ) ) ) = 0 $$ …

Autoren:
Yunhua Ye, Haihua Liang

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Tracing patterns and shapes in remittance and migration networks via persistent homology

Pattern detection in network models provides insights to both global structure and local node interactions. In particular, studying patterns embedded within remittance and migration flow networks can be useful in understanding economic and …

Autoren:
Paul Samuel P. Ignacio, Isabel K. Darcy

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Path-following and semismooth Newton methods for the variational inequality arising from two membranes problem

A semismooth Newton method, based on variational inequalities and generalized derivative, is designed and analysed for unilateral contact problem between two membranes. The problem is first formulated as a corresponding regularized problem with a …

Autoren:
Shougui Zhang, Yueyue Yan, Ruisheng Ran

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Upper and lower bounds for the Bregman divergence

In this paper we study upper and lower bounds on the Bregman divergence Δ F ξ ( y , x ) : = F ( y ) − F ( x ) − 〈 ξ , y − x 〉 $\Delta_{\mathcal {F}}^{\xi }(y,x):=\mathcal {F}(y)-\mathcal {F}(x)- \langle \xi , y-x \rangle$ for some convex …

Autor:
Benjamin Sprung

01.12.2019 | Research | Ausgabe 1/2019 Open Access

The entropy solution of a reaction–diffusion equation on an unbounded domain

The degenerate parabolic equations from the reaction–diffusion problems are considered on an unbounded domain Ω ⊂ R N $\varOmega\subset\mathbb {R}^{N}$ . It is expected that only a partial boundary should be imposed the homogeneous boundary value …

Autoren:
Huashui Zhan, Yongping Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Security to wireless sensor networks against malicious attacks using Hamming residue method

Wireless sensor networks (WSNs) consist of small sensor nodes with limited energy. Such nodes have the ability to monitor the physical conditions and communicate information among the nodes without the requirement of the physical medium. WSNs are …

Autor:
Majid Alotaibi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Deterministic pilot pattern allocation optimization for sparse channel estimation based on CS theory in OFDM system

Compressed sensing (CS)-based sparse channel estimation requires the sensing matrix with the minimum mutual coherence (MC), and its corresponding pilot pattern obtain optimal estimation performance. In order to minimize the MC of the sensing …

Autoren:
Yang Nie, Xinle Yu, Zhanxin Yang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Efficient energy resource utilization in a wireless sensor system for monitoring water quality

In this paper, a new approach to energy harvesting and data transmission optimization in a heterogeneous-based multi-class and multiple resource wireless transmission wireless sensor network system that focus on monitoring water and its quality is …

Autoren:
Segun O. Olatinwo, Trudi H. Joubert

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A low redundancy data collection scheme to maximize lifetime using matrix completion technique

Sensor nodes equipped with various sensory devices can sense a wide range of information regarding human or things, thereby providing a foundation for Internet of Thing (IoT). Fast and energy-efficient data collection to the control center (CC) is …

Autoren:
Jiawei Tan, Wei Liu, Mande Xie, Houbing Song, Anfeng Liu, Ming Zhao, Guoping Zhang

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Investigating the preferences of individuals on public transport innovations using the Maximum Difference Scaling method

Innovation in transport and mobility has been notable in recent years: spanning from the technical and technological (e.g. Intelligent Transport Systems [ITS]) to the social realms (e.g. smart cities, social innovation, etc.) an unprecedented …

Autoren:
Stelios Tsafarakis, Panagiotis Gkorezis, Dimitrios Nalmpantis, Evangelos Genitsaris, Andreas Andronikidis, Efthymios Altsitsiadis

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Evaluation of a momentum based impact model in frontal car collisions for the prospective assessment of ADAS

In 2010 the European Commission [ 1 ] released a series of precautionary measures (focusing on vehicle safety, the safety of infrastructure and road users’ behavior) to halve the number of road deaths until 2020. Salmon et al. [ 2 ] point out that …

Autoren:
Stefan Smit, Ernst Tomasch, Harald Kolk, Michael Alois Plank, Jürgen Gugler, Hannes Glaser

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Internet and the structure of public revenue: resource revenue versus non-resource revenue

This paper examines whether the Internet has led to a shift from reliance on resource revenue towards progressive reliance on non-resource revenue, which is ultimately a sustainable source of public revenue. The analysis has been carried out using …

Autoren:
Sèna Kimm Gnangnon, Jean-François Brun

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Safety assessment of Czech motorways and national roads

Czech motorways and national roads constitute the primary road network. As one of the densest road networks in Europe, it carries the highest portion of traffic and connects the most important destinations in the Czech Republic [ 70 ]. This is …

Autoren:
Jiří Ambros, Richard Turek, Milan Brich, Jan Kubeček

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Wireless multimedia sensor network for rape disease detections

In order to reduce pesticides, it is also necessary to understand how plant diseases originate in the beginning and to be around them all around the world. One of the best ways to achieve this goal is to promote images that are not visible to the …

Autoren:
Zhou Libo, Huang Tian, Guan Chunyun

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A new differential privacy preserving crowdsensing scheme based on the Owen value

The Internet of Everything (IoE) paradigm makes the Internet more pervasive, interconnecting every devices of everyday life, and it is a promising solution for the development of 5G network services. Nowadays, Internet-connected devices are …

Autor:
Sungwook Kim

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Iterative methodology on locating a cement plant

In this study, a cement plant location was determined by considering essential parameters such as the locations of resources and their importance in the manufacturing process. A crucial mathematical problem, named Weber problem, reinforced the …

Autoren:
Emre Demir, Niyazi Ugur Kockal

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Riesz transforms on the Hardy space associated with generalized Schrödinger operators

Let L = − Δ + μ $\mathcal{L}=-\Delta +\mu $ be a generalized Schrödinger operator, where the measure μ is a nonnegative Radon measure. In this paper, we establish the molecular characterization of the Hardy type space H L 1 ( R n ) …

Autoren:
Yixin Wang, Pengtao Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Convergence rates of wavelet density estimation for negatively dependent sample

In this paper, linear and nonlinear wavelet estimators are defined for a density in a Besov space based on a negatively dependent random sample, and their upper bounds on L p $L^{p}$ ( 1 ≤ p < ∞ $1\leq p<\infty $ ) risk are provided.

Autor:
Junlian Xu

01.12.2019 | Original Article | Ausgabe 1/2019

Spark’s GraphX-based link prediction for social communication using triangle counting

Link prediction in a given instance of a network topology is a crucial task for extracting and inspecting the evolution of social networks. It predicts missing links in existing community networks and new or terminating links in future systems. It …

Autoren:
Ramesh Dharavath, Navaljeet Singh Arora

01.12.2019 | Original Article | Ausgabe 1/2019

Using medication administration and double-check data to infer social network influence in intensive care units

Identifying individuals with positive patient safety influence can be challenging and often involve time-consuming surveys. However, as healthcare systems increase their integration of health information technologies with clinical workflow, more …

Autoren:
Allan Fong, Tomilayo Komolafe, Ella Franklin, Sarah Henrickson Parker

01.12.2019 | Original Article | Ausgabe 1/2019

Predicting delay discounting from heterogeneous social media data

Delay discounting, a behavioral measure of impulsivity, is often used to quantify the human tendency to choose a smaller, sooner reward (e.g., $1 today) over a larger, later reward ($2 tomorrow). Delay discounting and its relation to human …

Autoren:
Tao Ding, Warren K. Bickel, Shimei Pan

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Common fixed point results in function weighted metric spaces

In this paper, we consider a common fixed point result in the context of a very recently defined abstract space: “function weighted metric space”. We present also some examples to illustrate the validity of the given results.

Autoren:
Obaid Alqahtani, Erdal Karapınar, Priya Shahi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Inequalities for curvature integrals in Euclidean plane

Let γ be a closed strictly convex curve in the Euclidean plane R 2 $\mathbb{R}^{2}$ with length L and enclosing an area A, and A ˜ 1 $\tilde{A}_{1}$ denote the oriented area of the domain enclosed by the locus of curvature centers of γ. Pan and Xu …

Autor:
Zengle Zhang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Existence and Ulam–Hyers stability of coupled sequential fractional differential equations with integral boundary conditions

We study the existence and uniqueness of solutions for coupled sequential fractional differential equations involving Caputo fractional derivative of order 1 < α ≤ 2 $1<\alpha \leq 2$ with integral boundary conditions. Moreover, we discuss …

Autoren:
Nazim I. Mahmudov, Areen Al-Khateeb

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

The dynamics of collective social behavior in a crowd controlled game

Despite many efforts, the behavior of a crowd is not fully understood. The advent of modern communication means has made it an even more challenging problem, as crowd dynamics could be driven by both human-to-human and human-technology …

Autoren:
Alberto Aleta, Yamir Moreno

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Understanding automated and human-based technical debt identification approaches-a two-phase study

The technical debt (TD) concept brings a new perspective on how software development tasks are discussed and managed. It describes the tradeoff between the short-term payoffs (such as a timely software release) of delaying some technical …

Autoren:
Rodrigo O. Spínola, Nico Zazworka, Antonio Vetro, Forrest Shull, Carolyn Seaman

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On Gardner–Hartenstine’s inequality

In the paper, we give a new generalization of Gardner–Hartenstine inequality and establish its integral form. As applications, we combine an important inequality and give some broader improvements.

Autoren:
Chang-Jian Zhao, Wing-Sum Cheung

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Some identities of degenerate Euler polynomials associated with degenerate Bernstein polynomials

In this paper, we investigate some properties and identities for degenerate Euler polynomials in connection with degenerate Bernstein polynomials by means of fermionic p-adic integrals on Z p $\mathbb{Z}_{p}$ and generating functions. In addition …

Autoren:
Won Joo Kim, Dae San Kim, Han Young Kim, Taekyun Kim

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A modified singular Trudinger–Moser inequality

Let Ω ⊂ R 2 $\varOmega \subset \mathbb{R}^{2}$ be a smooth bounded domain, W 0 1 , 2 ( Ω ) $W_{0}^{1,2}(\varOmega )$ be the standard Sobolev space. Assuming certain conditions on a function g : R → R $g:\mathbb{R}\rightarrow \mathbb{R}$ , we …

Autor:
Yamin Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Weighted inequalities for fractional Hardy operators and commutators

In this paper, we introduce a fractional maximal operators N α $N_{\alpha }$ on ( 0 , ∞ ) $(0,\infty )$ associated to the fractional Hardy operator P α $P_{\alpha }$ and its dual Q α , 0 ≤ α < 1 $Q_{\alpha }, 0\leq \alpha <1$ , and obtain some …

Autoren:
Wenming Li, Dong Liu, Jing Liu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On conjectures of Stenger in the theory of orthogonal polynomials

The conjectures in the title deal with the zeros x j $x_{j}$ , j = 1 , 2 , … , n $j=1,2, \ldots ,n$ , of an orthogonal polynomial of degree n > 1 $n>1$ relative to a nonnegative weight function w on an interval [ a , b ] $[a,b]$ and with the …

Autoren:
Walter Gautschi, Ernst Hairer

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A kind of sharp Wirtinger inequality

In this study, we give a kind of sharp Wirtinger inequality ∥ f ∥ p ≤ C r , p , q ∥ f ( r ) ∥ q for all 1 ≤ p , q ≤ ∞ , $$ \Vert f \Vert _{p}\le C_{r,p,q} \bigl\Vert f^{(r)} \bigr\Vert _{q} \quad \text{for all } 1\le p,q\le \infty , $$ where f is …

Autoren:
Guiqiao Xu, Zehong Liu, Wanting Lu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Transpose of Nörlund matrices on the domain of summability matrices

Let E = ( E n , k ) n , k ≥ 0 $E=(E_{n,k})_{n,k\geq 0}$ be an invertible summability matrix with bounded absolute row sums and column sums, and let E p $E_{p}$ denote the domain of E in the sequence space ℓ p $\ell _{p}$ ( 1 ≤ p < ∞ ) $(1\le …

Autor:
Gholamreza Talebi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Ant colony optimization algorithm based on mobile sink data collection in industrial wireless sensor networks

Industrial wireless sensor network (IWSN) has changed the information transmission way for existing industrial control system. In mobile sink-based industrial wireless sensor networks, the energy consumption optimization for data collection has …

Autoren:
Hong Zhang, Zhanming Li, Wanneng Shu, Jarong Chou

01.12.2019 | Original Article | Ausgabe 1/2019

On the parameterized complexity of the problem of inferring protein–protein interaction directions based on cause–effect pairs

We consider the following problem: given an undirected (mixed) network and a set of ordered source–target pairs, or cause–effect pairs, direct all edges so as to maximize the number of pairs that admit a directed source–target path. This is called …

Autor:
Mehdy Roayaei

01.12.2019 | Original Article | Ausgabe 1/2019

A graph theoretical approach for node covering in tree based architectures and its application to bioinformatics

Investigation of DNA sequences is a paramount stage for apprehending biological structures and functions. The known methods for investigating DNA sequence alignments usually fail to produce an exact solution. Motivated by the problem of finding …

Autor:
Angel D.

01.12.2019 | Original Article | Ausgabe 1/2019

Topic modeling and sentiment analysis of global climate change tweets

Social media websites can be used as a data source for mining public opinion on a variety of subjects including climate change. Twitter, in particular, allows for the evaluation of public opinion across both time and space because geotagged tweets …

Autoren:
Biraj Dahal, Sathish A. P. Kumar, Zhenlong Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Misallocation and manufacturing TFP in Ecuador: formal, semi-formal and informal firms

Resource misallocation can lower the aggregate total factor productivity (TFP). We use micro-data on manufacturing establishments from the Instituto Ecuatoriano de Estadística y Censos to quantify the differences in productivity and diagnose the …

Autoren:
Rafaela Bastidas, Nicolás Acosta

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Large-scale and high-resolution analysis of food purchases and health outcomes

To complement traditional dietary surveys, which are costly and of limited scale, researchers have resorted to digital data to infer the impact of eating habits on people’s health. However, online studies are limited in resolution: they are …

Autoren:
Luca Maria Aiello, Rossano Schifanella, Daniele Quercia, Lucia Del Prete

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Multi-objective routing aware of mixed IoT traffic for low-cost wireless Backhauls

The futuristic wireless networks expects to provide adequate support for distinct kind of applications, their diverse requirements, and scenarios for future Internet systems, such as Internet of Things based on multimedia and sensor data, while …

Autoren:
Vinícius N. Medeiros, Bruno Silvestre, Vinicius C. M. Borges

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A unified approach to fractal Hilbert-type inequalities

In the present study we provide a unified treatment of fractal Hilbert-type inequalities. Our main result is a pair of equivalent fractal Hilbert-type inequalities including a general kernel and weight functions. A particular emphasis is devoted …

Autoren:
Tserendorj Batbold, Mario Krnić, Predrag Vuković

01.12.2019 | Case Study | Ausgabe 1/2019

Stabilization of problematic soil by utilizing cementitious materials

Due to the urbanization and the need to develop the transportation services, it is inevitable to deal with ground characterized by undesirable geotechnical properties. The problematic soils are divided into swelling soils, collapsible and …

Autoren:
Ako Daraei, Aryan Far Haji Sherwani, Rabar H. Faraj, Shvan Mohammad, Sedad Kurdo, Shokrollah Zare, Arsalan Mahmoodzadeh

01.12.2019 | Technical Paper | Ausgabe 1/2019

Bearing capacity of strip footing resting on fibre-reinforced pond ash overlying soft clay

The use of the industrial hazardous waste like pond ash to strengthen the soft clay (weak soil) is also helpful in solving the land requirement problem for its deposition. In the present study, the results of an investigation carried out on …

Autoren:
Sudhir Arora, Arvind Kumar

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Performance of a dense urban massive MIMO network from a simulated ray-based channel

Massive MIMO network deployments are expected to be a key feature of the upcoming 5G communication systems. Such networks are able to achieve a high level of channel quality and can simultaneously serve multiple users with the same resources. In …

Autoren:
Mohammed Zahid Aslam, Yoann Corre, Emil Björnson, Erik G. Larsson

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A routing algorithm for region division based on virtual spider web model

A disjoint multipath routing algorithm based on region division is proposed to resolve problems such as potential “hot area” around the sink node and path instability caused by frequent movement of routing nodes in the mobile wireless sensor …

Autoren:
Lian-suo Wei, Xian-cheng Hu, Yuan Guo

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A new intrusion detection and alarm correlation technology based on neural network

With the continuous development of computer networks, the security of the network has become increasingly prominent. A major threat to network security is the intrusion of information systems through the network. Intrusion detection of the …

Autoren:
Yansong Liu, Li Zhu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Joint rate control and power allocation for low-latency reliable D2D-based relay network

Emerging 5G applications impose stringent requirements on network latency and reliability. In this work, we propose a low-latency reliable device-to-device (D2D) relay network framework to improve the cell coverage and user satisfaction.

Autoren:
Yahui Wang, Yanhua He, Chen Xu, Zhenyu Zhou, Shahid Mumtaz, Jonathan Rodriguez, Haris Pervaiz

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Cross-pose face recognition by integrating regression iteration and interactive subspace

At present, the pose change of the face test sample is the main reason that affects the accuracy of face recognition, and the design of cross-pose recognition algorithm is a technical problem to be solved. In this paper, a cross-pose face …

Autoren:
Kefeng Li, Quanzhen Huang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Reliability enhancement in multi-numerology-based 5G new radio using INI-aware scheduling

Multi-numerology waveform-based 5G new radio (NR) systems offer great flexibility for different requirements of users and services. However, there is a new type of problem that is defined as inter-numerology interference (INI) between multiple …

Autoren:
Ahmet Yazar, Hüseyin Arslan

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Extensions of inequalities for sector matrices

In this note, we first prove an inequality for sector matrices. This complements a result due to Kittaneh and Sakkijha (Linear Multilinear Algebra, 2018, https://doi.org/10.1080/03081087.2018.1441800 ) concerning accretive–dissipative matrices.

Autoren:
Song Lin, Xiaohui Fu

01.12.2019 | Original Article | Ausgabe 1/2019

FCMiner: mining functional communities in social networks

Community discovery is a popular topic in social network analysis which facilitates several real-world applications. Most commonly, communities are discovered according to their structural similarities resulting in tightly connected user …

Autoren:
T. M. G. Tennakoon, Richi Nayak

01.12.2019 | Original Article | Ausgabe 1/2019

Why some people do not use Facebook?

Facebook is the most pervasive social network in the world. While, we would commonly expect everyone who has access to the Internet to use Facebook, some people have chosen not to join or to opt-out of its services. This qualitative study is an …

Autoren:
Anas Aloudat, Ons Al-Shamaileh, Katina Michael

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Asymptotic tail probability of weighted infinite sum of conditionally dependent and consistently varying tailed random variables

This paper investigates the asymptotic behavior of the tail probability of a weighted infinite sum of random variables with consistently varying tails under two conditional dependence structures. The obtained results extend and improve the …

Autoren:
Qingwu Gao, Xijun Liu, Chunhong Chai

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Statistical inference for the new INAR(2) models with random coefficient

In this paper, we investigate a random coefficient INAR(2) process which may model the number of traded stocks, the number of infected people, the number of birds in some area, etc. We show that this process is a stationary and ergodic process …

Autor:
Xu Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A cost-effective decentralized vehicle remote positioning and tracking system using BeiDou Navigation Satellite System and Mobile Network

Most existing production vehicle tracking services rely on the Global Positioning System (GPS) and a proprietary server/client infrastructure. This type of inflexible and centralized architecture incurs severe vender-dependency and high service …

Autoren:
Jingfa Wei, Chui-Hui Chiu, Feijiang Huang, Junjun Zhang, Chenglin Cai

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Boundedness and essential norm of an integral-type operator on a Hilbert–Bergman-type spaces

Let D ${\mathbb {D}} $ be the open unit disk of the complex plane C ${\mathbb {C}} $ and H ( D ) $H({\mathbb {D}} )$ be the space of all analytic functions on D ${\mathbb {D}} $ . Let A γ , δ 2 ( D ) $A^{2}_{\gamma ,\delta }({\mathbb {D}} )$ be …

Autoren:
Stevo Stević, Zhi-Jie Jiang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Fuglede–Putnam type theorems for -quasihyponormal operators via hyponormal operators

For Hilbert space operators S, X, and T, ( S , X , T ) ∈ F P $(S,X,T)\in FP$ means Fuglede–Putnam theorem holds for triplet ( S , X , T ) $(S,X,T)$ , that is, S X = X T $SX=XT$ ensures S ∗ X = X T ∗ $S^{\ast }X=XT^{\ast }$ . Similarly, ( S , T ) ∈ …

Autoren:
Jiang-Tao Yuan, Cai-Hong Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Research on time difference detection algorithm based on combination of GNSS and PPP

With the gradual increase in the number of GNSS systems and the improvement of functions, in addition to the single-system navigation and timing service, the integrated navigation and positioning service among multiple systems can provide users …

Autoren:
Jun Yang, Ziwen Zhang, Yijun Liu, Zuoteng Xu, Haowen Chen, Wende Zhang, Yuqiang Chen

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A privacy-preserving exception handling approach for dynamic mobile crowdsourcing applications

The ever-increasing popularity of mobile devices (e.g., mobile phones and smart watches) has created a variety of crowdsourcing applications by employing the massive and distributed mobile computing resources. Typically, a task requester sends …

Autoren:
Yanwei Xu, Hanwen Liu, Chao Yan

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Generalized strong vector quasi-equilibrium problems with variable ordering structure

In this paper, two kinds of generalized strong vector quasi-equilibrium problems with variable ordering structure are considered by using the concept of cosmically upper continuity rather than upper semi-continuity for cone-valued mapping.

Autoren:
Jia-Yu Mao, San-hua Wang, Jin-xia Huang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Station green lighting system based on sensor network

Aiming at the problems of high energy consumption, chaotic lines, and inconsistent lighting sources in many stations, this paper presents a simple, reliable, and convenient station green lighting system based on sensor network. According to the …

Autoren:
Min Wang, Zhongbo Wu, Hang Qin

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Characterization of dynamic wireless body area network channels during walking

In this work, finite-difference time-domain was used for the investigation of dynamic wireless body area network channel characteristics during walking, thus accounting for dynamic aspects and body postures. This involves the study of on-body …

Autoren:
Marshed Mohamed, Wout Joseph, Günter Vermeeren, Emmeric Tanghe, Michael Cheffena

01.12.2019 | Technical Note | Ausgabe 1/2019

Site response analysis in cross-anisotropic alluvial deposits subjected to inclined incident SH wave

Elastic site response analysis in cross-anisotropic deposits has been elaborated due to incidence of inclined SH wave front. A site consisting of a single cross-anisotropic soil layer rested on a half-space representing the bedrock is examined …

Autoren:
Foroogh Hemmati Masouleh, Reza Jamshidi Chenari, Reza Saleh Jalali, Ali Ghorbani

01.12.2019 | Technical Note | Ausgabe 1/2019

Model tests on geosynthetic-encased construction concrete debris column in fly ash fill

Providing geosynthetic-encased stone columns is a commonly adopted technique to improve the load-carrying capacity and reduce settlements in weak fills. Addressing the geo-environmental aspect, two different waste materials, i.e., fly ash and …

Autoren:
Rajeev Bhatia, Arvind Kumar

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On a new class of convex functions and integral inequalities

The aim of this paper is to introduce a new extension of convexity called σ-convexity. We show that the class of σ-convex functions includes several other classes of convex functions. Some new integral inequalities of Hermite–Hadamard type are …

Autoren:
Shanhe Wu, Muhammad Uzair Awan, Muhammad Aslam Noor, Khalida Inayat Noor, Sabah Iftikhar

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Improved LMI-based stability conditions for a competitive Lotka–Volterra system with time-varying delays

This paper is concerned with the local asymptotic stability problem for a competitive Lotka–Volterra system with time-varying delays. By constructing the novel augmented Lyapunov–Krasovskii functionals and using the Wirtinger integral inequality …

Autoren:
Rui Dong, Lei Chen, Yonggang Chen

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A note on degenerate Bernstein polynomials

Recently, degenerate Bernstein polynomials have been introduced by Kim and Kim. In this paper, we investigate some properties and identities for the degenerate Bernstein polynomials associated with special numbers and polynomials including …

Autoren:
Taekyun Kim, Dae San Kim, Gwan-Woo Jang, Jongkyum Kwon

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A fundamental proof of convergence of alternating direction method of multipliers for weakly convex optimization

The convergence of the alternating direction method of multipliers (ADMMs) algorithm to convex/nonconvex combinational optimization has been well established in the literature. Due to the extensive applications of a weakly convex function in …

Autoren:
Tao Zhang, Zhengwei Shen

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Centrality in modular networks

Identifying influential nodes in a network is a fundamental issue due to its wide applications, such as accelerating information diffusion or halting virus spreading. Many measures based on the network topology have emerged over the years to …

Autoren:
Zakariya Ghalmane, Mohammed El Hassouni, Chantal Cherifi, Hocine Cherifi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Research on perception bias of implementation benefits of urban intelligent transportation system based on big data

Providing convenient and comfortable transportation services for residents is an important part of urban construction, in which the intelligent transportation system (ITS) plays an important role. This study used the big data of urban public …

Autoren:
Xiao Hu, Zhenghua Deng

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Performance analysis of multi-rate signal processing digital filters on FPGA

Multi-rate signal processing, an important part of the design of a digital frequency converter, is realized mainly based on interpolation and decimation, which match the sampling rate between the baseband and high-frequency processing side …

Autoren:
Qingfeng Jing, Yujia Li, Jincheng Tong

01.12.2019 | Research | Ausgabe 1/2019 Open Access

An improved version of a result of Chandra, Li, and Rosalsky

For an array of rowwise pairwise negative quadrant dependent, mean 0 random variables, Chandra, Li, and Rosalsky provided conditions under which weighted averages converge in L 1 $\mathscr{L}_{1}$ to 0. The Chandra, Li, and Rosalsky result is …

Autoren:
Deli Li, Andrew Rosalsky

01.12.2019 | Research | Ausgabe 1/2019 Open Access

M-positive semi-definiteness and M-positive definiteness of fourth-order partially symmetric Cauchy tensors

Inspired by symmetric Cauchy tensors, we define fourth-order partially symmetric Cauchy tensors with their generating vectors. In this article, we focus on the necessary and sufficient conditions for the M-positive semi-definiteness and M-positive …

Autoren:
Haitao Che, Haibin Chen, Yiju Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Approximate solution of generalized inhomogeneous radical quadratic functional equations in 2-Banach spaces

In this paper, using Brzdȩk and Ciepliński’s fixed point theorems in a 2-Banach space, we investigate approximate solution for the generalized inhomogeneous radical quadratic functional equation of the form f ( a x 2 + b y 2 ) = a f ( x ) + b f ( …

Autoren:
Yali Ding, Tian-Zhou Xu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

The impact mechanism of rural land circulation on promoting rural revitalization based on wireless network development

The objective and accurate evaluation of land value is one of the biggest interest issues that farmers are concerned about in the transfer of rural land, and it is one of the influencing factors that influence the country’s rural rejuvenation …

Autoren:
Ai-min Zheng, Zhong Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Research on the perfection of the countermeasures of the judicial execution scheme in the administrative law system based on annealing algorithm

With the continuous development of computer technology and the popularization and application of various types of intelligent algorithms, there are also applications in the current administrative judicial system in China. In order to be able to …

Autor:
Jiangze Qu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Investigation and analysis of the effectiveness and influencing factors of internal control in Chinese enterprise based on wireless network

The internal control system of the enterprise is an important application method to improve the operational efficiency of enterprises and reduce unnecessary cost expenditures, and there are many factors that affect its effectiveness. How to find …

Autoren:
Bo Liu, Pingshui Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Some characterizations of error bound for non-lower semicontinuous functions

In this paper, we study the error bound of non-lower semicontinuous functions. First, we extend the concepts of strong slope and global slope to the non-lower semicontinuous functions. Second, by using the two concepts, some characterizations of …

Autoren:
Miantao Chao, Xiuping Wang, Dongying Liang

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Inside 50,000 living rooms: an assessment of global residential ornamentation using transfer learning

The global community decorates their homes based on personal decisions and contextual influences of their larger cultural and economic surroundings. The extent to which spatial patterns emerge in residential decoration practices has been …

Autoren:
Xi Liu, Clio Andris, Zixuan Huang, Sohrab Rahimi

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On complexity of a new Mehrotra-type interior point algorithm for linear complementarity problems

In this paper, a variant of Mehrotra-type predictor–corrector algorithm is proposed for P ∗ ( κ ) $P_{*}(\kappa )$ linear complementarity problems. In this algorithm, a safeguard step is used to avoid small step sizes and a new corrector direction …

Autoren:
Yiyuan Zhou, Mingwang Zhang, Zhengwei Huang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Asymptotic BER EXIT chart analysis for high rate codes based on the parallel concatenation of analog RCM and digital LDGM codes

This paper proposes an extrinsic information transfer (EXIT) chart analysis and an asymptotic bit error rate (BER) prediction method to speed up the design of high rate RCM-LDGM hybrid codes over AWGN and fast Rayleigh channels. These codes are …

Autoren:
Imanol Granada, Pedro M. Crespo, Javier Garcia-Frías

01.12.2019 | Research | Ausgabe 1/2019 Open Access

An efficient construction of polar codes based on the general partial order

Traditionally, the construction of polar codes requires intense computations to sort all bit channels. In previous works, two types of partial orders (POs) of polar codes were proposed to decrease the computations in the construction process. In …

Autoren:
Wei Wang, Liping Li, Kai Niu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Self-adaptive subgradient extragradient method with inertial modification for solving monotone variational inequality problems and quasi-nonexpansive fixed point problems

In this paper, we introduce a new algorithm with self-adaptive method for finding a solution of the variational inequality problem involving monotone operator and the fixed point problem of a quasi-nonexpansive mapping with a demiclosedness …

Autoren:
Ming Tian, Mengying Tong

01.12.2019 | Research | Ausgabe 1/2019 Open Access

On certain inequalities associated to curvature properties of the nonlinear PPH reconstruction operator

In this paper we study the curvature term for the Lagrange and PPH (Amat et al. in Found. Comput. Math. 6:193–225, 2006 and Ortiz and Trillo in Preprint, arXiv:1811.10566 , 2018) reconstruction operators in uniform and nonuniform meshes. We also …

Autoren:
J. C. Trillo, P. Ortiz

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Log-moment estimators of the Nakagami-lognormal distribution

In this paper, estimators of the Nakagami-lognormal (NL) distribution based on the method of log-moments have been derived and thoroughly analyzed. Unlike maximum likelihood (ML) estimators, the log-moment estimators of the NL distribution are …

Autoren:
Juan Reig, Conor Brennan, Vicent M. Rodrigo Peñarrocha, Lorenzo Rubio

01.12.2019 | Research | Ausgabe 1/2019 Open Access

RSSD-based 3-D localization of an unknown radio transmitter using weighted least square and factor graph

Realizing accurate detection of an unknown radio transmitter (URT) has become a challenging problem due to its unknown parameter information. A method based on received signal strength difference (RSSD) fingerprint positioning technique and using …

Autoren:
Liyang Zhang, Taihang Du, Chundong Jiang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Robot indoor location modeling and simulation based on Kalman filtering

Wireless signal fingerprint positioning technology has been widely used in indoor positioning. In view of the influence of a large number of interference noise in indoor, the error of receive signal strength indicator is large, the more complex …

Autoren:
Jian Yin Lu, Xinjie Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

AtICNet: semantic segmentation with atrous spatial pyramid pooling in image cascade network

This paper describes a new type of image segmentation method based on deep convolutional neural networks (DCNN) in the actual autonomous driving scene. The spatial pyramid pooling model is used to identify and segment the actual scene to complete …

Autoren:
Jin Chen, Chuanya Wang, Ying Tong

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Efficient packet transmission in wireless ad hoc networks with partially informed nodes

One formal way of studying cooperation and incentive mechanisms in wireless ad hoc networks is to use game theory. In this respect, simple interaction models such as the forwarder’s dilemma have been proposed and used successfully. However, this …

Autoren:
Sara Berri, Samson Lasaulce, Mohammed Said Radjef

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Study on reflectivity data interpolation and mosaics for multiple Doppler weather radars

Multiple weather radars’ joint detection can enlarge the radar detection range and can improve the detection accuracy, which has become an important method to monitor large-scale weather effectively. In this paper, the methods of interpolating …

Autoren:
Min Sun, Haijiang Wang, Zhaoming Li, Mengqing Gao, Zili Xu, Jing Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A big data placement method using NSGA-III in meteorological cloud platform

Meteorological cloud platforms (MCP) are gradually replacing the traditional meteorological information systems to provide information analysis services such as weather forecasting, disaster warning, and scientific research. However, the explosive …

Autoren:
Feng Ruan, Renhao Gu, Tao Huang, Shengjun Xue

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Performance analysis of multiuser dual-hop satellite relaying systems

In this study, we investigate the outage probability (OP) of a multiuser dual-hop satellite relaying system with decode-and-forward (DF) protocol, where both uplink and downlink experience Shadowed Rician (SR) fading. Specifically,by taking the …

Autoren:
Xuewen Wu, Min Lin, Qingquan Huang, Jian Ouyang, Athanasios D. Panagopoulos

01.12.2019 | Research | Ausgabe 1/2019 Open Access

EKF/UKF-based channel estimation for robust and reliable communications in V2V and IIoT

Cyber-physical systems (CPSs) are characterized by integrating computation, communication, and physical system. In typical CPS application scenarios, vehicle-to-vehicle (V2V) and Industry Internet of Things (IIoT), due to doubly selective fading …

Autoren:
Yong Liao, Xuanfan Shen, Guodong Sun, Xuewu Dai, Shaohua Wan

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Corporate payments networks and credit risk rating

Aggregate and systemic risk in complex systems are emergent phenomena depending on two properties: the idiosyncratic risk of the elements and the topology of the network of interactions among them. While a significant attention has been given to …

Autoren:
Elisa Letizia, Fabrizio Lillo

01.12.2019 | Research | Ausgabe 1/2019 Open Access

ECPM: an energy-efficient cloudlet placement method in mobile cloud environment

The development of mobile cloud computing has greatly improved the computing and storage performance of mobile devices. And mobile cloud computing is undoubtedly the necessary way to solve the performance of the process for mobile applications …

Autoren:
Chao Shen, Shengjun Xue, Shucun Fu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Context-based influence maximization with privacy protection in social networks

As the increase of requirements of accessing and sharing information of people, large social networks have appeared. The influence maximization over social network has been a popular research topic, whose goal is to maximize the expected range of …

Autoren:
Dong Jing, Ting Liu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Research on neural network chaotic encryption algorithm in wireless network security communication

The rapid development of wireless network brings a lot of convenience to people’s lives, but there are still many problems to be solved in wireless networks. Among them, communication security is the most critical, especially secure transactions …

Autoren:
Chen Liang, Qun Zhang, Jianfeng Ma, Kaiming Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Spatial modulation based on reconfigurable antennas: performance evaluation by using the prototype of a reconfigurable antenna

In this paper, we study the performance of spatial modulation based on reconfigurable antennas. Two main contributions are provided. We introduce an analytical framework to compute the error probability, which is shown to be accurate and useful …

Autoren:
Dung Nguyen Viet, Marco Di Renzo, Vedaprabhu Basavarajappa, Beatriz Bedia Exposito, Jose Basterrechea, Dinh-Thuy Phan-Huy

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Adaptive cascade single-shot detector on wireless sensor networks

The target detection model based on convolutional neural networks has recently achieved a series of exciting results in the target detection tasks of the PASCAL VOC and MS COCO data sets. However, limited by the data set for a particular scenario …

Autoren:
Zhiyong Wei, Fengling Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Association of Jensen’s inequality for s-convex function with Csiszár divergence

In the article, we establish an inequality for Csiszár divergence associated with s-convex functions, present several inequalities for Kullback–Leibler, Renyi, Hellinger, Chi-square, Jeffery’s, and variational distance divergences by using …

Autoren:
Muhammad Adil Khan, Muhammad Hanif, Zareen Abdul Hameed Khan, Khurshid Ahmad, Yu-Ming Chu

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Predicting and explaining behavioral data with structured feature space decomposition

Modeling human behavioral data is challenging due to its scale, sparseness (few observations per individual), heterogeneity (differently behaving individuals), and class imbalance (few observations of the outcome of interest). An additional …

Autoren:
Peter G. Fennell, Zhiya Zuo, Kristina Lerman

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Developing a user typology considering unimodal and intermodal mobility behavior: a cluster analysis approach using survey data

This paper aims to develop a user typology which enables user-specific analyses in respect of mobility behavior. It addresses the challenge of integrating unimodal and intermodal travel behavior into a user typology to obtain an overview of …

Autoren:
Rebekka Oostendorp, Simon Nieland, Laura Gebhardt

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Sufficient conditions to solve two systems of integral equations via fixed point results

The purpose of this paper is to study the solution of two systems of nonlinear integral equations via fixed point results in a complete dislocated b-metric space. Also the notion of graphic contractions on a closed set for two families of graph …

Autoren:
Tahair Rasham, Abdullah Shoaib, Giuseppe Marino, Badriah A. S. Alamri, Muhammad Arshad

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Analysis of red pepper marketing: evidence from northwest Ethiopia

Red pepper is the world’s second important vegetable ranking after tomatoes. It is the most common spice type which is produced for both commercial and consumption purposes due to its great role in flavoring, food coloring and source of vitamins …

Autoren:
Abebe Birara Dessie, Tigabu Dagnew Koye, Abebe Dagnew Koye, Asmamaw Alemu Abitew

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Improved LSH for privacy-aware and robust recommender system with sparse data in edge environment

Recommender systems have become a popular and effective way to quickly discover new service items that are probably preferred by prospective users. Through analyzing the historical service usage data produced in the past, a recommender system can …

Autoren:
Xuening Chen, Hanwen Liu, Dan Yang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Evaluation of range-based indoor tracking algorithms by merging simulation and measurements

Precise location information will play an important role in 5G networks, their applications and services, especially in indoor environments. Ultra-wideband (UWB) technology offers exceptional temporal resolution enabling the emergence of high …

Autoren:
Klemen Bregar, Roman Novak, Mihael Mohorčič

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Automated testing of NFV orchestrators against carrier-grade multi-PoP scenarios using emulation-based smoke testing

Future large-scale network function virtualization (NFV) environments will be based on hundreds or even thousands of NFV infrastructure installations, the so called points of presence (PoP). All their resources and the services deployed on top of …

Autoren:
Manuel Peuster, Michael Marchetti, Gerardo García de Blas, Holger Karl

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A note on type 2 q-Bernoulli and type 2 q-Euler polynomials

As is well known, power sums of consecutive nonnegative integers can be expressed in terms of Bernoulli polynomials. Also, it is well known that alternating power sums of consecutive nonnegative integers can be represented by Euler polynomials. In …

Autoren:
Dae San Kim, Taekyun Kim, Han Young Kim, Jongkyum Kwon

01.12.2019 | Research | Ausgabe 1/2019 Open Access

An optimization-based approach for efficient network monitoring using in-band network telemetry

In recent years, as a result of the proliferation of non-elastic services and the adoption of novel paradigms, monitoring networks with high level of detail is becoming crucial to correctly identify and characterize situations related to faults …

Autoren:
Jonatas Adilson Marques, Marcelo Caggiani Luizelli, Roberto Irajá Tavares da Costa Filho, Luciano Paschoal Gaspary

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Perceived action spaces for public actors in the development of Mobility as a Service

The public sector is showing increased interest in Mobility as a Service (MaaS), as its introduction and market penetration is proposed to potentially disrupt the personal transport system. However, involved public actors are approaching MaaS very …

Autoren:
Dalia Mukhtar-Landgren, Göran Smith

01.12.2019 | Research | Ausgabe 1/2019 Open Access

System design of the physical layer for Loon’s high-altitude platform

This paper describes several aspects of the physical layer and over the air interface of Loon. Loon utilizes stratospheric balloon-based high-altitude platforms (HAPs) that use Long-Term Evolution (LTE) to connect people with standard User …

Autoren:
Sharath Ananth, Ben Wojtowicz, Alfred Cohen, Nidhi Gulia, Arunoday Bhattacharya, Brian Fox

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Solvability of some classes of singular integral equations of convolution type via Riemann–Hilbert problem

In this paper, we study methods of solution for some kinds of convolution type singular integral equations with Cauchy kernel. By means of the classical boundary value problems for analytic functions and of the theory of complex analysis, we deal …

Autor:
Pingrun Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A note on modified degenerate q-Daehee polynomials and numbers

We consider the modified degenerate q-Daehee polynomials and numbers of the second kind which can be represented as the p-adic q-integral. Furthermore, we investigate some properties of those polynomials and numbers.

Autoren:
Jeong Gon Lee, Won Joo Kim, Lee-Chae Jang, Byung Moon Kim

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Oscillatory and asymptotic properties of third-order quasilinear delay differential equations

In this paper, we consider a class of quasilinear third-order differential equations with a delayed argument. We establish new sufficient conditions for all solutions of such equations to be oscillatory or almost oscillatory. Those criteria …

Autoren:
G. E. Chatzarakis, J. Džurina, I. Jadlovská

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

A shift-share based tool for assessing the contribution of a modal shift to the decarbonisation of inland freight transport

Resulting from the 21st UN Climate Change Conference (COP21) in Paris in 2015, the European Union’s (EU) current climate and energy objective is to reduce greenhouse gas (GHG) emissions by 40% below 1990 levels by 2030, and transportation must …

Autoren:
Olaf Jonkeren, Jan Francke, Johan Visser

01.12.2019 | Research | Ausgabe 1/2019 Open Access

q-Non uniform difference calculus and classical integral inequalities

We first establish q-non uniform difference versions of the integral inequalities of Hölder, Cauchy–Schwarz, and Minkowski of classical mathematical analysis and then integral inequalities of Grönwall and Bernoulli based on the Lagrange method of …

Autoren:
Gaspard Bangerezako, Jean Paul Nuwacu, Enas M Shehata

01.12.2019 | Research | Ausgabe 1/2019 Open Access

The research of the application of the binary search algorithm of RFID system in the supermarket shopping information identification

The traditional bar code scanning in supermarkets is inefficient, which has been unable to meet the further development of a supermarket. To meet the needs of quick shopping in supermarkets, binary search algorithm has been proposed to prevent …

Autoren:
Ling Wu, Sheng Liu, Baoling Zhao, Weinan Wu, Baozhong Zhu

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Research on distribution route with time window and on-board constraint based on tabu search algorithm

In order to solve the problem of the optimization of delivery and pickup cargoes’ routes with time windows under the constraints of load and road, the method and algorithm were designed and researched based on these factors. Firstly, the model was …

Autoren:
Chenglin Ma, Yanyan Yang, Lihai Wang, Chu Chu, Chao Ma, Lihua An

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Research on trust mechanism of cooperation innovation with big data processing based on blockchain

In recent years, the status of cooperation and innovation has become increasingly important. Research on the behavior of production, education, and research organizations has attracted widespread attention. Blockchain technology is considered as …

Autoren:
Qi Liu, Xiao Zou

01.12.2019 | Research | Ausgabe 1/2019 Open Access

SCOPE: self-adaptive and policy-based data management middleware for federated clouds

A federated cloud storage setup which integrates and utilizes storage resources from multiple cloud storage providers has become an increasingly popular and attractive paradigm for the persistence tier in cloud-based applications (e.g., SaaS …

Autoren:
Ansar Rafique, Dimitri Van Landuyt, Eddy Truyen, Vincent Reniers, Wouter Joosen

01.12.2019 | Regular article | Ausgabe 1/2019 Open Access

Nowcasting earthquake damages with Twitter

The Modified Mercalli intensity scale (Mercalli scale for short) is a qualitative measure used to express the perceived intensity of an earthquake in terms of damages. Accurate intensity reports are vital to estimate the type of emergency response …

Autoren:
Marcelo Mendoza, Bárbara Poblete, Ignacio Valderrama

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

A spatial framework for Planning station-based bike sharing systems

Bike sharing systems (BSS) experience a tremendous boom in cities around the globe. Although bike sharing systems have existed for decades, large cities launched extensive systems and helped bike sharing systems to achieve a global breakthrough [ …

Autoren:
Martin Loidl, Ursula Witzmann-Müller, Bernhard Zagel

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Dragomir and Gosa type inequalities on b-metric spaces

In this paper, we investigate Dragomir and Gosa type inequalities in the setting of b-metric spaces. As an application, we consider some inequalities in b-normed spaces. We prove that the inequalities admit geometrical interpretation.

Autoren:
Erdal Karapınar, Maha Noorwali

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Visual sensor image enhancement based on non-sub-sampled shearlet transform and phase stretch transform

Acquiring clear images is a requisite in visual sensor networks. Image enhancement is an effective way to improve image quality. In this paper, non-sub-sampled shearlet transform (NSST) multi-scale analysis is combined with phase stretch transform …

Autor:
Ying Tong

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A multi-task approach to face deblurring

Image deblurring is a foundational problem with numerous application, and the face deblurring subject is one of the most interesting branches. We propose a convolutional neural network (CNN)-based architecture that embraces multi-scale deep …

Autoren:
Ziyi Shen, Tingfa Xu, Jizhou Zhang, Jie Guo, Shenwang Jiang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Uplink achievable rate in underlay random access OFDM-based cognitive radio networks

This paper investigates the uplink achievable rate of secondary users (SUs) in underlay orthogonal frequency division multiplexing based cognitive radio networks, where the SUs randomly access the subcarriers of the primary network. In practice …

Autoren:
Han-Bae Kong, Sabit Ekin, Erchin Serpedin, Khalid A. Qaraqe

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Feature selection and extraction in spatiotemporal traffic forecasting: a systematic literature review

A spatiotemporal approach that simultaneously utilises both spatial and temporal relationships is gaining scientific interest in the field of traffic flow forecasting. Accurate identification of the spatiotemporal structure (dependencies amongst …

Autor:
Dmitry Pavlyuk

01.12.2019 | Original Paper | Ausgabe 1/2019 Open Access

Intermodal transportation of full and empty containers in harbor-inland regions based on revenue management

The road freight transport is successful in in Europe, but it also brings congestion and environmental problems. The European Conference of Ministers of Transport (ECMT) proposes the intermodal transport for the sustainability. Container, as a …

Autoren:
Zixuan Peng, Huaizhu Wang, Wensi Wang, Yonglei Jiang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Investigation of the construction of intelligent logistics system from traditional logistics model based on wireless network technology

With the continuous development of science and technology, wireless network technology has played an important role in the construction of intelligent logistics system. Under this background, based on the wireless network technology, the …

Autoren:
Quan Ouyang, Jun Zheng, Shunlin Wang

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Better than Rician: modelling millimetre wave channels as two-wave with diffuse power

This contribution provides experimental evidence for the two-wave with diffuse power (TWDP) fading model. We have conducted two indoor millimetre wave measurement campaigns with directive horn antennas at both link ends. One horn antenna is …

Autoren:
Erich Zöchmann, Sebastian Caban, Christoph F. Mecklenbräuker, Stefan Pratschner, Martin Lerch, Stefan Schwarz, Markus Rupp

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Certain inequalities for the modified Bessel-type function

We establish some new inequalities for the modified Bessel-type function λ ν , σ ( β ) ( x ) $\lambda _{\nu ,\sigma }^{(\beta )} (x )$ studied by Glaeske et al. [in J. Comput. Appl. Math. 118(1–2):151–168, 2000] as the kernel of an integral …

Autoren:
Min-Jie Luo, Ravinder Krishna Raina

01.12.2019 | Research | Ausgabe 1/2019 Open Access

MRCS: matrix recovery-based communication-efficient compressive sampling on temporal-spatial data of dynamic-scale sparsity in large-scale environmental IoT networks

In the past few years, a large variety of IoT applications has been witnessed by fast proliferation of IoT devices (e.g., environment surveillance devices, wearable devices, city-wide NB-IoT devices). However, launching data collection from these …

Autoren:
Zhonghu Xu, Linjun Zhang, Jinqi Shen, Hao Zhou, Xuefeng Liu, Jiannong Cao, Kai Xing

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A cooperative spectrum sensing method based on information geometry and fuzzy c-means clustering algorithm

To improve spectrum sensing performance, a cooperative spectrum sensing method based on information geometry and fuzzy c-means clustering algorithm is proposed in this paper. In the process of signal feature extraction, a feature extraction method …

Autoren:
Shunchao Zhang, Yonghua Wang, Jiangfan Li, Pin Wan, Yongwei Zhang, Nan Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

A restriction estimate for a class of oscillatory integral operators along paraboloid

In this paper we establish a restriction estimate for a class of oscillatory integral operators along a paraboloid, P d − 1 : = { ( x 1 , … , x d ) : x d = x 1 2 + ⋯ + x d − 1 2 } . $$ {\mathbb{P}^{d-1}:=\bigl\{ (x_{1},\ldots …

Autoren:
Shaozhen Xu, Wenjuan Li

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Lyapunov-type inequalities for nonlinear fractional differential equations and systems involving Caputo-type fractional derivatives

A Lyapunov-type inequality is derived for a nonlinear fractional boundary value problem involving Caputo-type fractional derivative. The obtained inequality provides a necessary condition for the existence of nontrivial solutions to the considered …

Autoren:
Mohamed Jleli, Bessem Samet, Yong Zhou

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Energy-aware VM placement algorithms for the OpenStack Neat consolidation framework

One of the main challenges in cloud computing is an enormous amount of energy consumed in data-centers. Several researches have been conducted on Virtual Machine(VM) consolidation to optimize energy consumption. Among the proposed VM …

Autoren:
Fikru Feleke Moges, Surafel Lemma Abebe

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Optimal deployment of components of cloud-hosted application for guaranteeing multitenancy isolation

One of the challenges of deploying multitenant cloud-hosted services that are designed to use (or be integrated with) several components is how to implement the required degree of isolation between the components when there is a change in the …

Autoren:
Laud Charles Ochei, Andrei Petrovski, Julian M. Bass
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