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2019 | Buch

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Computational Science/Intelligence & Applied Informatics

herausgegeben von: Prof. Dr. Roger Lee

Verlag: Springer International Publishing

Buchreihe : Studies in Computational Intelligence

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik" , Springer Professional "Wirtschaft"

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Über dieses Buch

This book presents the outcomes of the 5th ACIS International Conference on Computational Science/Intelligence & Applied Informatics (CSII 2018), which was held on July 10–12, 2018 in Yonago, Japan. The aim of the conference was to bring together researchers and scientists, businesspeople and entrepreneurs, teachers, engineers, computer users, and students to discuss the various fields of computer science, to share their experiences, and to exchange new ideas and information in a meaningful way. All aspects (theory, applications and tools) of computer and information science, the practical challenges encountered along the way, and the solutions adopted to solve them are all explored here.

The conference organizers selected the best papers from among those accepted for presentation. The papers were chosen on the basis of review scores submitted by members of the program committee and subsequently underwent further rigorous review. Following this second round of review, 13 of the conference’s most promising papers were selected for this Springer (SCI) book. We eagerly await the important contributions that we know these authors will make to the field of computer and information science.

Inhaltsverzeichnis

Frontmatter

GUI Testing for Introductory Object-Oriented Programming Exercises

Abstract

Automated testing is necessary in large classrooms where many students learn a programming language. This paper presents a method to test and score student programs with graphical user interfaces written in JavaFX. The method is based on scripts that analyzes the structure of programs under test and simulates user’s interactions. We implemented several utility methods to write the testing scripts easy. No additional software library is required to run the scripts. Preliminary evaluation results are shown on the developing and executing of scripts for real exercises in our introductory programming classrooms.

Ushio Inoue

Python Deserialization Denial of Services Attacks and Their Mitigations

Abstract

In recent years, many vulnerabilities in deserialization mechanisms are reported. Serialization is converting an object to a byte string, and deserialization is converting the byte string to the object. Pickle is a serialization/deserialization module in Python standard library. In the pickle module, specially-crafted data consumes huge memory in deserialization. There is a possibility that the memory consumption leads to deniable of services attacks. This paper precisely describes the DoS attacks and their mitigations.

Kousei Tanaka, Taiichi Saito

A Branch-and-Bound Based Exact Algorithm for the Maximum Edge-Weight Clique Problem

Abstract

The maximum edge-weight clique problem is to find a clique whose sum of edge-weight is maximum for a given edge-weighted undirected graph. The problem is NP-hard and was formulated as a mathematical programming problem in previous studies. In this paper, we propose an exact algorithm based on branch-and-bound. By some computational experiments, we confirmed our proposal algorithm is faster than the methods based on mathematical programming.

Satoshi Shimizu, Kazuaki Yamaguchi, Sumio Masuda

A Software Model for Precision Agriculture Framework Based on Smart Farming System and Application of IoT Gateway

Abstract

Contemporary society is seriously threatened with food as part of the world due to the continuous increase in world population, the degradation and decline of agricultural lands due to high industrialization, climate change and the aging of the population. Therefore, modern society is studying different solutions to solve human food. In this paper, a framework for precision agriculture using IoT Gateway is proposed for solving human food, and the productivity of crops must be increased first. IoT solution through architecture, platforms and IoT standards, or the use of interoperable IoT technologies beyond the adopters in particular, simplifying existing proposals. Connecting different sensors, connected devices, developing intelligent breeding systems as much as possible. One of our aims is to manage and challenges. We provide a techniques and technologies applications during our work. The result shows that the advantages of various types of sensors for agriculture services in their decision making. And a proposed architecture for Agriculture Mobile services based on Sensor Cloud substructure that helps farms and IoT applications are effective in intelligent farming system.

Symphorien Karl Yoki Donzia, Haeng-Kon Kim, Ha Jin Hwang

Components of Mobile Integration in Social Business and E-commerce Application

Abstract

E-commerce and Social Business solutions are developed through the integration of different components. Distributed software agents are very promising in developing an increasingly penetrating component and middleware technology. Agents are specialized types of components that offer greater flexibility than traditional components. This study focuses on the development of a software agent that could be used to assemble different types of frameworks written and constructed by different developers from different platforms. This paper proposed an application of mobile integration components in social enterprise and e-commerce as a software development methodology to simply integrate different basic components of the technology into a single web-based solution. We propose a systematic development process for the software agent using components and UML. We first developed the agent component specification and modeled it. Based on this, we developed a mobile application for social business applications. We integrate the module-based software framework into Drupal’s content management system.

Mechelle Grace Zaragoza, Haeng-Kon Kim, Youn Ky Chung

Design and Evaluation of a MMO Game Server

Abstract

Many large-scale online genre games such as Massive Multi-player Online Role Playing Game (MMORPG) are attracting attention in the game market. In a game server connected to hundreds or thousands of users, a large number of packets come and go between the server and the client in real time. For the server to endure these loads, IOCP (Input/Output Completion Port) and multi-thread are necessary. This paper implements a simple MMO Game Server using IOCP and evaluates its performance. Also, IOCP packet design and processing method are presented. The Simple MMO Game Server implemented in this paper also supports multi-thread synchronization and dead reckoning.

Youngsik Kim, Ki-Nam Kim

A Study on the Characteristics of Electroencephalography (EEG) by Listening Location of OLED Flat TV Speaker

Abstract

Along with the development in OLED TV panel manufacturing technology, the thickness of the panel is thinned, and the durability is also improved. It is also possible to generate sound by directly driving the panel. In this study, we have analyzed the acoustic characteristics of a directly driving the OLED panel speakers, using electroencephalography (EEG), in addition study the advantages of direct driving sound. For the experiment, we found that it is important that the two focal points coincide with each other through the EEG analysis when the focus of the screen and the focus of the sound are changed by adjusting the sound generated by the position in the OLED flat panel TV speaker. OLED TV with direct drive speakers has a basic effect of matching the positions of the screen and sound. This is because the direction of the sound and the direction of the screen coincide with the viewers of the TV, so that the stress is less and the viewing is comfortable compared to the conventional TV. The acoustic characteristics of proposed OLED speakers are high in resolution. And the sound quality is better than ordinary TVs, because of direct transferred sound instead of listening to reflections or difference sound sources compared with.

Hyungwoo Park, Sangbum Park, Myung-Jin Bae

A Study on the Design of Efficient Private Blockchain

Abstract

Blockchain is the key innovative new technology of the future for which interest is being increased domestically and overseas as an icon of innovation to change the existing business process. The Blockchain has started as a public Blockchain first, allowing anybody to participate in the Blockchain network to view all history, and anybody to verify transaction history. However, as proved by bitcoin, the open-type distributed ledger has several technical and positive problems. There exist several disadvantages where much resource should be incorporated to maintain and manage the network with unspecified many participating, internal information is disclosed, processing speed is slow, and anonymity of transactions should be guaranteed, etc. The private Blockchain technology that overcomes such limitations and configures a distributed network with only certified participants as the subject is being magnified. In the present article, issues of a reliable private Blockchain will be derived and design measures be proposed to make a contribution so as to enable safe utilization in the environment of P2P distributed network.

Ki Ho Kwak, Jun Taek Kong, Sung In Cho, Huy Tung Phuong, Gwang Yong Gim

Designing System Model to Detect Malfunction of Gas Sensor in Laboratory Environment

Abstract

Recently, the size of the chemical industry has been growing as well as investing a lot of time and resources to develop core technologies and cultivate human resources. As a result, the handling of chemicals is increasing and the risks are increasing. In particular, there is always the problem of the occurrence of chemical accidents due to the failure of control or management. To prevent this, a disaster detection system using sensors is actively under study. However, the gas sensor among the disaster detection sensors is malfunction due to the influence of the temperature and the humidity. Therefore, in this paper, we collect correlation data of temperature sensor and gas sensor to prevent this. After confirming the correlation through correlation analysis, we calculate regression coefficient by regression analysis and obtain regression equation that can extract sample values of gas sensor data and temperature sensor data. Through this formula, a threshold value that can detect the error value of the gas sensor data is obtained and applied to the decision tree to design a system that can detect the malfunction of the gas sensor according to the temperature change.

Ki-Su Yoon, Seoung-Hyeon Lee, Jae-Pil Lee, Jae-Kwang Lee

Design of Device Mutual Authentication Protocol in Smart Home Environment

Abstract

Amid the rapid expansion of smart devices including smartphone in our daily lives, more and more households have been adopting new forms of Smart Home services by linking home electronics with their smart devices. This kind of Smart Home services are aimed to make people’s personal spaces more comfortable and convenient. However, the connection among many smart devices could lead to a situation in which the devices could be controlled by third parties through malware, unauthenticated access or hacking, increasing the risk of device modulation, privacy invasion, and date leak. Therefore, it is imperative to come up with some security requirements. There is a problem of the existing home network system: it allows multiple ways of protocol, making it impossible for devices with different protocols to be connected and provide safe services. Also, the whole system would stop if a system component does not work in the server-based platform. This paper will suggest a security protocol for device/user authentication and access control in order to enable easy and convenient compatibility services. In addition, it gives you a way to establish a safe and secure framework thorough the protocol suggested.

Jae-Pil Lee, Seoung-Hyeon Lee, Jae-Gwang Lee, Jae-Kwang Lee

A Study of Groupthink in Online Community

Abstract

Groupthink phenomenon is getting a lot of consideration and many authors have studied about it in the historical research. Base on the development of information technology, people can study, entertain and work together in online communities on the Internet. Consequently, this paper studies about Groupthink phenomenon that can affect the decision-making quality of online communities in Korea. This empirical study towards the respondents was in Korea who currently participate online communities. The total number of surveys collected 285 samples, after removing the invalid samples, and 249 samples were used to conduct the analysis. Our analysis shows that organizational structural faults does not affect overestimation of the group, cohesion of a group also does not affect closed-mindedness and overestimation of the group also does not affect symptoms of defective decision-making. The results achieved in this study are potentially essential for future researches for online communities.

Nhu-Quynh Phan, Seok-Hee Lee, Jin Won Jang, Gwang Yong Gim

Development of a Physical Security Gateway for Connectivity to Smart Media in a Hyper-Connected Environment

Abstract

Due to the rapid technological growth of smart media and the rapid spread of convenience through increased convenience, most individuals have smart media, and many person information is stored on a server connected to smart media. As a result, there is always a risk of leakage of personal information, and there is a great need for a method of protecting the personal data of the server from the invasion of the server. In this paper, we propose a method of blocking the intrusion from the external through unidirectional communication method.

Yong-Kyun Kim, Geon Woo Kim, Seoung-Hyeon Lee

Design and Implementation of Security Threat Detection and Access Control System for Connected Car

Abstract

Security vulnerabilities are also increasing as connectivity increases to provide driving stability and convenience for automobiles. In this paper, we design a white list-based access control system to detect and block malicious attempts to access an in-vehicle network through an infotainment device in a connected car environment, and present the implementation results.

Joongyong Choi, Hyeokchan Kwon, Seokjun Lee, Byungho Chung, Seong-il Jin

Backmatter

Titel: Computational Science/Intelligence & Applied Informatics
herausgegeben von: Prof. Dr. Roger Lee
Verlag: Springer International Publishing
Electronic ISBN: 978-3-319-96806-3
Print ISBN: 978-3-319-96805-6
DOI: https://doi.org/10.1007/978-3-319-96806-3