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Journal of Intelligent Information Systems OnlineFirst articles

06.01.2024 | Research

Movie tag prediction: An extreme multi-label multi-modal transformer-based solution with explanation

Providing rich and accurate metadata for indexing media content is a crucial problem for all the companies offering streaming entertainment services. These metadata are commonly employed to enhance search engine results and feed recommendation …

verfasst von:
Massimo Guarascio, Marco Minici, Francesco Sergio Pisani, Erika De Francesco, Pasquale Lambardi

28.12.2023 | Research

TSUNAMI - an explainable PPM approach for customer churn prediction in evolving retail data environments

Retail companies are greatly interested in performing continuous monitoring of purchase traces of customers, to identify weak customers and take the necessary actions to improve customer satisfaction and ensure their revenues remain unaffected. In …

verfasst von:
Vincenzo Pasquadibisceglie, Annalisa Appice, Giuseppe Ieva, Donato Malerba

26.12.2023 | Research

A bayesian-neural-networks framework for scaling posterior distributions over different-curation datasets

In this paper, we propose and experimentally assess an innovative framework for scaling posterior distributions over different-curation datasets, based on Bayesian-Neural-Networks (BNN). Another innovation of our proposed study consists in …

verfasst von:
Alfredo Cuzzocrea, Alessandro Baldo, Edoardo Fadda

12.12.2023 | Research

Audio super-resolution via vision transformer

Audio super-resolution refers to techniques that improve the audio signals quality, usually by exploiting bandwidth extension methods, whereby audio enhancement is obtained by expanding the phase and the spectrogram of the input audio traces.

verfasst von:
Simona Nisticò, Luigi Palopoli, Adele Pia Romano

12.12.2023 | Research

Tell me what you Like: introducing natural language preference elicitation strategies in a virtual assistant for the movie domain

Preference elicitation is a crucial step for every recommendation algorithm. In this paper, we present a strategy that allows users to express their preferences and needs through natural language statements. In particular, our natural language …

verfasst von:
Cataldo Musto, Alessandro Francesco Maria Martina, Andrea Iovine, Fedelucio Narducci, Marco de Gemmis, Giovanni Semeraro

11.12.2023 | Research

How can text mining improve the explainability of Food security situations?

Food Security (FS) is a major concern in West Africa, particularly in Burkina Faso, which has been the epicenter of a humanitarian crisis since the beginning of this century. Early warning systems for FS and famines rely mainly on numerical data …

verfasst von:
Hugo Deléglise, Agnès Bégué, Roberto Interdonato, Elodie Maître d’Hôtel, Mathieu Roche, Maguelonne Teisseire

30.11.2023 | Research

A mutually enhanced multi-scale relation-aware graph convolutional network for argument pair extraction

Argument pair extraction (APE) is a fine-grained task of argument mining which aims to identify arguments offered by different participants in some discourse and detect interaction relationships between arguments from different participants. In …

verfasst von:
Xiaofei Zhu, Yidan Liu, Zhuo Chen, Xu Chen, Jiafeng Guo, Stefan Dietze

28.11.2023 | Research

T-shaped expert mining: a novel approach based on skill translation and focal loss

Hiring knowledgeable and cost-effective individuals, who use their knowledge and expertise to boost the organization, is extremely important for organizations as they are the most valuable assets. T-shaped experts are the best option based on …

verfasst von:
Zohreh Fallahnejad, Mahmood Karimian, Fatemeh Lashkari, Hamid Beigy

Open Access 24.11.2023 | Research

Enhancing anomaly detectors with LatentOut

$${{\textbf{Latent}}\varvec{Out}}$$ Latent Out is a recently introduced algorithm for unsupervised anomaly detection which enhances latent space-based neural methods, namely (Variational) Autoencoders, GANomaly and ANOGan architectures. The main …

verfasst von:
Fabrizio Angiulli, Fabio Fassetti, Luca Ferragina

18.11.2023 | Research

A transformer-based framework for predicting geomagnetic indices with uncertainty quantification

Geomagnetic activities have a crucial impact on Earth, which can affect spacecraft and electrical power grids. Geospace scientists use a geomagnetic index, called the Kp index, to describe the overall level of geomagnetic activity. This index is …

verfasst von:
Yasser Abduallah, Jason T. L. Wang, Haimin Wang, Ju Jing

07.11.2023 | Research

EqBal-RS: Mitigating popularity bias in recommender systems

Recommender systems are deployed heavily by many online platforms for better user engagement and providing recommendations. Despite being so popular, several works have shown the existence of popularity bias due to the non-random nature of missing …

verfasst von:
Shivam Gupta, Kirandeep Kaur, Shweta Jain

06.11.2023 | Research

BMDF-SR: bidirectional multi-sequence decoupling fusion method for sequential recommendation

In the domain of sequence recommendation, contextual information has been shown to effectively improve the accuracy of predicting the user’s next interaction. However, existing studies do not consider the dependencies between contextual …

verfasst von:
Aohua Gao, Jiwei Qin, Chao Ma, Tao Wang

Open Access 03.11.2023 | Research

Finding a needle in a haystack: insights on feature selection for classification tasks

The growth of Big Data has resulted in an overwhelming increase in the volume of data available, including the number of features. Feature selection, the process of selecting relevant features and discarding irrelevant ones, has been successfully …

verfasst von:
Laura Morán-Fernández, Verónica Bolón-Canedo

Open Access 03.11.2023 | Research

Learning autoencoder ensembles for detecting malware hidden communications in IoT ecosystems

Modern IoT ecosystems are the preferred target of threat actors wanting to incorporate resource-constrained devices within a botnet or leak sensitive information. A major research effort is then devoted to create countermeasures for mitigating …

verfasst von:
Nunziato Cassavia, Luca Caviglione, Massimo Guarascio, Angelica Liguori, Marco Zuppelli

01.11.2023 | Research

A novel algorithm for mining couples of enhanced association rules based on the number of output couples and its application

Besides the need for more advanced predictive methods, there is increasing demand for easily interpretable results. Couples of enhanced association rules (a generalization of association rules/apriori/frequent itemsets) are excellent candidates …

verfasst von:
Petr Máša, Jan Rauch

01.11.2023 | Research

Leveraging neighborhood and path information for influential spreaders recognition in complex networks

The study of influential spreaders has become a growing area of interest within network sciences due to its critical implications in understanding the robustness and vulnerability of complex networks. There is a significant degree of focus on the …

verfasst von:
Aman Ullah, JinFang Sheng, Bin Wang, Salah Ud Din, Nasrullah Khan

01.11.2023 | Research

Session-aware recommender system using double deep reinforcement learning

Session-aware recommender systems capture user-specific preferences that emerge within multiple user sessions by leveraging the sequential nature of user interactions. Existing session-aware recommendation methods face challenges in finding the …

verfasst von:
Purnima Khurana, Bhavna Gupta, Ravish Sharma, Punam Bedi

19.10.2023 | Research

I-SFND: a novel interpretable self-ensembled semi-supervised model based on transformers for fake news detection

One of the serious consequences of social media usage is fake information dissemination that locomotes society towards negativity. Existing solutions focus on supervised fake news detection models, which requires extensive labelled data. In this …

verfasst von:
Shivani Sri Varshini U, Praneetha Sree R, Srinivas M, Subramanyam R.B.V.

14.10.2023 | Research

Developing and validating an electronic health record-based frailty index in pre-operative settings using machine learning

Frailty is associated with poor post-operative outcomes. However, frailty assessments in clinical practice are challenging due to the need for more resources and pragmatic complexities. We aimed to create a pre-operative frailty ascertainment …

verfasst von:
Chen Bai, Mohammad Al-Ani, Shawna Amini, Patrick Tighe, Catherine Price, Todd Manini, Mamoun Mardini

25.09.2023 | Research

C-GDN: core features activated graph dual-attention network for personalized recommendation

As a popular graph learning technique, graph neural networks (GNN) show great advantages in the field of personalized recommendation. Existing GNN-based recommendation methods organized user-item interactions (e.g., click, purchase, review, etc.) …

verfasst von:
Xiongtao Zhang, Mingxin Gan