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Spectrum sensing, which aims at detecting spectrum holes, is the precondition for the implementation of cognitive radio (CR). Collaborative spectrum sensing among the cognitive radio nodes is expected to improve the ability of checking…

Information Theory · Computer Science 2015-11-23 Jia Meng , Wotao Yin , Husheng Li , Ekram Hossain , Zhu Han

Collaborative Filtering (CF) has emerged as fundamental paradigms for parameterizing users and items into latent representation space, with their correlative patterns from interaction data. Among various CF techniques, the development of…

Information Retrieval · Computer Science 2022-04-29 Lianghao Xia , Chao Huang , Yong Xu , Jiashu Zhao , Dawei Yin , Jimmy Xiangji Huang

Writing messages is key to expressing feelings. This study adopts cognitive network science to reconstruct how individuals report their feelings in clinical narratives like suicide notes or mental health posts. We achieve this by…

Computation and Language · Computer Science 2021-11-01 Simmi Marina Joseph , Salvatore Citraro , Virginia Morini , Giulio Rossetti , Massimo Stella

For many years, the emotion recognition task has remained one of the most interesting and important problems in the field of human-computer interaction. In this study, we consider the emotion recognition task as a classification as well as…

Computer Vision and Pattern Recognition · Computer Science 2020-06-22 Denis Rangulov , Muhammad Fahim

Collaborative filtering systems heavily depend on user feedback expressed in product ratings to select and rank items to recommend. In this study we explore how users value different collaborative explanation styles following the user-based…

Information Retrieval · Computer Science 2018-09-07 Ludovik Coba , Markus Zanker , Laurens Rook , Panagiotis Symeonidis

Emotional support conversations require more than fluent responses. Supporters need to understand the seeker's situation and emotions, adopt an appropriate strategy, and respond in a natural, human-like manner. Despite advances in large…

Computation and Language · Computer Science 2026-04-10 Yunxiao Wang , Meng Liu , Kaiyu Jiang , Bin Wen , Fan Yang , Tingting Gao , Lizi Liao

Functional magnetic resonance (fMRI) is an invaluable tool in studying cognitive processes in vivo. Many recent studies use functional connectivity (FC), partial correlation connectivity (PC), or fMRI-derived brain networks to predict…

Neurons and Cognition · Quantitative Biology 2023-08-04 Anton Orlichenko , Gang Qu , Kuan-Jui Su , Anqi Liu , Hui Shen , Hong-Wen Deng , Yu-Ping Wang

Video-based Affective Computing (VAC), vital for emotion analysis and human-computer interaction, suffers from model instability and representational degradation due to complex emotional dynamics. Since the meaning of different emotional…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Feng-Qi Cui , Jinyang Huang , Sirui Zhao , Xinyu Li , Xin Yan , Ziyu Jia , Xiaokang Zhou

The latent knowledge in the emotions and the opinions of the individuals that are manifested via social networks are crucial to numerous applications including social management, dynamical processes, and public security. Affective…

Machine Learning · Computer Science 2021-06-04 Sara Kamran , Raziyeh Zall , Mohammad Reza Kangavari , Saeid Hosseini , Sana Rahmani , Wen Hua

Collaborative filtering generates recommendations by exploiting user-item similarities based on rating data, which often contains numerous unrated items. To predict scores for unrated items, matrix factorization techniques such as…

Statistical Mechanics · Physics 2025-07-30 Yukino Terui , Yuka Inoue , Yohei Hamakawa , Kosuke Tatsumura , Kazue Kudo

Two main challenges in recommender systems are modeling users with heterogeneous taste, and providing explainable recommendations. In this paper, we propose the neural Attentive Multi-Persona Collaborative Filtering (AMP-CF) model as a…

Information Retrieval · Computer Science 2020-10-15 Oren Barkan , Yonatan Fuchs , Avi Caciularu , Noam Koenigstein

There is a mismatch between psychological and computational studies on emotions. Psychological research aims at explaining and documenting internal mechanisms of these phenomena, while computational work often simplifies them into labels.…

Computation and Language · Computer Science 2026-02-03 Enrica Troiano , Sofie Labat , Marco Antonio Stranisci , Viviana Patti , Rossana Damiano , Roman Klinger

There are threefold challenges in emotion recognition. First, it is difficult to recognize human's emotional states only considering a single modality. Second, it is expensive to manually annotate the emotional data. Third, emotional data…

Signal Processing · Electrical Eng. & Systems 2018-08-08 Changde Du , Changying Du , Hao Wang , Jinpeng Li , Wei-Long Zheng , Bao-Liang Lu , Huiguang He

Background: Automated emotion classification could aid those who struggle to recognize emotions, including children with developmental behavioral conditions such as autism. However, most computer vision emotion recognition models are…

Implicit sentiment analysis is challenging because sentiment toward an aspect is often inferred from events rather than expressed through explicit opinion words. Existing models typically learn from the final polarity label, which provides…

Computation and Language · Computer Science 2026-05-21 Yaping Chai , Haoran Xie , Joe S. Qin

Speech Emotion Recognition (SER) refers to the recognition of human emotions from natural speech. If done accurately, it can offer a number of benefits in building human-centered context-aware intelligent systems. Existing SER approaches…

Machine Learning · Computer Science 2022-02-08 Vasileios Tsouvalas , Tanir Ozcelebi , Nirvana Meratnia

Federated Learning is an emerging distributed collaborative learning paradigm adopted by many of today's applications, e.g., keyboard prediction and object recognition. Its core principle is to learn from large amount of users data while…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-11-16 Jiyue Huang , Rania Talbi , Zilong Zhao , Sara Boucchenak , Lydia Y. Chen , Stefanie Roos

Attribute-aware CF models aims at rating prediction given not only the historical rating from users to items, but also the information associated with users (e.g. age), items (e.g. price), or even ratings (e.g. rating time). This paper…

Information Retrieval · Computer Science 2018-10-23 Wen-Hao Chen , Chin-Chi Hsu , Yi-An Lai , Vincent Liu , Mi-Yen Yeh , Shou-De Lin

Many of the traditional recommendation algorithms are designed based on the fundamental idea of mining or learning correlative patterns from data to estimate the user-item correlative preference. However, pure correlative learning may lead…

Information Retrieval · Computer Science 2023-08-15 Shuyuan Xu , Yingqiang Ge , Yunqi Li , Zuohui Fu , Xu Chen , Yongfeng Zhang

Stylized image captioning systems aim to generate a caption not only semantically related to a given image but also consistent with a given style description. One of the biggest challenges with this task is the lack of sufficient paired…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Guodun Li , Yuchen Zhai , Zehao Lin , Yin Zhang