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Heterogeneous graphs can well describe the complex entity relationships in the real world. For example, online shopping networks contain multiple physical types of consumers and products, as well as multiple relationship types such as…

Machine Learning · Computer Science 2024-07-02 Jing Zhang , Xiaoqian Jiang , Yingjie Xie , Cangqi Zhou

Hypergraphs can model higher-order relationships among data objects that are found in applications such as social networks and bioinformatics. However, recent studies on hypergraph learning that extend graph convolutional networks to…

Machine Learning · Computer Science 2024-05-29 Yumeng Song , Yu Gu , Tianyi Li , Jianzhong Qi , Zhenghao Liu , Christian S. Jensen , Ge Yu

In today's interconnected society, social media platforms provide a window into individuals' thoughts, emotions, and mental states. This paper explores the use of platforms like Facebook, X (formerly Twitter), and Reddit for depression…

Artificial Intelligence · Computer Science 2025-10-02 Yusif Ibrahimov , Tarique Anwar , Tommy Yuan , Turan Mutallimov , Elgun Hasanov

Depression is a common disease worldwide. It is difficult to diagnose and continues to be underdiagnosed. Because depressed patients constantly share their symptoms, major life events, and treatments on social media, researchers are turning…

Computation and Language · Computer Science 2025-10-27 Wenli Zhang , Jiaheng Xie , Zhu Zhang , Xiang Liu

Depression, a prevalent and serious mental health issue, affects approximately 3.8\% of the global population. Despite the existence of effective treatments, over 75\% of individuals in low- and middle-income countries remain untreated,…

Computation and Language · Computer Science 2024-07-19 Shengjie Li , Yinhao Xiao

Existing deep learning approaches for image super-resolution, particularly those based on CNNs and attention mechanisms, often suffer from structural inflexibility. Although graph-based methods offer greater representational adaptability,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-09 Qiongyang Hu , Wenyang Liu , Wenbin Zou , Yuejiao Su , Lap-Pui Chau , Yi Wang

Graph neural network, as a powerful graph representation technique based on deep learning, has shown superior performance and attracted considerable research interest. However, it has not been fully considered in graph neural network for…

Social and Information Networks · Computer Science 2021-01-21 Xiao Wang , Houye Ji , Chuan Shi , Bai Wang , Peng Cui , P. Yu , Yanfang Ye

This study investigates the detection and classification of depressive and non-depressive states using deep learning approaches. Depression is a prevalent mental health disorder that substantially affects quality of life, and early…

Quantitative Methods · Quantitative Biology 2026-01-19 Mohammad Reza Yousefi , Hajar Ismail Al-Tamimi , Amin Dehghani

The detection of depression in social media posts is crucial due to the increasing prevalence of mental health issues. Traditional machine learning algorithms often fail to capture intricate textual patterns, limiting their effectiveness in…

Computation and Language · Computer Science 2024-10-01 Marios Kerasiotis , Loukas Ilias , Dimitris Askounis

Graph representation learning (GRL) has emerged as an effective technique for modeling graph-structured data. When modeling heterogeneity and dynamics in real-world complex networks, GRL methods designed for complex heterogeneous temporal…

Social and Information Networks · Computer Science 2026-05-19 Huan Liu , Pengfei Jiao , Mengzhou Gao , Chaochao Chen , Di Jin

Graph-based semi-supervised learning is a fundamental machine learning problem, and has been well studied. Most studies focus on homogeneous networks (e.g. citation network, friend network). In the present paper, we propose the…

Social and Information Networks · Computer Science 2018-07-10 Cheng Ju , James Li , Bram Wasti , Shengbo Guo

Depression has been the leading cause of mental-health illness worldwide. Major depressive disorder (MDD), is a common mental health disorder that affects both psychologically as well as physically which could lead to loss of lives. Due to…

Computer Vision and Pattern Recognition · Computer Science 2019-09-05 Anupama Ray , Siddharth Kumar , Rutvik Reddy , Prerana Mukherjee , Ritu Garg

Heterogeneous graphs (HGs) are composed of multiple types of nodes and edges, making it more effective in capturing the complex relational structures inherent in the real world. However, in real-world scenarios, labeled data is often…

Machine Learning · Computer Science 2025-08-20 Ruobing Jiang , Yacong Li , Haobing Liu , Yanwei Yu

Fake news is pervasive on social media, inflicting substantial harm on public discourse and societal well-being. We investigate the explicit structural information and textual features of news pieces by constructing a heterogeneous graph…

Computation and Language · Computer Science 2024-04-23 Yuchen Zhang , Xiaoxiao Ma , Jia Wu , Jian Yang , Hao Fan

Early detection of suicidal ideation in depressed individuals can allow for adequate medical attention and support, which in many cases is life-saving. Recent NLP research focuses on classifying, from a given piece of text, if an individual…

Machine Learning · Computer Science 2021-06-23 Ayaan Haque , Viraaj Reddi , Tyler Giallanza

Heterogeneous Graphs (HGs) effectively model complex relationships in the real world through multi-type nodes and edges. In recent years, inspired by self-supervised learning (SSL), contrastive learning (CL)-based Heterogeneous Graphs…

Machine Learning · Computer Science 2025-05-06 Yu Wang , Lei Sang , Yi Zhang , Yiwen Zhang , Xindong Wu

Graph Neural Networks (GNNs) have become powerful tools in modeling graph-structured data in recommender systems. However, real-life recommendation scenarios usually involve heterogeneous relationships (e.g., social-aware user influence,…

Information Retrieval · Computer Science 2023-03-03 Mengru Chen , Chao Huang , Lianghao Xia , Wei Wei , Yong Xu , Ronghua Luo

Prompt learning has demonstrated impressive efficacy in the fine-tuning of multimodal large models to a wide range of downstream tasks. Nonetheless, applying existing prompt learning methods for the diagnosis of neurological disorder still…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Liang Peng , Songyue Cai , Zongqian Wu , Huifang Shang , Xiaofeng Zhu , Xiaoxiao Li

In the digital era, the prevalence of depressive symptoms expressed on social media has raised serious concerns, necessitating advanced methodologies for timely detection. This paper addresses the challenge of interpretable depression…

Computation and Language · Computer Science 2025-07-10 Loris Belcastro , Riccardo Cantini , Fabrizio Marozzo , Domenico Talia , Paolo Trunfio

Heterogeneous graph neural networks (HGNNs) have powerful capability to embed rich structural and semantic information of a heterogeneous graph into node representations. Existing HGNNs inherit many mechanisms from graph neural networks…

Machine Learning · Computer Science 2023-09-04 Xiaocheng Yang , Mingyu Yan , Shirui Pan , Xiaochun Ye , Dongrui Fan