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Event detection has been one of the most important research topics in social media analysis. Most of the traditional approaches detect events based on fixed temporal and spatial resolutions, while in reality events of different scales…

Social and Information Networks · Computer Science 2015-08-31 Xiaowen Dong , Dimitrios Mavroeidis , Francesco Calabrese , Pascal Frossard

Disaster events often unfold rapidly, necessitating a swift and effective response. Developing action plans, resource allocation, and resolution of help requests in disaster scenarios is time-consuming and complex since disaster-relevant…

Computers and Society · Computer Science 2024-09-04 Samia Abid , Bhupesh Kumar Mishra , Dhavalkumar Thakker , Nishikant Mishra

Comparative studies of news coverage are challenging to conduct because methods to identify news articles about the same event in different languages require expertise that is difficult to scale. We introduce an AI-powered method for…

Information Retrieval · Computer Science 2025-06-17 Erica Cai , Xi Chen , Reagan Grey Keeney , Ethan Zuckerman , Brendan O'Connor , Przemyslaw A. Grabowicz

To resolve the semantic ambiguity in texts, we propose a model, which innovatively combines a knowledge graph with an improved attention mechanism. An existing knowledge base is utilized to enrich the text with relevant contextual concepts.…

Computation and Language · Computer Science 2024-01-30 Siyu Li , Lu Chen , Chenwei Song , Xinyi Liu

Addressing the challenges related to data sparsity, cold-start problems, and diversity in recommendation systems is both crucial and demanding. Many current solutions leverage knowledge graphs to tackle these issues by combining both…

Information Retrieval · Computer Science 2024-03-28 Yejin Kim , Scott Rome , Kevin Foley , Mayur Nankani , Rimon Melamed , Javier Morales , Abhay Yadav , Maria Peifer , Sardar Hamidian , H. Howie Huang

Recognizing a traffic accident is an essential part of any autonomous driving or road monitoring system. An accident can appear in a wide variety of forms, and understanding what type of accident is taking place may be useful to prevent it…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Aaron Lohner , Francesco Compagno , Jonathan Francis , Alessandro Oltramari

Hypergraphs offer superior modeling capabilities for social networks, particularly in capturing group phenomena that extend beyond pairwise interactions in rumor propagation. Existing approaches in rumor source detection predominantly focus…

Social and Information Networks · Computer Science 2025-06-05 Le Cheng , Peican Zhu , Yangming Guo , Keke Tang , Chao Gao , Zhen Wang

The recent popularity of edge devices and Artificial Intelligent of Things (AIoT) has driven a new wave of contextual recommendations, such as location based Point of Interest (PoI) recommendations and computing resource-aware mobile app…

Information Retrieval · Computer Science 2022-08-23 Sichun Luo , Xinyi Zhang , Yuanzhang Xiao , Linqi Song

Stroke classification remains challenging due to variations in writing style, ambiguous content, and dynamic writing positions. The core challenge in stroke classification is modeling the semantic relationships between strokes. Our…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Yiheng Huang , Shuang She , Zewei Wei , Jianmin Lin , Ming Yang , Wenyin Liu

Massive social media data can reflect people's authentic thoughts, emotions, communication, etc., and therefore can be analyzed for early detection of mental health problems such as depression. Existing works about early depression…

Social and Information Networks · Computer Science 2025-03-04 Chen Chen , Mingwei Li , Fenghuan Li , Haopeng Chen , Yuankun Lin

Disaster mapping is a critical task that often requires on-site experts and is time-consuming. To address this, a comprehensive framework is presented for fast and accurate recognition of disasters using machine learning, termed…

Computer Vision and Pattern Recognition · Computer Science 2023-06-19 Qingsong Xu , Yilei Shi , Xiao Xiang Zhu

Although social media provides a vibrant platform to discuss real-world events, the quantity of information generated can overwhelm decision making based on that information. By better understanding who is participating in information…

Social and Information Networks · Computer Science 2018-10-03 Rahul Pandey , Hemant Purohit , Jennifer Chan , Aditya Johri

Indoor scene classification is a critical task in computer vision, with wide-ranging applications that go from robotics to sensitive content analysis, such as child sexual abuse imagery (CSAI) classification. The problem is particularly…

Computer Vision and Pattern Recognition · Computer Science 2025-10-01 Artur Barros , Carlos Caetano , João Macedo , Jefersson A. dos Santos , Sandra Avila

Autonomous vehicles navigate in dynamically changing environments under a wide variety of conditions, being continuously influenced by surrounding objects. Modelling interactions among agents is essential for accurately forecasting other…

Machine Learning · Computer Science 2021-06-01 Sandra Carrasco , David Fernández Llorca , Miguel Ángel Sotelo

Temporal knowledge graphs, representing the dynamic relationships and interactions between entities over time, have been identified as a promising approach for event forecasting. However, a limitation of most temporal knowledge graph…

Artificial Intelligence · Computer Science 2023-08-30 Yi Xu , Junjie Ou , Hui Xu , Luoyi Fu , Lei Zhou , Xinbing Wang , Chenghu Zhou

Event detection has long been the domain of physical sensors operating in a static dataset assumption. The prevalence of social media and web access has led to the emergence of social, or human sensors who report on events globally. This…

Social and Information Networks · Computer Science 2019-11-14 Abhijit Suprem , Aibek Musaev , Calton Pu

Query-based moment localization is a new task that localizes the best matched segment in an untrimmed video according to a given sentence query. In this localization task, one should pay more attention to thoroughly mine visual and…

Computer Vision and Pattern Recognition · Computer Science 2020-08-14 Daizong Liu , Xiaoye Qu , Xiao-Yang Liu , Jianfeng Dong , Pan Zhou , Zichuan Xu

Fake news detection has become a research area that goes way beyond a purely academic interest as it has direct implications on our society as a whole. Recent advances have primarily focused on textbased approaches. However, it has become…

Computation and Language · Computer Science 2022-12-14 Gregor Donabauer , Udo Kruschwitz

When a damaging earthquake occurs, immediate information about casualties is critical for time-sensitive decision-making by emergency response and aid agencies in the first hours and days. Systems such as Prompt Assessment of Global…

Computation and Language · Computer Science 2023-12-08 Chenguang Wang , Davis Engler , Xuechun Li , James Hou , David J. Wald , Kishor Jaiswal , Susu Xu

Graph clustering is essential in graph analysis for revealing structural patterns and node communities. Despite recent advances in self-supervised contrastive learning that have improved clustering via structural and attribute signals,…

Machine Learning · Computer Science 2026-05-28 Lei Zhang , Fubo Sun , Haipeng Yang , Zhong Guan , Likang Wu