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Knowledge tracing (KT) refers to the problem of predicting future learner performance given their past performance in educational applications. Recent developments in KT using flexible deep neural network-based models excel at this task.…

机器学习 · 计算机科学 2020-07-27 Aritra Ghosh , Neil Heffernan , Andrew S. Lan

Dynamic graph embedding has emerged as a very effective technique for addressing diverse temporal graph analytic tasks (i.e., link prediction, node classification, recommender systems, anomaly detection, and graph generation) in various…

机器学习 · 计算机科学 2023-12-27 Alan John Varghese , Aniruddha Bora , Mengjia Xu , George Em Karniadakis

Emotion recognition plays a crucial role in human-computer interaction, and electroencephalography (EEG) is advantageous for reflecting human emotional states. In this study, we propose MACTN, a hierarchical hybrid model for jointly…

信号处理 · 电气工程与系统科学 2023-05-30 Xiaopeng Si , Dong Huang , Yulin Sun , Dong Ming

Multivariate time series analysis is becoming an integral part of data analysis pipelines. Understanding the individual time point connections between covariates as well as how these connections change in time is non-trivial. To this aim,…

机器学习 · 统计学 2021-02-04 Federico Ciech , Veronica Tozzo

Modeling time-evolving knowledge graphs (KGs) has recently gained increasing interest. Here, graph representation learning has become the dominant paradigm for link prediction on temporal KGs. However, the embedding-based approaches largely…

机器学习 · 计算机科学 2021-04-02 Zhen Han , Peng Chen , Yunpu Ma , Volker Tresp

Recently the deep learning has shown its advantage in representation learning and clustering for time series data. Despite the considerable progress, the existing deep time series clustering approaches mostly seek to train the deep neural…

机器学习 · 计算机科学 2023-01-02 Ying Zhong , Dong Huang , Chang-Dong Wang

While the Self-Attention mechanism in the Transformer model has proven to be effective in many domains, we observe that it is less effective in more diverse settings (e.g. multimodality) due to the varying granularity of each token and the…

计算机视觉与模式识别 · 计算机科学 2024-06-06 Wayner Barrios , SouYoung Jin

Audio and visual signals typically occur simultaneously, and humans possess an innate ability to correlate and synchronize information from these two modalities. Recently, a challenging problem known as Audio-Visual Segmentation (AVS) has…

计算机视觉与模式识别 · 计算机科学 2025-02-11 Yuxuan Wang , Jinchao Zhu , Feng Dong , Shuyue Zhu

Trajectory prediction is fundamental to various intelligent technologies, such as autonomous driving and robotics. The motion prediction of pedestrians and vehicles helps emergency braking, reduces collisions, and improves traffic safety.…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Yao Liu , Binghao Li , Xianzhi Wang , Claude Sammut , Lina Yao

Knowledge graphs contain rich knowledge about various entities and the relational information among them, while temporal knowledge graphs (TKGs) describe and model the interactions of the entities over time. In this context, automatic…

机器学习 · 计算机科学 2022-12-14 Zifeng Ding , Yunpu Ma , Bailan He , Volker Tresp

Temporal Betweenness Centrality (TBC) measures how often a node appears on optimal temporal paths, reflecting its importance in temporal networks. However, exact computation is highly expensive, and real-world TBC distributions are…

机器学习 · 计算机科学 2025-06-18 Tianming Zhang , Renbo Zhang , Zhengyi Yang , Yunjun Gao , Bin Cao , Jing Fan

Most knowledge graph completion (KGC) methods learn latent representations of entities and relations of a given graph by mapping them into a vector space. Although the majority of these methods focus on static knowledge graphs, a large…

机器学习 · 计算机科学 2023-09-29 Duygu Sezen Islakoglu , Mel Chekol , Yannis Velegrakis

Recently Transformer-based models have advanced point cloud understanding by leveraging self-attention mechanisms, however, these methods often overlook latent information in less prominent regions, leading to increased sensitivity to…

计算机视觉与模式识别 · 计算机科学 2024-11-25 Yi Wang , Jiaze Wang , Ziyu Guo , Renrui Zhang , Donghao Zhou , Guangyong Chen , Anfeng Liu , Pheng-Ann Heng

Accurate traffic forecasting is essential for intelligent transportation systems, supporting a wide range of real-world applications. However, it remains challenging due to two key factors:~(1) Traffic series contain heterogeneous temporal…

人工智能 · 计算机科学 2026-05-26 Ruiwen Gu , Qitai Tan , Yahao Liu , Xiao-Ping Zhang

The proliferation of misinformation in the digital age has led to significant societal challenges. Existing approaches often struggle with capturing long-range dependencies, complex semantic relations, and the social dynamics influencing…

计算与语言 · 计算机科学 2025-08-27 Shubham Gupta , Shraban Kumar Chatterjee , Suman Kundu

Short-term future population prediction is a crucial problem in urban computing. Accurate future population prediction can provide rich insights for urban planners or developers. However, predicting the future population is a challenging…

机器学习 · 计算机科学 2022-03-02 Yuki Kubota , Yuki Ohira , Tetsuo Shimizu

Temporal knowledge graph (TKG) reasoning is a crucial task that has gained increasing research interest in recent years. Most existing methods focus on reasoning at past timestamps to complete the missing facts, and there are only a few…

机器学习 · 计算机科学 2021-09-10 Haohai Sun , Jialun Zhong , Yunpu Ma , Zhen Han , Kun He

With the rapid advances of deep learning, many computational methods have been developed to analyze nonlinear and complex right censored data via deep learning approaches. However, the majority of the methods focus on predicting survival…

机器学习 · 计算机科学 2022-02-11 Jong-Hyeon Jeong , Yichen Jia

Temporal Graph Neural Networks (TGNNs) aim to capture the evolving structure and timing of interactions in dynamic graphs. Although many models incorporate time through encodings or architectural design, they often compute attention over…

机器学习 · 计算机科学 2026-02-03 Govind Waghmare , Srini Rohan Gujulla Leel , Nikhil Tumbde , Sumedh B G , Sonia Gupta , Srikanta Bedathur

Precipitation is a key part of hydrological circulation and is a sensitive indicator of climate change. The Integrated Multi-satellitE Retrievals for the Global Precipitation Measurement (GPM) mission (IMERG) datasets are widely used for…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Yinghong Jing , Liupeng Lin , Xinghua Li , Tongwen Li , Huanfeng Shen