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Humans possess a remarkable ability to acquire knowledge efficiently and apply it across diverse modalities through a coherent and shared understanding of the world. Inspired by this cognitive capability, we introduce a concept-centric…

Artificial Intelligence · Computer Science 2026-01-26 Yuchong Geng , Ao Tang

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.…

Machine Learning · Computer Science 2020-07-27 Aritra Ghosh , Neil Heffernan , Andrew S. Lan

Camouflaged object detection (COD) aims to segment objects visually embedded in their surroundings, which is a very challenging task due to the high similarity between the objects and the background. To address it, most methods often…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Zhennan Chen , Xuying Zhang , Tian-Zhu Xiang , Ying Tai

As an important and challenging problem in vision-language tasks, referring expression comprehension (REC) generally requires a large amount of multi-grained information of visual and linguistic modalities to realize accurate reasoning. In…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Peihan Miao , Wei Su , Gaoang Wang , Xuewei Li , Xi Li

Representation learning provides new and powerful graph analytical approaches and tools for the highly valued data science challenge of mining knowledge graphs. Since previous graph analytical methods have mostly focused on homogeneous…

Information Retrieval · Computer Science 2019-05-29 Zheng Gao , Gang Fu , Chunping Ouyang , Satoshi Tsutsui , Xiaozhong Liu , Jeremy Yang , Christopher Gessner , Brian Foote , David Wild , Qi Yu , Ying Ding

For modern recommender systems, the use of low-dimensional latent representations to embed users and items based on their observed interactions has become commonplace. However, many existing recommendation models are primarily designed for…

Information Retrieval · Computer Science 2024-12-30 Lianghao Xia , Meiyan Xie , Yong Xu , Chao Huang

The customization of recommended content to users holds significant importance in enhancing user experiences across a wide spectrum of applications such as e-commerce, music, and shopping. Graph-based methods have achieved considerable…

Information Retrieval · Computer Science 2023-12-05 Narges Sadat Fazeli Dehkordi , Hadi Zare , Parham Moradi , Mahdi Jalili

Due to the flexibility in modelling data heterogeneity, heterogeneous information network (HIN) has been adopted to characterize complex and heterogeneous auxiliary data in top-$N$ recommender systems, called \emph{HIN-based…

Information Retrieval · Computer Science 2021-06-15 Hui Wang , Kun Zhou , Wayne Xin Zhao , Jingyuan Wang , Ji-Rong Wen

Multi-object tracking (MOT) is a vital component of intelligent video analytics applications such as surveillance and autonomous driving. The time and storage complexity required to execute deep learning models for visual object tracking…

Computer Vision and Pattern Recognition · Computer Science 2022-10-28 Keivan Nalaie , Rong Zheng

Due to the development of graph neural networks, graph-based representation learning methods have made great progress in recommender systems. However, data sparsity is still a challenging problem that most graph-based recommendation methods…

Information Retrieval · Computer Science 2021-10-25 Chaoyang Wang , Zhiqiang Guo , Guohui Li , Jianjun Li , Peng Pan , Ke Liu

Learning high-quality multi-modal entity representations is an important goal of multi-modal knowledge graph (MMKG) representation learning, which can enhance reasoning tasks within the MMKGs, such as MMKG completion (MMKGC). The main…

Artificial Intelligence · Computer Science 2025-04-08 Yichi Zhang , Zhuo Chen , Lingbing Guo , Yajing Xu , Binbin Hu , Ziqi Liu , Wen Zhang , Huajun Chen

Multistep traffic forecasting on road networks is a crucial task in successful intelligent transportation system applications. To capture the complex non-stationary temporal dynamics and spatial dependency in multistep traffic-condition…

Machine Learning · Computer Science 2018-10-30 Zhengchao Zhang , Meng Li , Xi Lin , Yinhai Wang , Fang He

Incorporating Knowledge Graphs into Recommendation has attracted growing attention in industry, due to the great potential of KG in providing abundant supplementary information and interpretability for the underlying models. However, simply…

Information Retrieval · Computer Science 2024-06-03 Ding Zou , Wei Wei , Feida Zhu , Chuanyu Xu , Tao Zhang , Chengfu Huo

Learning distributed node representations in networks has been attracting increasing attention recently due to its effectiveness in a variety of applications. Existing approaches usually study networks with a single type of proximity…

Social and Information Networks · Computer Science 2017-09-21 Meng Qu , Jian Tang , Jingbo Shang , Xiang Ren , Ming Zhang , Jiawei Han

Heterogeneous graph neural networks have seen rapid progress in web applications such as social networks, knowledge graphs, and recommendation systems, driven by the inherent heterogeneity of web data. However, existing methods typically…

Machine Learning · Computer Science 2025-10-21 Guiquan Sun , Xikun Zhang , Jingchao Ni , Dongjin Song

Bundle recommendation aims to recommend a bundle of items for a user to consume as a whole. Existing solutions integrate user-item interaction modeling into bundle recommendation by sharing model parameters or learning in a multi-task…

Information Retrieval · Computer Science 2020-05-08 Jianxin Chang , Chen Gao , Xiangnan He , Yong Li , Depeng Jin

Conversational Recommender Systems (CRSs) aim to provide personalized recommendations by interacting with users through conversations. Most existing studies of CRS focus on extracting user preferences from conversational contexts. However,…

Information Retrieval · Computer Science 2025-04-28 Yibiao Wei , Jie Zou , Weikang Guo , Guoqing Wang , Xing Xu , Yang Yang

Motivated by the incompleteness of modern knowledge graphs, a new setup for query answering has emerged, where the goal is to predict answers that do not necessarily appear in the knowledge graph, but are present in its completion. In this…

Machine Learning · Computer Science 2026-01-30 Krzysztof Olejniczak , Xingyue Huang , Mikhail Galkin , İsmail İlkan Ceylan

In the contemporary age characterized by information abundance, rapid advancements in artificial intelligence have rendered recommendation systems indispensable. Conventional recommendation methodologies based on collaborative filtering or…

Information Retrieval · Computer Science 2025-09-04 Yu Fang

Meta-learning has been proved to be an effective framework to address few-shot learning problems. The key challenge is how to minimize the generalization error of base learner across tasks. In this paper, we explore the concept hierarchy…

Computer Vision and Pattern Recognition · Computer Science 2021-05-12 Baoquan Zhang , Ka-Cheong Leung , Yunming Ye , Xutao Li