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This paper addresses key challenges in enhancing recommendation systems by leveraging Graph Neural Networks (GNNs) and addressing inherent limitations such as over-smoothing, which reduces model effectiveness as network hierarchy deepens.…

Information Retrieval · Computer Science 2024-12-05 Wenyi Liu , Ziqi Zhang , Xinshi Li , Jiacheng Hu , Yuanshuai Luo , Junliang Du

In this work, we study group recommendation in a particular scenario, namely Occasional Group Recommendation (OGR). Most existing works have addressed OGR by aggregating group members' personal preferences to learn the group representation.…

Information Retrieval · Computer Science 2021-05-10 Lei Guo , Hongzhi Yin , Tong Chen , Xiangliang Zhang , Kai Zheng

Multimodal learning aims to capture both shared and private information from multiple modalities. However, existing methods that project all modalities into a single latent space for fusion often overlook the asynchronous, multi-level…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Chunlei Meng , Guanhong Huang , Rong Fu , Runmin Jian , Zhongxue Gan , Chun Ouyang

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

Generative Recommenders (GRs), exemplified by the Hierarchical Sequential Transduction Unit (HSTU), have emerged as a powerful paradigm for modeling long user interaction sequences. However, we observe that their "flat-sequence" assumption…

Information Retrieval · Computer Science 2026-03-03 Zerui Chen , Heng Chang , Tianying Liu , Chuantian Zhou , Yi Cao , Jiandong Ding , Ming Liu , Bing Qin

Learning the manifold structure of remote sensing images is of paramount relevance for modeling and understanding processes, as well as to encapsulate the high dimensionality in a reduced set of informative features for subsequent…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Gulsen Taskin , Gustau Camps-Valls

Recommendation systems have become popular and effective tools to help users discover their interesting items by modeling the user preference and item property based on implicit interactions (e.g., purchasing and clicking). Humans perceive…

Information Retrieval · Computer Science 2023-02-10 Hongyu Zhou , Xin Zhou , Zhiwei Zeng , Lingzi Zhang , Zhiqi Shen

Multimodal learning, which integrates data from diverse sensory modes, plays a pivotal role in artificial intelligence. However, existing multimodal learning methods often struggle with challenges where some modalities appear more dominant…

Machine Learning · Computer Science 2024-04-02 Xiaohui Zhang , Jaehong Yoon , Mohit Bansal , Huaxiu Yao

In this paper, we tackle two challenges in multimodal learning for visual recognition: 1) when missing-modality occurs either during training or testing in real-world situations; and 2) when the computation resources are not available to…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Yi-Lun Lee , Yi-Hsuan Tsai , Wei-Chen Chiu , Chen-Yu Lee

Generative recommendation aims to learn the underlying generative process over the entire item set to produce recommendations for users. Although it leverages non-linear probabilistic models to surpass the limited modeling capacity of…

Information Retrieval · Computer Science 2025-04-24 Yi Zhang , Yiwen Zhang , Yu Wang , Tong Chen , Hongzhi Yin

Multi-modal knowledge graph completion (MMKGC) aims to discover missing facts in multi-modal knowledge graphs (MMKGs) by leveraging both structural relationships and diverse modality information of entities. Existing MMKGC methods follow…

Computation and Language · Computer Science 2026-04-20 Zhiqiang Liu , Yichi Zhang , Mengshu Sun , Lei Liang , Wen Zhang

Many learning tasks involve multi-modal data streams, where continuous data from different modes convey a comprehensive description about objects. A major challenge in this context is how to efficiently interpret multi-modal information in…

Machine Learning · Computer Science 2020-07-24 Amila Silva , Shanika Karunasekera , Christopher Leckie , Ling Luo

Large Language Models (LLMs) have been shown to enhance the effectiveness of enriching item descriptions, thereby improving the accuracy of recommendation systems. However, most existing approaches either rely on text-only prompting or…

Information Retrieval · Computer Science 2025-10-24 Hanjia Lyu , Ryan Rossi , Xiang Chen , Md Mehrab Tanjim , Stefano Petrangeli , Somdeb Sarkhel , Jiebo Luo

Multimodality Representation Learning, as a technique of learning to embed information from different modalities and their correlations, has achieved remarkable success on a variety of applications, such as Visual Question Answering (VQA),…

Artificial Intelligence · Computer Science 2024-03-04 Muhammad Arslan Manzoor , Sarah Albarri , Ziting Xian , Zaiqiao Meng , Preslav Nakov , Shangsong Liang

Existing works based on molecular knowledge neglect the 3D geometric structure of molecules and fail to learn the high-dimensional information of medications, leading to structural confusion. Additionally, it does not extract key…

Machine Learning · Computer Science 2024-11-13 Shi Mu , Chen Li , Xiang Li , Shunpan Liang

Massive open online courses are becoming a modish way for education, which provides a large-scale and open-access learning opportunity for students to grasp the knowledge. To attract students' interest, the recommendation system is applied…

Machine Learning · Computer Science 2020-06-25 Shen Wang , Jibing Gong , Jinlong Wang , Wenzheng Feng , Hao Peng , Jie Tang , Philip S. Yu

Recent advances in Large Language Models (LLMs) have opened new possibilities for recommendation systems, though current approaches such as TALLRec face challenges in explainability and cold-start scenarios. We present ExplainRec, a…

Information Retrieval · Computer Science 2025-11-20 Bo Ma , LuYao Liu , ZeHua Hu , Simon Lau

MultiModal Recommendation (MMR) systems have emerged as a promising solution for improving recommendation quality by leveraging rich item-side modality information, prompting a surge of diverse methods. Despite these advances, existing…

Information Retrieval · Computer Science 2025-08-25 Xiaoxiong Zhang , Xin Zhou , Zhiwei Zeng , Yongjie Wang , Dusit Niyato , Zhiqi Shen

The recommender system (RS) has been an integral toolkit of online services. They are equipped with various deep learning techniques to model user preference based on identifier and attribute information. With the emergence of multimedia…

Information Retrieval · Computer Science 2024-09-05 Qidong Liu , Jiaxi Hu , Yutian Xiao , Xiangyu Zhao , Jingtong Gao , Wanyu Wang , Qing Li , Jiliang Tang

Multimodal representations and continual learning are two areas closely related to human intelligence. The former considers the learning of shared representation spaces where information from different modalities can be compared and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Kai Wang , Luis Herranz , Joost van de Weijer