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User and item attributes are essential side-information; their interactions (i.e., their co-occurrence in the sample data) can significantly enhance prediction accuracy in various recommender systems. We identify two different types of…

Information Retrieval · Computer Science 2021-07-26 Yixin Su , Rui Zhang , Sarah Erfani , Junhao Gan

In practical recommendation scenarios, users often interact with items under multi-typed behaviors (e.g., click, add-to-cart, and purchase). Traditional collaborative filtering techniques typically assume that users only have a single type…

Information Retrieval · Computer Science 2023-02-14 Chi Zhang , Rui Chen , Xiangyu Zhao , Qilong Han , Li Li

Explainability and effectiveness are two key aspects for building recommender systems. Prior efforts mostly focus on incorporating side information to achieve better recommendation performance. However, these methods have some weaknesses:…

Information Retrieval · Computer Science 2019-03-12 Weizhi Ma , Min Zhang , Yue Cao , Woojeong , Jin , Chenyang Wang , Yiqun Liu , Shaoping Ma , Xiang Ren

In real-world recommendation scenarios, users engage with items through various types of behaviors. Leveraging diversified user behavior information for learning can enhance the recommendation of target behaviors (e.g., buy), as…

Information Retrieval · Computer Science 2025-02-05 Chenhao Zhai , Chang Meng , Yu Yang , Kexin Zhang , Xuhao Zhao , Xiu Li

Multimodal recommender systems leverage diverse data sources, such as user interactions, content features, and contextual information, to address challenges like cold-start and data sparsity. However, existing methods often suffer from one…

Information Retrieval · Computer Science 2026-02-24 Adamya Shyam , Venkateswara Rao Kagita , Bharti Rana , Vikas Kumar

Personalized recommendation is ubiquitous, playing an important role in many online services. Substantial research has been dedicated to learning vector representations of users and items with the goal of predicting a user's preference for…

Information Retrieval · Computer Science 2020-01-03 Jianing Sun , Yingxue Zhang , Chen Ma , Mark Coates , Huifeng Guo , Ruiming Tang , Xiuqiang He

The rapid expansion of multimedia contents has led to the emergence of multimodal recommendation systems. It has attracted increasing attention in recommendation systems because its full utilization of data from different modalities…

Information Retrieval · Computer Science 2024-12-30 Zheyu Chen , Jinfeng Xu , Haibo Hu

Multi-behavioral recommender systems have emerged as a solution to address data sparsity and cold-start issues by incorporating auxiliary behaviors alongside target behaviors. However, existing models struggle to accurately capture varying…

Information Retrieval · Computer Science 2024-04-18 Zhiyong Cheng , Jianhua Dong , Fan Liu , Lei Zhu , Xun Yang , Meng Wang

We propose the first joint audio-video generation framework that brings engaging watching and listening experiences simultaneously, towards high-quality realistic videos. To generate joint audio-video pairs, we propose a novel Multi-Modal…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Ludan Ruan , Yiyang Ma , Huan Yang , Huiguo He , Bei Liu , Jianlong Fu , Nicholas Jing Yuan , Qin Jin , Baining Guo

Graph Neural Network(GNN) based social recommendation models improve the prediction accuracy of user preference by leveraging GNN in exploiting preference similarity contained in social relations. However, in terms of both effectiveness and…

Information Retrieval · Computer Science 2023-03-16 Yuhan Quan , Jingtao Ding , Chen Gao , Lingling Yi , Depeng Jin , Yong Li

Session-based recommendation focuses on predicting the next item a user will interact with based on sequences of anonymous user sessions. A significant challenge in this field is data sparsity due to the typically short-term interactions.…

Information Retrieval · Computer Science 2024-12-17 Zhe Yang , Tiantian Liang

Multimodal learning with incomplete input data (missing modality) is practical and challenging. In this work, we conduct an in-depth analysis of this challenge and find that modality dominance has a significant negative impact on the model…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Hao Wang , Shengda Luo , Guosheng Hu , Jianguo Zhang

Graph collaborative filtering, which learns user and item representations through message propagation over the user-item interaction graph, has been shown to effectively enhance recommendation performance. However, most current graph…

Information Retrieval · Computer Science 2023-11-14 Yijie Zhang , Yuanchen Bei , Shiqi Yang , Hao Chen , Zhiqing Li , Lijia Chen , Feiran Huang

With the increasing multimedia information, multimodal recommendation has received extensive attention. It utilizes multimodal information to alleviate the data sparsity problem in recommendation systems, thus improving recommendation…

Information Retrieval · Computer Science 2024-03-01 Jinfeng Xu , Zheyu Chen , Shuo Yang , Jinze Li , Hewei Wang , Edith C. -H. Ngai

Spatial and temporal stream model has gained great success in video action recognition. Most existing works pay more attention to designing effective features fusion methods, which train the two-stream model in a separate way. However, it's…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Jingran Zhang , Fumin Shen , Xing Xu , Heng Tao Shen

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

Intent modeling has attracted widespread attention in recommender systems. As the core motivation behind user selection of items, intent is crucial for elucidating recommendation results. The current mainstream modeling method is to…

Information Retrieval · Computer Science 2024-05-16 Yi Zhang , Lei Sang , Yiwen Zhang

Deep generative models with latent variables have been used lately to learn joint representations and generative processes from multi-modal data. These two learning mechanisms can, however, conflict with each other and representations can…

Machine Learning · Computer Science 2023-01-24 Rogelio A. Mancisidor , Michael Kampffmeyer , Kjersti Aas , Robert Jenssen

Incorporating multi-modal features as side information has recently become a trend in recommender systems. To elucidate user-item preferences, recent studies focus on fusing modalities via concatenation, element-wise sum, or attention…

Information Retrieval · Computer Science 2024-12-20 Rongqing Kenneth Ong , Andy W. H. Khong

Multi-modality image fusion enhances scene perception by combining complementary information. Unified models aim to share parameters across modalities for multi-modality image fusion, but large modality differences often cause gradient…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Xilai Li , Xiaosong Li , Weijun Jiang