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Benefiting from the powerful expressive capability of graphs, graph-based approaches have achieved impressive performance in various biomedical applications. Most existing methods tend to define the adjacency matrix among samples manually…

Machine Learning · Computer Science 2021-07-02 Shuai Zheng , Zhenfeng Zhu , Zhizhe Liu , Zhenyu Guo , Yang Liu , Yao Zhao

Generative recommendation (GR) has become a powerful paradigm in recommendation systems that implicitly links modality and semantics to item representation, in contrast to previous methods that relied on non-semantic item identifiers in…

Information Retrieval · Computer Science 2025-04-01 Jing Zhu , Mingxuan Ju , Yozen Liu , Danai Koutra , Neil Shah , Tong Zhao

Recommendation systems, as widely implemented nowadays on various platforms, recommend relevant items to users based on their preferences. The classical methods which rely on user-item interaction matrices has limitations, especially in…

Information Retrieval · Computer Science 2025-01-13 Guangyi Liu , Quanming Yao , Yongqi Zhang , Lei Chen

Knowledge graph (KG) enhanced recommendation has demonstrated improved performance in the recommendation system (RecSys) and attracted considerable research interest. Recently the literature has adopted neural graph networks (GNNs) on the…

Information Retrieval · Computer Science 2022-11-15 Liangwei Yang , Shen Wang , Jibing Gong , Shaojie Zheng , Shuying Du , Zhiwei Liu , Philip S. Yu

Multimodal recommendation systems (MMRS) have received considerable attention from the research community due to their ability to jointly utilize information from user behavior and product images and text. Previous research has two main…

Information Retrieval · Computer Science 2024-07-18 Guojiao Lin , Zhen Meng , Dongjie Wang , Qingqing Long , Yuanchun Zhou , Meng Xiao

Incorporating knowledge graph (KG) into recommender system is promising in improving the recommendation accuracy and explainability. However, existing methods largely assume that a KG is complete and simply transfer the "knowledge" in KG at…

Information Retrieval · Computer Science 2019-02-19 Yixin Cao , Xiang Wang , Xiangnan He , Zikun hu , Tat-Seng Chua

Multimodal recommender systems (MMRSs) enhance collaborative filtering by leveraging item-side modalities, but their reliance on a fixed set of modalities and task-specific objectives limits both modality extensibility and task…

Information Retrieval · Computer Science 2026-02-25 Jiwoo Kang , Yeon-Chang Lee

Multimodal reasoning with large language models (LLMs) often suffers from hallucinations and the presence of deficient or outdated knowledge within LLMs. Some approaches have sought to mitigate these issues by employing textual knowledge…

Computation and Language · Computer Science 2024-06-06 Junlin Lee , Yequan Wang , Jing Li , Min Zhang

Recent advances in research have demonstrated the effectiveness of knowledge graphs (KG) in providing valuable external knowledge to improve recommendation systems (RS). A knowledge graph is capable of encoding high-order relations that…

Information Retrieval · Computer Science 2020-04-02 Yang Gao , Yi-Fan Li , Yu Lin , Hang Gao , Latifur Khan

We present MMKG, a collection of three knowledge graphs that contain both numerical features and (links to) images for all entities as well as entity alignments between pairs of KGs. Therefore, multi-relational link prediction and entity…

Artificial Intelligence · Computer Science 2019-03-14 Ye Liu , Hui Li , Alberto Garcia-Duran , Mathias Niepert , Daniel Onoro-Rubio , David S. Rosenblum

Personalized recommendations are popular in these days of Internet driven activities, specifically shopping. Recommendation methods can be grouped into three major categories, content based filtering, collaborative filtering and machine…

Information Retrieval · Computer Science 2021-01-11 Yuhao Mao , Serguei A. Mokhov , Sudhir P. Mudur

Collaborative filtering often suffers from sparsity and cold start problems in real recommendation scenarios, therefore, researchers and engineers usually use side information to address the issues and improve the performance of recommender…

Information Retrieval · Computer Science 2019-01-28 Hongwei Wang , Fuzheng Zhang , Miao Zhao , Wenjie Li , Xing Xie , Minyi Guo

Using knowledge graphs to assist deep learning models in making recommendation decisions has recently been proven to effectively improve the model's interpretability and accuracy. This paper introduces an end-to-end deep learning model,…

Information Retrieval · Computer Science 2024-04-11 Chen Li , Yang Cao , Ye Zhu , Debo Cheng , Chengyuan Li , Yasuhiko Morimoto

The multimodal recommendation has gradually become the infrastructure of online media platforms, enabling them to provide personalized service to users through a joint modeling of user historical behaviors (e.g., purchases, clicks) and item…

Information Retrieval · Computer Science 2024-04-19 Zhiqiang Guo , Jianjun Li , Guohui Li , Chaoyang Wang , Si Shi , Bin Ruan

Accurate user and item embedding learning is crucial for modern recommender systems. However, most existing recommendation techniques have thus far focused on modeling users' preferences over singular type of user-item interactions. Many…

Information Retrieval · Computer Science 2021-10-11 Lianghao Xia , Chao Huang , Yong Xu , Peng Dai , Xiyue Zhang , Hongsheng Yang , Jian Pei , Liefeng Bo

Medical deep learning models depend heavily on domain-specific knowledge to perform well on knowledge-intensive clinical tasks. Prior work has primarily leveraged unimodal knowledge graphs, such as the Unified Medical Language System…

Artificial Intelligence · Computer Science 2025-05-26 Xiaochen Wang , Yuan Zhong , Lingwei Zhang , Lisong Dai , Ting Wang , Fenglong Ma

Social recommendation based on social network has achieved great success in improving the performance of recommendation system. Since social network (user-user relations) and user-item interactions are both naturally represented as…

Information Retrieval · Computer Science 2021-09-27 Yiming Zhang , Lingfei Wu , Qi Shen , Yitong Pang , Zhihua Wei , Fangli Xu , Ethan Chang , Bo Long

The rise of online multi-modal sharing platforms like TikTok and YouTube has enabled personalized recommender systems to incorporate multiple modalities (such as visual, textual, and acoustic) into user representations. However, addressing…

Information Retrieval · Computer Science 2024-06-18 Yangqin Jiang , Lianghao Xia , Wei Wei , Da Luo , Kangyi Lin , Chao Huang

Both knowledge graphs and user-item interaction graphs are frequently used in recommender systems due to their ability to provide rich information for modeling users and items. However, existing studies often focused on one of these sources…

Information Retrieval · Computer Science 2023-06-27 Yajing Yang , Zeyu Zeng , Mao Chen , Ruirui Shang

Multimodal recommendation has emerged as a promising solution to alleviate the cold-start and sparsity problems in collaborative filtering by incorporating rich content information, such as product images and textual descriptions. However,…

Information Retrieval · Computer Science 2025-06-03 Sibei Liu , Yuanzhe Zhang , Xiang Li , Yunbo Liu , Chengwei Feng , Hao Yang