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Knowledge graph (KG) based Collaborative Filtering is an effective approach to personalizing recommendation systems for relatively static domains such as movies and books, by leveraging structured information from KG to enrich both item and…

Information Retrieval · Computer Science 2022-04-05 Weizhe Lin , Linjun Shou , Ming Gong , Pei Jian , Zhilin Wang , Bill Byrne , Daxin Jiang

Medical diagnosis is the process of making a prediction of the disease a patient is likely to have, given a set of symptoms and observations. This requires extensive expert knowledge, in particular when covering a large variety of diseases.…

Artificial Intelligence · Computer Science 2022-04-29 Niclas Heilig , Jan Kirchhoff , Florian Stumpe , Joan Plepi , Lucie Flek , Heiko Paulheim

Cross-domain recommendation systems face the challenge of integrating fine-grained user and item relationships across various product domains. To address this, we introduce RankGraph, a scalable graph learning framework designed to serve as…

Information Retrieval · Computer Science 2025-09-04 Renzhi Wu , Junjie Yang , Li Chen , Hong Li , Li Yu , Hong Yan

In this paper, we study the problem of recommendation system where the users and items to be recommended are rich data structures with multiple entity types and with multiple sources of side-information in the form of graphs. We provide a…

In recent years recommendation systems typically employ the edge information provided by knowledge graphs combined with the advantages of high-order connectivity of graph networks in the recommendation field. However, this method is limited…

Information Retrieval · Computer Science 2025-02-24 Feng Xia , Zhifei Hu

In today's era of information explosion, more users are becoming more reliant upon recommender systems to have better advice, suggestions, or inspire them. The measure of the semantic relatedness or likeness between terms, words, or text…

Information Retrieval · Computer Science 2023-07-21 Ngoc Luyen Le , Marie-Hélène Abel , Philippe Gouspillou

Recommender Systems have been widely used to help users in finding what they are looking for thus tackling the information overload problem. After several years of research and industrial findings looking after better algorithms to improve…

Information Retrieval · Computer Science 2018-07-18 Vito Bellini , Angelo Schiavone , Tommaso Di Noia , Azzurra Ragone , Eugenio Di Sciascio

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

Interactive recommendation aims to learn from dynamic interactions between items and users to achieve responsiveness and accuracy. Reinforcement learning is inherently advantageous for coping with dynamic environments and thus has attracted…

Information Retrieval · Computer Science 2020-12-02 Xiaocong Chen , Chaoran Huang , Lina Yao , Xianzhi Wang , Wei Liu , Wenjie Zhang

Graph-based recommender systems (GRSs) analyze the structural information in the graphical representation of data to make better recommendations, especially when the direct user-item relation data is sparse. Ranking-oriented GRSs that form…

Information Retrieval · Computer Science 2020-08-03 Taher Hekmatfar , Saman Haratizadeh , Sama Goliaei

Knowledge graphs contain rich semantic relationships related to items and incorporating such semantic relationships into recommender systems helps to explore the latent connections of items, thus improving the accuracy of prediction and…

Information Retrieval · Computer Science 2023-10-26 Jinfeng Zhong , Elsa Negre

Recommender systems improve access to relevant products and information by making personalized suggestions based on previous examples of a user's likes and dislikes. Most existing recommender systems use social filtering methods that base…

Digital Libraries · Computer Science 2007-05-23 Raymond J. Mooney , Loriene Roy

In this paper, we propose a novel graph neural network-based recommendation model called KGLN, which leverages Knowledge Graph (KG) information to enhance the accuracy and effectiveness of personalized recommendations. We first use a…

Information Retrieval · Computer Science 2024-02-06 Chaoyang Zhang , Yanan Li , Shen Chen , Siwei Fan , Wei Li

Drug recommendation (DR) systems aim to support healthcare professionals in selecting appropriate medications based on patients' medical conditions. State-of-the-art approaches utilize deep learning techniques for improving DR, but fall…

Information Retrieval · Computer Science 2025-11-03 Yu Lin , Zhen Jia , Philipp Christmann , Xu Zhang , Shengdong Du , Tianrui Li

Group recommendation aims at providing optimized recommendations tailored to diverse groups, enabling groups to enjoy appropriate items. On the other hand, most existing group recommendation methods are built upon deep neural network (DNN)…

Information Retrieval · Computer Science 2025-02-14 Chae-Hyun Kim , Yoon-Ryung Choi , Jin-Duk Park , Won-Yong Shin

Recent advances in personalized recommendation have sparked great interest in the exploitation of rich structured information provided by knowledge graphs. Unlike most existing approaches that only focus on leveraging knowledge graphs for…

Information Retrieval · Computer Science 2019-06-13 Yikun Xian , Zuohui Fu , S. Muthukrishnan , Gerard de Melo , Yongfeng Zhang

Knowledge-based recommendation models effectively alleviate the data sparsity issue leveraging the side information in the knowledge graph, and have achieved considerable performance. Nevertheless, the knowledge graphs used in previous…

Information Retrieval · Computer Science 2024-03-28 Shenghao Yang , Weizhi Ma , Peijie Sun , Min Zhang , Qingyao Ai , Yiqun Liu , Mingchen Cai

Knowledge graphs (KGs) have become vitally important in modern recommender systems, effectively improving performance and interpretability. Fundamentally, recommender systems aim to identify user interests based on historical interactions…

Information Retrieval · Computer Science 2024-03-20 Zezhong Xu , Yincen Qu , Wen Zhang , Lei Liang , Huajun Chen

To alleviate data sparsity and cold-start problems of traditional recommender systems (RSs), incorporating knowledge graphs (KGs) to supplement auxiliary information has attracted considerable attention recently. However, simply integrating…

Information Retrieval · Computer Science 2022-01-04 Yankai Chen , Yaming Yang , Yujing Wang , Jing Bai , Xiangchen Song , Irwin King

Recommender systems rely on Collaborative Filtering (CF) to predict user preferences by leveraging patterns in historical user-item interactions. While traditional CF methods primarily focus on learning compact vector embeddings for users…

Information Retrieval · Computer Science 2025-01-29 Darnbi Sakong , Thanh Trung Huynh , Jun Jo