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Probabilistic inferences distill knowledge from graphs to aid human make important decisions. Due to the inherent uncertainty in the model and the complexity of the knowledge, it is desirable to help the end-users understand the inference…

Social and Information Networks · Computer Science 2019-08-21 Chao Chen , Yifei Liu , Xi Zhang , Sihong Xie

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

Recommender system is one of the most important information services on today's Internet. Recently, graph neural networks have become the new state-of-the-art approach to recommender systems. In this survey, we conduct a comprehensive…

Information Retrieval · Computer Science 2023-01-13 Chen Gao , Yu Zheng , Nian Li , Yinfeng Li , Yingrong Qin , Jinghua Piao , Yuhan Quan , Jianxin Chang , Depeng Jin , Xiangnan He , Yong Li

This paper studies recommender systems with knowledge graphs, which can effectively address the problems of data sparsity and cold start. Recently, a variety of methods have been developed for this problem, which generally try to learn…

Information Retrieval · Computer Science 2022-01-10 Weiping Song , Zhijian Duan , Ziqing Yang , Hao Zhu , Ming Zhang , Jian Tang

Recommender systems have become integral to our digital experiences, from online shopping to streaming platforms. Still, the rationale behind their suggestions often remains opaque to users. While some systems employ a graph-based approach,…

Information technology has spread widely, and extraordinarily large amounts of data have been made accessible to users, which has made it challenging to select data that are in accordance with user needs. For the resolution of the above…

Information Retrieval · Computer Science 2020-08-05 Saman Forouzandeh , Mehrdad Rostami , Kamal Berahmand

Recommender systems play a vital role in helping users discover content in streaming services, but their effectiveness depends on users understanding why items are recommended. In this study, explanations were based solely on item features…

Information Retrieval · Computer Science 2025-05-07 Juan Ahmad , Jonas Hellgren , Alan Said

Recommender systems are pivotal in enhancing user experiences across various web applications by analyzing the complicated relationships between users and items. Knowledge graphs(KGs) have been widely used to enhance the performance of…

Information Retrieval · Computer Science 2024-07-02 Guangsi Shi , Xiaofeng Deng , Linhao Luo , Lijuan Xia , Lei Bao , Bei Ye , Fei Du , Shirui Pan , Yuxiao Li

Numerous Knowledge Graphs (KGs) are being created to make Recommender Systems (RSs) not only intelligent but also knowledgeable. Integrating a KG in the recommendation process allows the underlying model to extract reasoning paths between…

Information Retrieval · Computer Science 2022-11-11 Giacomo Balloccu , Ludovico Boratto , Gianni Fenu , Mirko Marras

In social recommenders, the inherent nonlinearity and opacity of synergistic effects across multiple social networks hinders users from understanding how diverse information is leveraged for recommendations, consequently diminishing…

Social and Information Networks · Computer Science 2026-01-27 Yicong Li , Shan Jin , Qi Liu , Shuo Wang , Jiaying Liu , Shuo Yu , Qiang Zhang , Kuanjiu Zhou , Feng Xia

Adding explanations to recommender systems is said to have multiple benefits, such as increasing user trust or system transparency. Previous work from other application areas suggests that specific user characteristics impact the users'…

Human-Computer Interaction · Computer Science 2025-02-04 Kathrin Wardatzky , Oana Inel , Luca Rossetto , Abraham Bernstein

The increasing availability of Massive Open Online Courses (MOOCs) has created a necessity for personalized course recommendation systems. These systems often combine neural networks with Knowledge Graphs (KGs) to achieve richer…

Information Retrieval · Computer Science 2023-12-19 Jibril Frej , Neel Shah , Marta Knežević , Tanya Nazaretsky , Tanja Käser

The recommendation system is not only a problem of inductive statistics from data but also a cognitive task that requires reasoning ability. The most advanced graph neural networks have been widely used in recommendation systems because…

Artificial Intelligence · Computer Science 2023-07-12 Bang Chen , Wei Peng , Maonian Wu , Bo Zheng , Shaojun Zhu

Recently, graph neural networks (GNNs) have been widely used to develop successful recommender systems. Although powerful, it is very difficult for a GNN-based recommender system to attach tangible explanations of why a specific item ends…

Information Retrieval · Computer Science 2022-08-09 Ziheng Chen , Fabrizio Silvestri , Jia Wang , Yongfeng Zhang , Zhenhua Huang , Hongshik Ahn , Gabriele Tolomei

With the explosive growth of online information, recommender systems play a key role to alleviate such information overload. Due to the important application value of recommender systems, there have always been emerging works in this field.…

Information Retrieval · Computer Science 2022-04-05 Shiwen Wu , Fei Sun , Wentao Zhang , Xu Xie , Bin Cui

A recommender system is an important subject in the field of data mining, where the item rating information from users is exploited and processed to make suitable recommendations with all other users. The recommender system creates…

Information Retrieval · Computer Science 2025-06-05 Tin T. Tran , Vaclav Snasel , Loc Tan Nguyen

The problem of session-based recommendation aims to predict user actions based on anonymous sessions. Previous methods model a session as a sequence and estimate user representations besides item representations to make recommendations.…

Information Retrieval · Computer Science 2019-08-14 Shu Wu , Yuyuan Tang , Yanqiao Zhu , Liang Wang , Xing Xie , Tieniu Tan

While advances in computing resources have made processing enormous amounts of data possible, human ability to identify patterns in such data has not scaled accordingly. Efficient computational methods for condensing and simplifying data…

Information Retrieval · Computer Science 2020-04-03 Yike Liu , Tara Safavi , Abhilash Dighe , Danai Koutra

Different from the traditional recommender system, the session-based recommender system introduces the concept of the session, i.e., a sequence of interactions between a user and multiple items within a period, to preserve the user's recent…

Information Retrieval · Computer Science 2021-07-12 Ruihong Qiu , Zi Huang , Jingjing Li , Hongzhi Yin

Recommender Systems have proliferated as general-purpose approaches to model a wide variety of consumer interaction data. Specific instances make use of signals ranging from user feedback, item relationships, geographic locality, social…

Information Retrieval · Computer Science 2018-08-31 Wang-Cheng Kang , Mengting Wan , Julian McAuley