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Pre-trained language models (PLMs) have demonstrated strong performance in sequential recommendation (SR), which are utilized to extract general knowledge. However, existing methods still lack domain knowledge and struggle to capture users'…

Information Retrieval · Computer Science 2023-08-17 Jianyang Zhai , Xiawu Zheng , Chang-Dong Wang , Hui Li , Yonghong Tian

Recommender systems (RSs) are designed to provide personalized recommendations to users. Recently, knowledge graphs (KGs) have been widely introduced in RSs to improve recommendation accuracy. In this study, however, we demonstrate that RSs…

Information Retrieval · Computer Science 2025-01-24 Haonan Zhang , Dongxia Wang , Zhu Sun , Yanhui Li , Youcheng Sun , Huizhi Liang , Wenhai Wang

Recommender systems (RSs) have become an essential tool for mitigating information overload in a range of real-world applications. Recent trends in RSs have revealed a major paradigm shift, moving the spotlight from model-centric…

Information Retrieval · Computer Science 2024-05-29 Riwei Lai , Rui Chen , Chi Zhang

Knowledge Bases (KBs) contain a wealth of structured information about entities and predicates. This paper focuses on set-valued predicates, i.e., the relationship between an entity and a set of entities. In KBs, this information is often…

Databases · Computer Science 2020-03-27 Shrestha Ghosh , Simon Razniewski , Gerhard Weikum

With the development of recommender systems (RSs), several promising systems have emerged, such as context-aware RS, multi-criteria RS, and group RS. Multi-criteria recommender systems (MCRSs) are designed to provide personalized…

Information Retrieval · Computer Science 2025-03-18 Yong Zheng

Sequential Recommender Systems (SRSs) have emerged as a highly efficient approach to recommendation systems. By leveraging sequential data, SRSs can identify temporal patterns in user behaviour, significantly improving recommendation…

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

The progress of recommender systems is hampered mainly by evaluation as it requires real-time interactions between humans and systems, which is too laborious and expensive. This issue is usually approached by utilizing the interaction…

Information Retrieval · Computer Science 2022-08-19 Chongming Gao , Shijun Li , Wenqiang Lei , Jiawei Chen , Biao Li , Peng Jiang , Xiangnan He , Jiaxin Mao , Tat-Seng Chua

To solve the information explosion problem and enhance user experience in various online applications, recommender systems have been developed to model users preferences. Although numerous efforts have been made toward more personalized…

Information Retrieval · Computer Science 2020-03-03 Qingyu Guo , Fuzhen Zhuang , Chuan Qin , Hengshu Zhu , Xing Xie , Hui Xiong , Qing He

In the evolving e-commerce field, recommendation systems crucially shape user experience and engagement. The rise of Consumer-to-Consumer (C2C) recommendation systems, noted for their flexibility and ease of access for customer vendors,…

Information Retrieval · Computer Science 2024-07-18 Lichi Li , Zainul Abi Din , Zhen Tan , Sam London , Tianlong Chen , Ajay Daptardar

Traditional recommender systems (RS) have been primarily optimized for accuracy and short-term engagement, often overlooking transparency and trustworthiness. Recently, platforms such as Amazon and Instagram have begun providing…

Information Retrieval · Computer Science 2026-01-07 Chung Park , Taesan Kim , Hyeongjun Yun , Dongjoon Hong , Junui Hong , Kijung Park , MinCheol Cho , Mira Myong , Jihoon Oh , Min sung Choi

Recent advances in Large Language Models (LLMs) have driven their adoption in recommender systems through Retrieval-Augmented Generation (RAG) frameworks. However, existing RAG approaches predominantly rely on flat, similarity-based…

Information Retrieval · Computer Science 2025-06-10 Vahid Azizi , Fatemeh Koochaki

Wikidata is an open knowledge graph built by a global community of volunteers. As it advances in scale, it faces substantial challenges around editor engagement. These challenges are in terms of both attracting new editors to keep up with…

Information Retrieval · Computer Science 2021-08-02 Kholoud AlGhamdi , Miaojing Shi , Elena Simperl

Sequential recommendation systems model dynamic preferences of users based on their historical interactions with platforms. Despite recent progress, modeling short-term and long-term behavior of users in such systems is nontrivial and…

Information Retrieval · Computer Science 2021-07-07 Mehrnaz Amjadi , Seyed Danial Mohseni Taheri , Theja Tulabandhula

Recommender systems have become important tools to support users in identifying relevant content in an overloaded information space. To ease the development of recommender systems, a number of recommender frameworks have been proposed that…

Information Retrieval · Computer Science 2019-01-03 Dominik Kowald , Simone Kopeinik , Elisabeth Lex

Collaborator finding systems are a special type of expert finding models. There is a long-lasting challenge for research in the collaborator recommending research area, which is the lack of the structured dataset to be used by the…

Information Retrieval · Computer Science 2021-02-19 Zahra Roozbahani , Jalal Rezaeenour , Roshan Shahrooei , Hanif Emamgholizadeh

Recent advancements in recommender systems have focused on integrating knowledge graphs (KGs) to leverage their auxiliary information. The core idea of KG-enhanced recommenders is to incorporate rich semantic information for more accurate…

Information Retrieval · Computer Science 2024-07-08 Darnbi Sakong , Viet Hung Vu , Thanh Trung Huynh , Phi Le Nguyen , Hongzhi Yin , Quoc Viet Hung Nguyen , Thanh Tam Nguyen

Incorporating knowledge graph as side information has become a new trend in recommendation systems. Recent studies regard items as entities of a knowledge graph and leverage graph neural networks to assist item encoding, yet by considering…

Information Retrieval · Computer Science 2022-11-22 Lingyun Lu , Bang Wang , Zizhuo Zhang , Shenghao Liu , Han Xu

Recommender systems (RSs) are software tools and algorithms developed to alleviate the problem of information overload, which makes it difficult for a user to make right decisions. Two main paradigms toward the recommendation problem are…

Information Retrieval · Computer Science 2021-05-24 Mehdi Afsar , Trafford Crump , Behrouz Far

Cold start knowledge base population (KBP) is the problem of populating a knowledge base from unstructured documents. While artificial neural networks have led to significant improvements in the different tasks that are part of KBP, the…

Information Retrieval · Computer Science 2020-08-20 Lingraj S Vannur , Balaji Ganesan , Lokesh Nagalapatti , Hima Patel , MN Thippeswamy