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Although a variety of methods have been proposed for sequential recommendation, it is still far from being well solved partly due to two challenges. First, the existing methods often lack the simultaneous consideration of the global…

Information Retrieval · Computer Science 2022-08-10 Lihua Chen , Ning Yang , Philip S Yu

Large Language Models (LLMs) have emerged as powerful tools in the field of Natural Language Processing (NLP) and have recently gained significant attention in the domain of Recommendation Systems (RS). These models, trained on massive…

Information Retrieval · Computer Science 2024-06-19 Likang Wu , Zhi Zheng , Zhaopeng Qiu , Hao Wang , Hongchao Gu , Tingjia Shen , Chuan Qin , Chen Zhu , Hengshu Zhu , Qi Liu , Hui Xiong , Enhong Chen

Recommender systems in multi-behavior domains, such as advertising and e-commerce, aim to guide users toward high-value but inherently sparse conversions. Leveraging auxiliary behaviors (e.g., clicks, likes, shares) is therefore essential.…

Information Retrieval · Computer Science 2025-11-06 Zhefan Wang , Guokai Yan , Jinbei Yu , Siyu Gu , Jingyan Chen , Peng Jiang , Zhiqiang Guo , Min Zhang

Sequential Recommendation (SR) task involves predicting the next item a user is likely to interact with, given their past interactions. The SR models examine the sequence of a user's actions to discern more complex behavioral patterns and…

Information Retrieval · Computer Science 2025-04-22 Wujiang Xu , Qitian Wu , Zujie Liang , Jiaojiao Han , Xuying Ning , Yunxiao Shi , Wenfang Lin , Yongfeng Zhang

Sequential recommendation problems have received increasing attention in research during the past few years, leading to the inception of a large variety of algorithmic approaches. In this work, we explore how large language models (LLMs),…

Information Retrieval · Computer Science 2023-09-19 Jesse Harte , Wouter Zorgdrager , Panos Louridas , Asterios Katsifodimos , Dietmar Jannach , Marios Fragkoulis

Recommender systems assist users in decision-making, where the presentation of recommended items and their explanations are critical factors for enhancing the overall user experience. Although various methods for generating explanations…

In the realm of music recommendation, sequential recommender systems have shown promise in capturing the dynamic nature of music consumption. Nevertheless, traditional Transformer-based models, such as SASRec and BERT4Rec, while effective,…

Information Retrieval · Computer Science 2024-09-09 Davide Abbattista , Vito Walter Anelli , Tommaso Di Noia , Craig Macdonald , Aleksandr Vladimirovich Petrov

Large language models (LLMs) have achieved remarkable progress in the field of natural language processing (NLP), demonstrating remarkable abilities in producing text that resembles human language for various tasks. This opens up new…

Information Retrieval · Computer Science 2024-06-05 Jianghao Lin , Xinyi Dai , Rong Shan , Bo Chen , Ruiming Tang , Yong Yu , Weinan Zhang

State-of-the-art sequential recommendation relies heavily on self-attention-based recommender models. Yet such models are computationally expensive and often too slow for real-time recommendation. Furthermore, the self-attention operation…

Information Retrieval · Computer Science 2023-11-09 Zhenrui Yue , Yueqi Wang , Zhankui He , Huimin Zeng , Julian McAuley , Dong Wang

Social recommendation is effective in improving the recommendation performance by leveraging social relations from online social networking platforms. Social relations among users provide friends' information for modeling users' interest in…

Information Retrieval · Computer Science 2021-03-17 Bairan Fu , Wenming Zhang , Guangneng Hu , Xinyu Dai , Shujian Huang , Jiajun Chen

Recent studies empirically indicate that language models (LMs) encode rich world knowledge beyond mere semantics, attracting significant attention across various fields. However, in the recommendation domain, it remains uncertain whether…

Information Retrieval · Computer Science 2025-04-22 Leheng Sheng , An Zhang , Yi Zhang , Yuxin Chen , Xiang Wang , Tat-Seng Chua

Cross-domain Sequential Recommendation (CDSR) aims to extract the preference from the user's historical interactions across various domains. Despite some progress in CDSR, two problems set the barrier for further advancements, i.e., overlap…

Information Retrieval · Computer Science 2025-04-28 Qidong Liu , Xiangyu Zhao , Yejing Wang , Zijian Zhang , Howard Zhong , Chong Chen , Xiang Li , Wei Huang , Feng Tian

Personalized recommendations have become a common feature of modern online services, including most major e-commerce sites, media platforms and social networks. Today, due to their high practical relevance, research in the area of…

Information Retrieval · Computer Science 2023-02-07 Pablo Castells , Dietmar Jannach

Many modern sequential recommender systems use deep neural networks, which can effectively estimate the relevance of items but require a lot of time to train. Slow training increases expenses, hinders product development timescales and…

Information Retrieval · Computer Science 2022-07-18 Aleksandr Petrov , Craig Macdonald

Learning a good representation of text is key to many recommendation applications. Examples include news recommendation where texts to be recommended are constantly published everyday. However, most existing recommendation techniques, such…

Information Retrieval · Computer Science 2017-06-27 Ting Chen , Liangjie Hong , Yue Shi , Yizhou Sun

With the rapid development of the internet and the explosion of information, providing users with accurate personalized recommendations has become an important research topic. This paper designs and analyzes a personalized recommendation…

Information Retrieval · Computer Science 2024-10-15 Chunyan Mao , Shuaishuai Huang , Mingxiu Sui , Haowei Yang , Xueshe Wang

Large language models (LLMs) have shown impressive capabilities in natural language understanding and generation. Their potential for deeper user understanding and improved personalized user experience on recommendation platforms is,…

Modern recommender systems aim to deeply understand users' complex preferences through their past interactions. While deep collaborative filtering approaches using Graph Neural Networks (GNNs) excel at capturing user-item relationships,…

Information Retrieval · Computer Science 2025-06-03 Yangqin Jiang , Yuhao Yang , Lianghao Xia , Da Luo , Kangyi Lin , Chao Huang

This paper argues that large language model-based recommenders can displace today's attention-allocation machinery. LLM-based recommenders would ingest open-web content, infer a user's natural-language goals, and present information that…

Computers and Society · Computer Science 2025-07-03 Seth Lazar , Luke Thorburn , Tian Jin , Luca Belli

There is a growing interest in utilizing large-scale language models (LLMs) to advance next-generation Recommender Systems (RecSys), driven by their outstanding language understanding and in-context learning capabilities. In this scenario,…

Information Retrieval · Computer Science 2025-08-18 Haohao Qu , Wenqi Fan , Zihuai Zhao , Qing Li