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Deep learning-based recommender systems have achieved remarkable success in recent years. However, these methods usually heavily rely on labeled data (i.e., user-item interactions), suffering from problems such as data sparsity and…

Information Retrieval · Computer Science 2023-10-12 Mengyuan Jing , Yanmin Zhu , Tianzi Zang , Ke Wang

Sequential Recommendationdescribes a set of techniques to model dynamic user behavior in order to predict future interactions in sequential user data. At their core, such approaches model transition probabilities between items in a…

Information Retrieval · Computer Science 2021-08-17 Zhiwei Liu , Yongjun Chen , Jia Li , Philip S. Yu , Julian McAuley , Caiming Xiong

This study introduces CUPID, a novel approach to session-based reciprocal recommendation systems designed for a real-time one-on-one social discovery platform. In such platforms, low latency is critical to enhance user experiences. However,…

Information Retrieval · Computer Science 2024-10-25 Beomsu Kim , Sangbum Kim , Minchan Kim , Joonyoung Yi , Sungjoo Ha , Suhyun Lee , Youngsoo Lee , Gihun Yeom , Buru Chang , Gihun Lee

Sequential recommendation (SR) models often capture user preferences based on the historically interacted item IDs, which usually obtain sub-optimal performance when the interaction history is limited. Content-based sequential…

Information Retrieval · Computer Science 2025-10-20 Donglin Zhou , Weike Pan , Zhong Ming

Sequential Recommendation is a widely studied paradigm for learning users' dynamic interests from historical interactions for predicting the next potential item. Although lots of research work has achieved remarkable progress, they are…

Information Retrieval · Computer Science 2023-03-02 Yongqiang Han , Likang Wu , Hao Wang , Guifeng Wang , Mengdi Zhang , Zhi Li , Defu Lian , Enhong Chen

The explosion of multimedia data in information-rich environments has intensified the challenges of personalized content discovery, positioning recommendation systems as an essential form of passive data management. Multimodal sequential…

Information Retrieval · Computer Science 2026-03-05 Jinfeng Xu , Zheyu Chen , Shuo Yang , Jinze Li , Hewei Wang , Yijie Li , Jianheng Tang , Yunhuai Liu , Edith C. H. Ngai

Contrastive learning has proven effective in training sequential recommendation models by incorporating self-supervised signals from augmented views. Most existing methods generate multiple views from the same interaction sequence through…

Information Retrieval · Computer Science 2025-04-24 Yuanpeng Qu , Hajime Nobuhara

Session-based recommendation aims to predict intents of anonymous users based on their limited behaviors. Modeling user behaviors involves two distinct rationales: co-occurrence patterns reflected by item IDs, and fine-grained preferences…

Information Retrieval · Computer Science 2024-04-22 Xiaokun Zhang , Bo Xu , Zhaochun Ren , Xiaochen Wang , Hongfei Lin , Fenglong Ma

This paper studies the multi-modal recommendation problem, where the item multi-modality information (e.g., images and textual descriptions) is exploited to improve the recommendation accuracy. Besides the user-item interaction graph,…

Information Retrieval · Computer Science 2023-05-02 Xin Zhou , Hongyu Zhou , Yong Liu , Zhiwei Zeng , Chunyan Miao , Pengwei Wang , Yuan You , Feijun Jiang

Bundle recommendation seeks to recommend a bundle of related items to users to improve both user experience and the profits of platform. Existing bundle recommendation models have progressed from capturing only user-bundle interactions to…

Information Retrieval · Computer Science 2024-01-12 Yunshan Ma , Yingzhi He , Xiang Wang , Yinwei Wei , Xiaoyu Du , Yuyangzi Fu , Tat-Seng Chua

The KNN approach, which is widely used in recommender systems because of its efficiency, robustness and interpretability, is proposed for session-based recommendation recently and outperforms recurrent neural network models. It captures the…

Information Retrieval · Computer Science 2018-07-17 Huifeng Guo , Ruiming Tang , Yunming Ye , Feng Liu , Yuzhou Zhang

In this paper we present the results of our experiments in training and deploying a self-supervised retrieval-based chatbot trained with contrastive learning for assisting customer support agents. In contrast to most existing research…

Computation and Language · Computer Science 2025-08-18 Kristen Moore , Shenjun Zhong , Zhen He , Torsten Rudolf , Nils Fisher , Brandon Victor , Neha Jindal

Sequential recommendation is an extensively explored approach to capturing users' evolving preferences based on past interactions, aimed at predicting their next likely choice. Despite significant advancements in this domain, including…

Information Retrieval · Computer Science 2025-04-15 Kowei Shih , Yi Han , Li Tan

Boosting sales of e-commerce services is guaranteed once users find more matching items to their interests in a short time. Consequently, recommendation systems have become a crucial part of any successful e-commerce services. Although…

Recent advances in generative recommenders adopt a two-stage paradigm: items are first tokenized into semantic IDs using a pretrained tokenizer, and then large language models (LLMs) are trained to generate the next item via…

Information Retrieval · Computer Science 2026-05-05 Yifan Liu , Yaokun Liu , Zelin Li , Zhenrui Yue , Gyuseok Lee , Ruichen Yao , Yang Zhang , Dong Wang

Recent advancements of sequential deep learning models such as Transformer and BERT have significantly facilitated the sequential recommendation. However, according to our study, the distribution of item embeddings generated by these models…

Information Retrieval · Computer Science 2021-11-19 Ruihong Qiu , Zi Huang , Hongzhi Yin , Zijian Wang

Embedding-based retrieval serves as a dominant approach to candidate item matching for industrial recommender systems. With the success of generative AI, generative retrieval has recently emerged as a new retrieval paradigm for…

Information Retrieval · Computer Science 2024-09-10 Jieming Zhu , Mengqun Jin , Qijiong Liu , Zexuan Qiu , Zhenhua Dong , Xiu Li

Calibrated recommendation, which aims to maintain personalized proportions of categories within recommendations, is crucial in practical scenarios since it enhances user satisfaction by reflecting diverse interests. However, achieving…

Information Retrieval · Computer Science 2024-08-06 Hyunsik Jeon , Se-eun Yoon , Julian McAuley

Sequential recommendation has become increasingly prominent in both academia and industry, particularly in e-commerce. The primary goal is to extract user preferences from historical interaction sequences and predict items a user is likely…

Information Retrieval · Computer Science 2026-04-16 Xiaofan Zhou , Kyumin Lee

Session-based recommendation (SBR) learns users' preferences by capturing the short-term and sequential patterns from the evolution of user behaviors. Among the studies in the SBR field, graph-based approaches are a relatively powerful kind…

Information Retrieval · Computer Science 2021-07-13 Naicheng Guo , Xiaolei Liu , Shaoshuai Li , Qiongxu Ma , Yunan Zhao , Bing Han , Lin Zheng , Kaixin Gao , Xiaobo Guo