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Modern recommender systems trained on domain-specific data often struggle to generalize across multiple domains. Cross-domain sequential recommendation has emerged as a promising research direction to address this challenge; however,…

Information Retrieval · Computer Science 2026-01-06 Hyunsoo Kim , Jaewan Moon , Seongmin Park , Jongwuk Lee

Sequential recommender systems (SRSs) aim to predict the subsequent items which may interest users via comprehensively modeling users' complex preference embedded in the sequence of user-item interactions. However, most of existing SRSs…

Information Retrieval · Computer Science 2024-10-31 Chengkai Huang , Shoujin Wang , Xianzhi Wang , Lina Yao

Sequential recommendation methods play a crucial role in modern recommender systems because of their ability to capture a user's dynamic interest from her/his historical interactions. Despite their success, we argue that these approaches…

Information Retrieval · Computer Science 2021-03-02 Xu Xie , Fei Sun , Zhaoyang Liu , Shiwen Wu , Jinyang Gao , Bolin Ding , Bin Cui

BERT4Rec is an effective model for sequential recommendation based on the Transformer architecture. In the original publication, BERT4Rec claimed superiority over other available sequential recommendation approaches (e.g. SASRec), and it is…

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

Sequential recommendation is an advanced recommendation technique that utilizes the sequence of user behaviors to generate personalized suggestions by modeling the temporal dependencies and patterns in user preferences. However, it requires…

Information Retrieval · Computer Science 2025-04-09 Yichen Li , Qiyu Qin , Gaoyang Zhu , Wenchao Xu , Haozhao Wang , Yuhua Li , Rui Zhang , Ruixuan Li

Generative recommendation autoregressively generates item identifiers to recommend potential items. Existing methods typically adopt a one-to-one mapping strategy, where each item is represented by a single identifier. However, this scheme…

Information Retrieval · Computer Science 2025-05-27 Bowen Zheng , Enze Liu , Zhongfu Chen , Zhongrui Ma , Yue Wang , Wayne Xin Zhao , Ji-Rong Wen

In conversational recommender systems (CRSs), conversations usually involve a set of items and item-related entities or attributes, e.g., director is a related entity of a movie. These items and item-related entities are often mentioned…

Information Retrieval · Computer Science 2024-12-04 Jie Zou , Aixin Sun , Cheng Long , Evangelos Kanoulas

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

Ranking is a central task in machine learning and information retrieval. In this task, it is especially important to present the user with a slate of items that is appealing as a whole. This in turn requires taking into account interactions…

Information Retrieval · Computer Science 2019-03-21 Irwan Bello , Sayali Kulkarni , Sagar Jain , Craig Boutilier , Ed Chi , Elad Eban , Xiyang Luo , Alan Mackey , Ofer Meshi

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…

Neural network approaches in recommender systems have shown remarkable success by representing a large set of items as a learnable vector embedding table. However, infrequent items may suffer from inadequate training opportunities, making…

Information Retrieval · Computer Science 2023-12-12 Jinseok Seol , Minseok Gang , Sang-goo Lee , Jaehui Park

Predicting a user's preference in a short anonymous interaction session instead of long-term history is a challenging problem in the real-life session-based recommendation, e.g., e-commerce and media stream. Recent research of the…

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

In sequential recommendation (SR), system exposure refers to items that are exposed to the user. Typically, only a few of the exposed items would be interacted with by the user. Although SR has achieved great success in predicting future…

Information Retrieval · Computer Science 2025-04-21 Ziqi Zhao , Zhaochun Ren , Jiyuan Yang , Zuming Yan , Zihan Wang , Liu Yang , Pengjie Ren , Zhumin Chen , Maarten de Rijke , Xin Xin

We present our solution to the job recommendation task for RecSys Challenge 2016. The main contribution of our work is to combine temporal learning with sequence modeling to capture complex user-item activity patterns to improve job…

Machine Learning · Computer Science 2016-08-16 Kuan Liu , Xing Shi , Anoop Kumar , Linhong Zhu , Prem Natarajan

Large transformer models have demonstrated remarkable success. Post-training quantization (PTQ), which requires only a small dataset for calibration and avoids end-to-end retraining, is a promising solution for compressing these large…

Machine Learning · Computer Science 2024-02-09 Zhikai Li , Xuewen Liu , Jing Zhang , Qingyi Gu

Item-based models are among the most popular collaborative filtering approaches for building recommender systems. Random walks can provide a powerful tool for harvesting the rich network of interactions captured within these models. They…

Information Retrieval · Computer Science 2020-10-07 Athanasios N. Nikolakopoulos , George Karypis

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

This paper presents a solution to the challenges faced by contrastive learning in sequential recommendation systems. In particular, it addresses the issue of false negative, which limits the effectiveness of recommendation algorithms. By…

Information Retrieval · Computer Science 2023-07-12 Jaeheyoung Jeon , Jung Hyun Ryu , Jewoong Cho , Myungjoo Kang

Recent advancements in generative recommendation systems, particularly in the realm of sequential recommendation tasks, have shown promise in enhancing generalization to new items. Among these approaches, diffusion-based generative…

Information Retrieval · Computer Science 2024-10-23 Guoqing Hu , Zhengyi Yang , Zhibo Cai , An Zhang , Xiang Wang

The training paradigm integrating large language models (LLM) is gradually reshaping sequential recommender systems (SRS) and has shown promising results. However, most existing LLM-enhanced methods rely on rich textual information on the…

Information Retrieval · Computer Science 2024-10-17 Dugang Liu , Shenxian Xian , Xiaolin Lin , Xiaolian Zhang , Hong Zhu , Yuan Fang , Zhen Chen , Zhong Ming