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Cross-Domain Sequential Recommendation (CDSR) aims to mine and transfer users' sequential preferences across different domains to alleviate the long-standing cold-start issue. Traditional CDSR models capture collaborative information…

机器学习 · 计算机科学 2024-06-06 Tingjia Shen , Hao Wang , Jiaqing Zhang , Sirui Zhao , Liangyue Li , Zulong Chen , Defu Lian , Enhong Chen

The sequential recommendation problem has attracted considerable research attention in the past few years, leading to the rise of numerous recommendation models. In this work, we explore how Large Language Models (LLMs), which are nowadays…

Sequential recommender systems are essential for discerning user preferences from historical interactions and facilitating targeted recommendations. Recent innovations employing Large Language Models (LLMs) have advanced the field by…

信息检索 · 计算机科学 2024-09-04 Xinyu Zhang , Linmei Hu , Luhao Zhang , Dandan Song , Heyan Huang , Liqiang Nie

Repeat consumption, such as repurchasing items and relistening songs, is a common scenario in daily life. To model repeat consumption, the repeat-aware recommendation has been proposed to predict which item will be re-interacted based on…

信息检索 · 计算机科学 2025-06-11 Shigang Quan , Shui Liu , Zhenzhe Zheng , Fan Wu

Most existing contrastive learning-based sequential recommendation (SR) methods rely on random operations (e.g., crop, reorder, and substitute) to generate augmented sequences. These methods often struggle to create positive sample pairs…

信息检索 · 计算机科学 2025-03-27 Wei Wang , Yujie Lin , Jianli Zhao , Moyan Zhang , Pengjie Ren , Xianye Ben , Yujun Li

Attribute-aware sequential recommendation entails predicting the next item a user will interact with based on a chronologically ordered history of past interactions, enriched with item attributes. Existing methods typically leverage…

信息检索 · 计算机科学 2026-05-08 Shereen Elsayed , Ngoc Son Le , Ahmed Rashed , Lars Schmidt-Thieme

Large language model (LLM)-based recommender models that bridge users and items through textual prompts for effective semantic reasoning have gained considerable attention. However, few methods consider the underlying rationales behind…

计算与语言 · 计算机科学 2025-01-09 Xinfeng Wang , Jin Cui , Yoshimi Suzuki , Fumiyo Fukumoto

Accounting for the fact that users have different sequential patterns, the main drawback of state-of-the-art recommendation strategies is that a fixed sequence length of user-item interactions is required as input to train the models. This…

信息检索 · 计算机科学 2021-08-04 Stefanos Antaris , Dimitrios Rafailidis

Recommender systems are one of the most successful applications of machine learning and data science. They are successful in a wide variety of application domains, including e-commerce, media streaming content, email marketing, and…

信息检索 · 计算机科学 2023-04-04 Juan Pablo Equihua , Maged Ali , Henrik Nordmark , Berthold Lausen

Conversational recommender systems (CRSs) enhance recommendation quality by engaging users in multi-turn dialogues, capturing nuanced preferences through natural language interactions. However, these systems often face the false negative…

信息检索 · 计算机科学 2025-08-11 Haozhe Xu , Xiaohua Wang , Changze Lv , Xiaoqing Zheng

Modeling the sequential correlation of users' historical interactions is essential in sequential recommendation. However, the majority of the approaches mainly focus on modeling the \emph{intra-sequence} item correlation within each…

信息检索 · 计算机科学 2020-04-30 Feng Liu , Weiwen Liu , Xutao Li , Yunming Ye

The integration of Large Language Models (LLMs) into recommender systems has led to substantial performance improvements. However, this often comes at the cost of diminished recommendation diversity, which can negatively impact user…

信息检索 · 计算机科学 2025-01-07 Jiaju Chen , Chongming Gao , Shuai Yuan , Shuchang Liu , Qingpeng Cai , Peng Jiang

Session-based recommendation (SBR) aims to predict users' subsequent actions by modeling short-term interactions within sessions. Existing neural models primarily focus on capturing complex dependencies for sequential item transitions. As…

信息检索 · 计算机科学 2025-04-22 Minjin Choi , Sunkyung Lee , Seongmin Park , Jongwuk Lee

Large Language Models (LLMs) for Recommendation (LLM4Rec) is a promising research direction that has demonstrated exceptional performance in this field. However, its inability to capture real-time user preferences greatly limits the…

信息检索 · 计算机科学 2025-02-26 Zheqi Lv , Tianyu Zhan , Wenjie Wang , Xinyu Lin , Shengyu Zhang , Wenqiao Zhang , Jiwei Li , Kun Kuang , Fei Wu

Recently, significant progress has been made in sequential recommendation with deep learning. Existing neural sequential recommendation models usually rely on the item prediction loss to learn model parameters or data representations.…

信息检索 · 计算机科学 2020-08-19 Kun Zhou , Hui Wang , Wayne Xin Zhao , Yutao Zhu , Sirui Wang , Fuzheng Zhang , Zhongyuan Wang , Ji-Rong Wen

Learning the user-item relevance hidden in implicit feedback data plays an important role in modern recommender systems. Neural sequential recommendation models, which formulates learning the user-item relevance as a sequential…

信息检索 · 计算机科学 2022-03-01 Jingwei Zhuo , Bin Liu , Xiang Li , Han Zhu , Xiaoqiang Zhu

In recommender systems (RSs), predicting the next item that a user interacts with is critical for user retention. While the last decade has seen an explosion of RSs aimed at identifying relevant items that match user preferences, there is…

机器学习 · 计算机科学 2021-03-02 Zekarias T. Kefato , Sarunas Girdzijauskas , Nasrullah Sheikh , Alberto Montresor

While some powerful neural network architectures (e.g., Transformer, Graph Neural Networks) have achieved improved performance in sequential recommendation with high-order item dependency modeling, they may suffer from poor representation…

信息检索 · 计算机科学 2023-06-02 Yaowen Ye , Lianghao Xia , Chao Huang

Large Language Models (LLMs) have been integrated into recommendation systems to enhance user behavior comprehension. The Retrieval Augmented Generation (RAG) technique is further incorporated into these systems to retrieve more relevant…

信息检索 · 计算机科学 2025-02-12 Jian Xu , Sichun Luo , Xiangyu Chen , Haoming Huang , Hanxu Hou , Linqi Song

Large Language Models (LLMs) have achieved remarkable success in various fields, prompting several studies to explore their potential in recommendation systems. However, these attempts have so far resulted in only modest improvements over…

信息检索 · 计算机科学 2024-09-20 Junyi Chen , Lu Chi , Bingyue Peng , Zehuan Yuan