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Recent advances in Large Language Models (LLMs) have been changing the paradigm of Recommender Systems (RS). However, when items in the recommendation scenarios contain rich textual information, such as product descriptions in online…

信息检索 · 计算机科学 2024-03-21 Zhi Zheng , Wenshuo Chao , Zhaopeng Qiu , Hengshu Zhu , Hui Xiong

Large language models (LLMs) have recently been used as backbones for recommender systems. However, their performance often lags behind conventional methods in standard tasks like retrieval. We attribute this to a mismatch between LLMs'…

In the current landscape of ever-increasing levels of digitalization, we are facing major challenges pertaining to scalability. Recommender systems have become irreplaceable both for helping users navigate the increasing amounts of data…

信息检索 · 计算机科学 2024-04-03 Bjørnar Vassøy , Helge Langseth

Recently, the emergence of large language models (LLMs) has revolutionized the paradigm of information retrieval (IR) applications, especially in web search, by generating vast amounts of human-like texts on the Internet. As a result, IR…

信息检索 · 计算机科学 2024-08-01 Sunhao Dai , Yuqi Zhou , Liang Pang , Weihao Liu , Xiaolin Hu , Yong Liu , Xiao Zhang , Gang Wang , Jun Xu

A Conversational Recommender System (CRS) offers increased transparency and control to users by enabling them to engage with the system through a real-time multi-turn dialogue. Recently, Large Language Models (LLMs) have exhibited an…

Recommender systems (RS) are widely used in e-commerce for personalized suggestions, yet their openness makes them susceptible to shilling attacks, where adversaries inject fake behaviors to manipulate recommendations. Most existing…

计算与语言 · 计算机科学 2025-09-30 Kaihong Li , Huichi Zhou , Bin Ma , Fangjun Huang

Fairness is an emerging and challenging topic in recommender systems. In recent years, various ways of evaluating and therefore improving fairness have emerged. In this study, we examine existing evaluation measures of fairness in…

信息检索 · 计算机科学 2024-05-21 Theresia Veronika Rampisela , Maria Maistro , Tuukka Ruotsalo , Christina Lioma

Recommender systems are tasked to infer users' evolving preferences and rank items aligned with their intents, which calls for in-depth reasoning beyond pattern-based scoring. Recent efforts start to leverage large language models (LLMs)…

信息检索 · 计算机科学 2026-02-16 Kehan Zheng , Deyao Hong , Qian Li , Jun Zhang , Huan Yu , Jie Jiang , Hongning Wang

The use of knowledge graphs in recommender systems has become one of the common approaches to addressing data sparsity and cold start problems. Recent advances in large language models (LLMs) offer new possibilities for processing side and…

信息检索 · 计算机科学 2025-02-13 Minhye Jeon , Seokho Ahn , Young-Duk Seo

Recommender systems (RS) are vital for managing information overload and delivering personalized content, responding to users' diverse information needs. The emergence of large language models (LLMs) offers a new horizon for redefining…

信息检索 · 计算机科学 2024-07-16 Bo Chen , Xinyi Dai , Huifeng Guo , Wei Guo , Weiwen Liu , Yong Liu , Jiarui Qin , Ruiming Tang , Yichao Wang , Chuhan Wu , Yaxiong Wu , Hao Zhang

Interactive recommender systems can dynamically adapt to user feedback, but often suffer from content homogeneity and filter bubble effects due to overfitting short-term user preferences. While recent efforts aim to improve content…

信息检索 · 计算机科学 2026-05-12 Chongjun Xia , Yanchun Peng , Xianzhi Wang

The growth of recommender systems (RecSys) is driven by digitization and the need for personalized content in areas such as e-commerce and video streaming. The content in these systems often changes rapidly and therefore they constantly…

信息检索 · 计算机科学 2024-11-15 Shiyu Wang , Hao Ding , Yupeng Gu , Sergul Aydore , Kousha Kalantari , Branislav Kveton

Recommendation systems are ubiquitous, from Spotify playlist suggestions to Amazon product suggestions. Nevertheless, depending on the methodology or the dataset, these systems typically fail to capture user preferences and generate general…

Large Language Models are increasingly employed in generating consumer product recommendations, yet their potential for embedding and amplifying gender and race biases remains underexplored. This paper serves as one of the first attempts to…

计算与语言 · 计算机科学 2026-02-10 Ke Xu , Shera Potka , Alex Thomo

Rapid advancements of large language models (LLMs) have enabled the processing, understanding, and generation of human-like text, with increasing integration into systems that touch our social sphere. Despite this success, these models can…

Reranking is a critical component in recommender systems, playing an essential role in refining the output of recommendation algorithms. Traditional reranking models have focused predominantly on accuracy, but modern applications demand…

信息检索 · 计算机科学 2025-02-04 Jingtong Gao , Bo Chen , Weiwen Liu , Xiangyang Li , Yichao Wang , Wanyu Wang , Huifeng Guo , Ruiming Tang , Xiangyu Zhao

Recently, large language models (LLMs) have been introduced into recommender systems (RSs), either to enhance traditional recommendation models (TRMs) or serve as recommendation backbones. However, existing LLM-based RSs often do not fully…

信息检索 · 计算机科学 2025-05-27 Bowen Zheng , Xiaolei Wang , Enze Liu , Xi Wang , Lu Hongyu , Yu Chen , Wayne Xin Zhao , Ji-Rong Wen

Recent advancements in Large Language Models (LLMs) have significantly enhanced interactions between users and models. These advancements concurrently underscore the need for rigorous safety evaluations due to the manifestation of social…

计算与语言 · 计算机科学 2025-03-26 Dahyun Jung , Seungyoon Lee , Hyeonseok Moon , Chanjun Park , Heuiseok Lim

This paper explores the use of Large Language Models (LLMs) for sequential recommendation, which predicts users' future interactions based on their past behavior. We introduce a new concept, "Integrating Recommendation Systems as a New…

信息检索 · 计算机科学 2024-12-24 Kai Zheng , Qingfeng Sun , Can Xu , Peng Yu , Qingwei Guo

Large Language Models (LLMs) have recently garnered significant attention in various domains, including recommendation systems. Recent research leverages the capabilities of LLMs to improve the performance and user modeling aspects of…

信息检索 · 计算机科学 2024-11-05 Lei Chen , Chen Gao , Xiaoyi Du , Hengliang Luo , Depeng Jin , Yong Li , Meng Wang