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In the past decades, recommender systems have attracted much attention in both research and industry communities, and a large number of studies have been devoted to developing effective recommendation models. Basically speaking, these…

Information Retrieval · Computer Science 2023-05-12 Junjie Zhang , Ruobing Xie , Yupeng Hou , Wayne Xin Zhao , Leyu Lin , Ji-Rong Wen

Standard Collaborative Filtering (CF) algorithms make use of interactions between users and items in the form of implicit or explicit ratings alone for generating recommendations. Similarity among users or items is calculated purely based…

Information Retrieval · Computer Science 2014-02-26 Jobin Wilson , Santanu Chaudhury , Brejesh Lall , Prateek Kapadia

Large language models (LLM) not only have revolutionized the field of natural language processing (NLP) but also have the potential to reshape many other fields, e.g., recommender systems (RS). However, most of the related work treats an…

Information Retrieval · Computer Science 2024-03-26 Lei Li , Yongfeng Zhang , Dugang Liu , Li Chen

Recent advancements in Large Language Models (LLMs) have attracted considerable interest among researchers to leverage these models to enhance Recommender Systems (RSs). Existing work predominantly utilizes LLMs to generate knowledge-rich…

Information Retrieval · Computer Science 2024-07-25 Zhongxiang Sun , Zihua Si , Xiaoxue Zang , Kai Zheng , Yang Song , Xiao Zhang , Jun Xu

Recommender systems apply data mining techniques and prediction algorithms to predict users' interest on information, products and services among the tremendous amount of available items. The vast growth of information on the Internet as…

Information Retrieval · Computer Science 2016-11-25 Dhoha Almazro , Ghadeer Shahatah , Lamia Albdulkarim , Mona Kherees , Romy Martinez , William Nzoukou

The exponential growth of online social network platforms and applications has led to a staggering volume of user-generated textual content, including comments and reviews. Consequently, users often face difficulties in extracting valuable…

Computation and Language · Computer Science 2023-08-23 Anusuya Krishnan

One of the main computational and scientific challenges in the modern age is to extract useful information from unstructured texts. Topic models are one popular machine-learning approach which infers the latent topical structure of a…

Machine Learning · Statistics 2018-07-20 Martin Gerlach , Tiago P. Peixoto , Eduardo G. Altmann

Recommendation foundation model utilizes large language models (LLM) for recommendation by converting recommendation tasks into natural language tasks. It enables generative recommendation which directly generates the item(s) to recommend…

Information Retrieval · Computer Science 2023-09-27 Wenyue Hua , Shuyuan Xu , Yingqiang Ge , Yongfeng Zhang

In the era of information overload, recommendation systems play a pivotal role in filtering data and delivering personalized content. Recent advancements in feature interaction and user behavior modeling have significantly enhanced the…

Information Retrieval · Computer Science 2025-02-20 Hao Wang , Wei Guo , Luankang Zhang , Jin Yao Chin , Yufei Ye , Huifeng Guo , Yong Liu , Defu Lian , Ruiming Tang , Enhong Chen

Modeling user preferences across domains remains a key challenge in slate recommendation (i.e. recommending an ordered sequence of items) research. We investigate how Large Language Models (LLM) can effectively act as world models of user…

Information Retrieval · Computer Science 2025-11-07 Baptiste Bonin , Maxime Heuillet , Audrey Durand

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…

Information Retrieval · Computer Science 2025-02-13 Minhye Jeon , Seokho Ahn , Young-Duk Seo

There has been growing interest in using neural networks and deep learning techniques to create dialogue systems. Conversational recommendation is an interesting setting for the scientific exploration of dialogue with natural language as…

Machine Learning · Computer Science 2019-03-05 Raymond Li , Samira Kahou , Hannes Schulz , Vincent Michalski , Laurent Charlin , Chris Pal

A text mining approach is proposed based on latent Dirichlet allocation (LDA) to analyze the Consumer Financial Protection Bureau (CFPB) consumer complaints. The proposed approach aims to extract latent topics in the CFPB complaint…

Information Retrieval · Computer Science 2018-07-20 Kaveh Bastani , Hamed Namavari , Jeffry Shaffer

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

Recently, Large Language Models~(LLMs) such as ChatGPT have showcased remarkable abilities in solving general tasks, demonstrating the potential for applications in recommender systems. To assess how effectively LLMs can be used in…

Information Retrieval · Computer Science 2025-01-17 Lanling Xu , Junjie Zhang , Bingqian Li , Jinpeng Wang , Sheng Chen , Wayne Xin Zhao , Ji-Rong Wen

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'…

Information Retrieval · Computer Science 2024-04-02 Yuwei Cao , Nikhil Mehta , Xinyang Yi , Raghunandan Keshavan , Lukasz Heldt , Lichan Hong , Ed H. Chi , Maheswaran Sathiamoorthy

In contrast to single-user recommender systems, group recommender systems are designed to generate and explain recommendations for groups. This group-oriented setting introduces additional complexities, as several factors - absent in…

With the prosperity of e-commerce and web applications, Recommender Systems (RecSys) have become an important component of our daily life, providing personalized suggestions that cater to user preferences. While Deep Neural Networks (DNNs)…

Information Retrieval · Computer Science 2025-01-22 Zihuai Zhao , Wenqi Fan , Jiatong Li , Yunqing Liu , Xiaowei Mei , Yiqi Wang , Zhen Wen , Fei Wang , Xiangyu Zhao , Jiliang Tang , Qing Li

The paper underscores the significance of Large Language Models (LLMs) in reshaping recommender systems, attributing their value to unique reasoning abilities absent in traditional recommenders. Unlike conventional systems lacking direct…

Information Retrieval · Computer Science 2024-03-20 Arpita Vats , Vinija Jain , Rahul Raja , Aman Chadha

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