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Recommender systems aim to provide item recommendations for users, and are usually faced with data sparsity problem (e.g., cold start) in real-world scenarios. Recently pre-trained models have shown their effectiveness in knowledge transfer…

Information Retrieval · Computer Science 2020-09-22 Zheni Zeng , Chaojun Xiao , Yuan Yao , Ruobing Xie , Zhiyuan Liu , Fen Lin , Leyu Lin , Maosong Sun

A recommender system aims to recommend items that a user is interested in among many items. The need for the recommender system has been expanded by the information explosion. Various approaches have been suggested for providing meaningful…

Information Retrieval · Computer Science 2018-01-18 Sungwoon Choi , Heonseok Ha , Uiwon Hwang , Chanju Kim , Jung-Woo Ha , Sungroh Yoon

Game recommendation is an important application of recommender systems. Recommendations are made possible by data sets of historical player and game interactions, and sometimes the data sets include features that describe games or players.…

Information Retrieval · Computer Science 2020-09-21 Markus Viljanen , Jukka Vahlo , Aki Koponen , Tapio Pahikkala

The reasoning and generalization capabilities of LLMs can help us better understand user preferences and item characteristics, offering exciting prospects to enhance recommendation systems. Though effective while user-item interactions are…

Information Retrieval · Computer Science 2024-02-20 Jianling Wang , Haokai Lu , James Caverlee , Ed Chi , Minmin Chen

The use of user/product information in sentiment analysis is important, especially for cold-start users/products, whose number of reviews are very limited. However, current models do not deal with the cold-start problem which is typical in…

Computation and Language · Computer Science 2018-06-15 Reinald Kim Amplayo , Jihyeok Kim , Sua Sung , Seung-won Hwang

Recommending cold-start items is a long-standing and fundamental challenge in recommender systems. Without any historical interaction on cold-start items, CF scheme fails to use collaborative signals to infer user preference on these items.…

Information Retrieval · Computer Science 2021-07-16 Yinwei Wei , Xiang Wang , Qi Li , Liqiang Nie , Yan Li , Xuanping Li , Tat-Seng Chua

In this paper, we study the problem of recommendation system where the users and items to be recommended are rich data structures with multiple entity types and with multiple sources of side-information in the form of graphs. We provide a…

Providing long-range forecasts is a fundamental challenge in time series modeling, which is only compounded by the challenge of having to form such forecasts when a time series has never previously been observed. The latter challenge is the…

Machine Learning · Statistics 2018-08-28 Christopher Xie , Alex Tank , Alec Greaves-Tunnell , Emily Fox

In Conversational Recommendation System (CRS), an agent is asked to recommend a set of items to users within natural language conversations. To address the need for both conversational capability and personalized recommendations, prior…

Computation and Language · Computer Science 2023-10-30 Yeongseo Jung , Eunseo Jung , Lei Chen

Despite recommender systems play a key role in network content platforms, mining the user's interests is still a significant challenge. Existing works predict the user interest by utilizing user behaviors, i.e., clicks, views, etc., but…

Information Retrieval · Computer Science 2023-08-15 Xuanji Xiao , Huaqiang Dai , Qian Dong , Shuzi Niu , Yuzhen Liu , Pei Liu

Sequential recommendation systems often struggle to make predictions or take action when dealing with cold-start items that have limited amount of interactions. In this work, we propose SimRec - a new approach to mitigate the cold-start…

Information Retrieval · Computer Science 2024-10-30 Shaked Brody , Shoval Lagziel

Facebook Marketplace is quickly gaining momentum among consumers as a favored customer-to-customer (C2C) product trading platform. The recommendation system behind it helps to significantly improve the user experience. Building the…

Information Retrieval · Computer Science 2018-06-01 Lu Zheng , Zhao Tan , Kun Han , Ren Mao

Conversational recommendation systems (CRS) aim to recommend suitable items to users through natural language conversation. However, most CRS approaches do not effectively utilize the signal provided by these conversations. They rely…

Computation and Language · Computer Science 2023-05-24 Raghav Gupta , Renat Aksitov , Samrat Phatale , Simral Chaudhary , Harrison Lee , Abhinav Rastogi

We present a scalable recommender system implementation based on RippleNet, tailored for the media domain with a production deployment in Onet.pl, one of Poland's largest online media platforms. Our solution addresses the cold-start problem…

Information Retrieval · Computer Science 2025-11-05 Karol Radziszewski , Michał Szpunar , Piotr Ociepka , Mateusz Buczyński

Recommender systems are a vital tool that helps us to overcome the information overload problem. They are being used by most e-commerce web sites and attract the interest of a broad scientific community. A recommender system uses data on…

Information Retrieval · Computer Science 2017-02-22 Fei Yu , An Zeng , Sebastien Gillard , Matus Medo

Classical accuracy-oriented Recommender Systems (RSs) typically face the cold-start problem and the filter-bubble problem when users suffer the familiar, repeated, and even predictable recommendations, making them boring and unsatisfied. To…

Information Retrieval · Computer Science 2022-04-28 Yuanbo Xu , Yongjian Yang , En Wang

Large Language Models (LLMs) have demonstrated remarkable capabilities in reasoning, generalization, and simulating human-like behavior across a wide range of tasks. These strengths present new opportunities to enhance traditional…

Information Retrieval · Computer Science 2025-12-01 Nachiket Subbaraman , Jaskinder Sarai , Aniruddh Nath , Lichan Hong , Lukasz Heldt , Li Wei , Zhe Zhao

Cross-domain recommendation (CDR) has demonstrated to be an effective solution for alleviating the user cold-start issue. By leveraging rich user-item interactions available in a richly informative source domain, CDR could improve the…

Information Retrieval · Computer Science 2026-04-29 Xiaodong Li , Jiawei Sheng , Jiangxia Cao , Xinghua Zhang , Wenyuan Zhang , Yong Sun , Shirui Pan , Zhihong Tian , Tingwen Liu

Recommendation systems suffer in the strict cold-start (SCS) scenario, where the user-item interactions are entirely unavailable. The ID-based approaches completely fail to work. Cold-start recommenders, on the other hand, leverage item…

Information Retrieval · Computer Science 2023-06-27 Yuwei Cao , Liangwei Yang , Chen Wang , Zhiwei Liu , Hao Peng , Chenyu You , Philip S. Yu

There is much empirical evidence that item-item collaborative filtering works well in practice. Motivated to understand this, we provide a framework to design and analyze various recommendation algorithms. The setup amounts to online binary…

Machine Learning · Computer Science 2016-01-11 Guy Bresler , Devavrat Shah , Luis F. Voloch