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We increasingly depend on a variety of data-driven algorithmic systems to assist us in many aspects of life. Search engines and recommender systems amongst others are used as sources of information and to help us in making all sort of…

Databases · Computer Science 2021-09-01 Evaggelia Pitoura , Kostas Stefanidis , Georgia Koutrika

Chat dialogues contain considerable useful information about a speaker's interests, preferences, and experiences.Thus, knowledge from open-domain chat dialogue can be used to personalize various systems and offer recommendations for…

Machine Learning · Computer Science 2024-02-08 Ryutaro Asahara , Masaki Takahashi , Chiho Iwahashi , Michimasa Inaba

Algorithms that create recommendations based on observed data have significant commercial value for online retailers and many other industries. Recommender systems have a significant research community, and studying such systems is part of…

Information Retrieval · Computer Science 2022-05-26 Michael Hahsler

Recommender systems play a pivotal role in helping users navigate an overwhelming selection of products and services. On online platforms, users have the opportunity to share feedback in various modes, including numerical ratings, textual…

Information Retrieval · Computer Science 2025-05-27 Emrul Hasan , Mizanur Rahman , Chen Ding , Jimmy Xiangji Huang , Shaina Raza

Most of the existing recommender systems use the ratings provided by users on individual items. An additional source of preference information is to use the ratings that users provide on sets of items. The advantages of using preferences on…

Information Retrieval · Computer Science 2019-04-30 Mohit Sharma , F. Maxwell Harper , George Karypis

Recommender systems have become important tools to support users in identifying relevant content in an overloaded information space. To ease the development of recommender systems, a number of recommender frameworks have been proposed that…

Information Retrieval · Computer Science 2019-01-03 Dominik Kowald , Simone Kopeinik , Elisabeth Lex

Online educational platforms are playing a primary role in mediating the success of individuals' careers. Therefore, while building overlying content recommendation services, it becomes essential to guarantee that learners are provided with…

Information Retrieval · Computer Science 2022-08-24 Mirko Marras , Ludovico Boratto , Guilherme Ramos , Gianni Fenu

Large language models (LLMs) have demonstrated their significant potential to be applied for addressing various application tasks. However, traditional recommender systems continue to face great challenges such as poor interactivity and…

Information Retrieval · Computer Science 2023-04-05 Yunfan Gao , Tao Sheng , Youlin Xiang , Yun Xiong , Haofen Wang , Jiawei Zhang

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…

Information Retrieval · Computer Science 2025-05-27 Bowen Zheng , Xiaolei Wang , Enze Liu , Xi Wang , Lu Hongyu , Yu Chen , Wayne Xin Zhao , Ji-Rong Wen

Traditional recommender systems (RecSys) primarily infer user preferences from implicit signals (such as clicks, watches, and purchases), often neglecting the rich explicit contextual feedback users provide through verbal text, like…

Multi Scenario Recommendation (MSR) tasks, referring to building a unified model to enhance performance across all recommendation scenarios, have recently gained much attention. However, current research in MSR faces two significant…

Information Retrieval · Computer Science 2025-10-14 Xiaopeng Li , Jingtong Gao , Pengyue Jia , Xiangyu Zhao , Yichao Wang , Wanyu Wang , Yejing Wang , Yuhao Wang , Xiangyu Zhao , Huifeng Guo , Ruiming Tang

The information that mobiles can access becomes very wide nowadays, and the user is faced with a dilemma: there is an unlimited pool of information available to him but he is unable to find the exact information he is looking for. This is…

Information Retrieval · Computer Science 2013-05-09 Djallel Bouneffouf

Explanations in conventional recommender systems have demonstrated benefits in helping the user understand the rationality of the recommendations and improving the system's efficiency, transparency, and trustworthiness. In the…

Information Retrieval · Computer Science 2023-05-31 Shuyu Guo , Shuo Zhang , Weiwei Sun , Pengjie Ren , Zhumin Chen , Zhaochun Ren

Traditionally, recommender systems for the Web deal with applications that have two dimensions, users and items. Based on access logs that relate these dimensions, a recommendation model can be built and used to identify a set of N items…

Machine Learning · Computer Science 2011-11-16 Marcos A. Domingues , Alipio Mario Jorge , Carlos Soares

Recommender systems attempt to reduce information overload and retain customers by selecting a subset of items from a universal set based on user preferences. While research in recommender systems grew out of information retrieval and…

Information Retrieval · Computer Science 2007-05-23 Saverio Perugini , Marcos Andre Goncalves , Edward A. Fox

Travel Recommender Systems TRSs have been proposed to ease the burden of choice in the travel domain by providing valuable suggestions based on user preferences Despite the broad similarities in functionalities and data provided by TRSs…

Software Engineering · Computer Science 2024-07-17 Rickson Simioni Pereira , Claudio Di Sipio , Martina De Sanctis , Ludovico Iovino

Recommender systems are personalized information access applications; they are ubiquitous in today's online environment, and effective at finding items that meet user needs and tastes. As the reach of recommender systems has extended, it…

Recently, recommender system (RS) based on causal inference has gained much attention in the industrial community, as well as the states of the art performance in many prediction and debiasing tasks. Nevertheless, a unified causal analysis…

Information Retrieval · Computer Science 2022-05-19 Peng Wu , Haoxuan Li , Yuhao Deng , Wenjie Hu , Quanyu Dai , Zhenhua Dong , Jie Sun , Rui Zhang , Xiao-Hua Zhou

Recommender systems are software tools used to generate and provide suggestions for items and other entities to the users by exploiting various strategies. Hybrid recommender systems combine two or more recommendation strategies in…

Information Retrieval · Computer Science 2019-01-15 Erion Çano , Maurizio Morisio

There exist situations of decision-making under information overload in the Internet, where people have an overwhelming number of available options to choose from, e.g. products to buy in an e-commerce site, or restaurants to visit in a…

Social and Information Networks · Computer Science 2021-01-14 Ivan Palomares , Carlos Porcel , Luiz Pizzato , Ido Guy , Enrique Herrera-Viedma