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A recommender system is an information filtering technology which can be used to predict preference ratings of items (products, services, movies, etc) and/or to output a ranking of items that are likely to be of interest to the user.…

Information Retrieval · Computer Science 2019-01-08 Camila V. Sundermann , Marcos A. Domingues , Ricardo M. Marcacini , Solange O. Rezende

As one of the most pervasive applications of machine learning, recommender systems are playing an important role on assisting human decision making. The satisfaction of users and the interests of platforms are closely related to the quality…

Information Retrieval · Computer Science 2023-08-04 Yunqi Li , Hanxiong Chen , Shuyuan Xu , Yingqiang Ge , Juntao Tan , Shuchang Liu , Yongfeng Zhang

Recommender systems rely heavily on the predictive accuracy of the learning algorithm. Most work on improving accuracy has focused on the learning algorithm itself. We argue that this algorithmic focus is myopic. In particular, since…

Human-Computer Interaction · Computer Science 2018-02-22 Tobias Schnabel , Paul N. Bennett , Thorsten Joachims

The concept of privacy is inherently intertwined with human attitudes and behaviours, as most computer systems are primarily designed for human use. Especially in the case of Recommender Systems, which feed on information provided by…

Computers and Society · Computer Science 2018-05-23 Sanchit Alekh

A significant remaining challenge for existing recommender systems is that users may not trust the recommender systems for either lack of explanation or inaccurate recommendation results. Thus, it becomes critical to embrace a trustworthy…

Information Retrieval · Computer Science 2020-10-07 Manqing Dong , Feng Yuan , Lina Yao , Xianzhi Wang , Xiwei Xu , Liming Zhu

While user-modeling and recommender systems successfully utilize items like emails, news, and movies, they widely neglect mind-maps as a source for user modeling. We consider this a serious shortcoming since we assume user modeling based on…

Information Retrieval · Computer Science 2017-03-28 Joeran Beel

Recommender systems are central to modern online platforms, but a popular concern is that they may be pulling society in dangerous directions (e.g., towards filter bubbles). However, a challenge with measuring the effects of recommender…

Computers and Society · Computer Science 2021-10-25 Serina Chang , Johan Ugander

Recommender systems assist users in decision-making, where the presentation of recommended items and their explanations are critical factors for enhancing the overall user experience. Although various methods for generating explanations…

Recommender systems play a central role in numerous real-life applications, yet evaluating their performance remains a significant challenge due to the gap between offline metrics and online behaviors. Given the scarcity and limits (e.g.,…

Information Retrieval · Computer Science 2025-04-18 Nicolas Bougie , Narimasa Watanabe

Recommender systems are a valuable tool for software engineers. For example, they can provide developers with a ranked list of files likely to contain a bug, or multiple auto-complete suggestions for a given method stub. However, the way…

Software Engineering · Computer Science 2022-08-02 Christoph Treude

Digital platforms such as social media and e-commerce websites adopt Recommender Systems to provide value to the user. However, the social consequences deriving from their adoption are still unclear. Many scholars argue that recommenders…

Information Retrieval · Computer Science 2024-09-26 Erica Coppolillo , Simone Mungari , Ettore Ritacco , Francesco Fabbri , Marco Minici , Francesco Bonchi , Giuseppe Manco

In the WWW (World Wide Web), dynamic development and spread of data has resulted a tremendous amount of information available on the Internet, yet user is unable to find relevant information in a short span of time. Consequently, a system…

Information Retrieval · Computer Science 2020-09-11 Denis Selimi , Krenare Pireva Nuci

A recommender system is an important subject in the field of data mining, where the item rating information from users is exploited and processed to make suitable recommendations with all other users. The recommender system creates…

Information Retrieval · Computer Science 2025-06-05 Tin T. Tran , Vaclav Snasel , Loc Tan Nguyen

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

Natural interaction with recommendation and personalized search systems has received tremendous attention in recent years. We focus on the challenge of supporting people's understanding and control of these systems and explore a…

Information Retrieval · Computer Science 2022-05-20 Filip Radlinski , Krisztian Balog , Fernando Diaz , Lucas Dixon , Ben Wedin

Globally, recommendation services have become important due to the fact that they support e-commerce applications and different research communities. Recommender systems have a large number of applications in many fields including economic,…

Information Retrieval · Computer Science 2020-09-01 Xiaomei Bai , Mengyang Wang , Ivan Lee , Zhuo Yang , Xiangjie Kong , Feng Xia

Collaborative information serves as the cornerstone of recommender systems which typically focus on capturing it from user-item interactions to deliver personalized services. However, current understanding of this crucial resource remains…

Information Retrieval · Computer Science 2025-11-27 Xiaokun Zhang , Zhaochun Ren , Bowei He , Ziqiang Cui , Chen Ma

Recommendation system is such a platform that helps people to easily find out the things they need within a few seconds. It is implemented based on the preferences of similar users or items. In this digital era, the internet has provided us…

Information Retrieval · Computer Science 2024-10-01 Mahamudul Hasan , Anika Tasnim Islam , Nabila Islam

Recommender systems have become an essential tool to help resolve the information overload problem in recent decades. Traditional recommender systems, however, suffer from data sparsity and cold start problems. To address these issues, a…

Information Retrieval · Computer Science 2020-07-21 Zhu Sun , Qing Guo , Jie Yang , Hui Fang , Guibing Guo , Jie Zhang , Robin Burke

Providing recommendations that are both relevant and diverse is a key consideration of modern recommender systems. Optimizing both of these measures presents a fundamental trade-off, as higher diversity typically comes at the cost of…

Information Retrieval · Computer Science 2024-08-08 Erica Coppolillo , Giuseppe Manco , Aristides Gionis