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Decision making in crucial applications such as lending, hiring, and college admissions has witnessed increasing use of algorithmic models and techniques as a result of a confluence of factors such as ubiquitous connectivity, ability to…

Artificial Intelligence · Computer Science 2020-09-08 G Roshan Lal , Sahin Cem Geyik , Krishnaram Kenthapadi

As a key application of artificial intelligence, recommender systems are among the most pervasive computer aided systems to help users find potential items of interests. Recently, researchers paid considerable attention to fairness issues…

Information Retrieval · Computer Science 2021-04-26 Le Wu , Lei Chen , Pengyang Shao , Richang Hong , Xiting Wang , Meng Wang

One of the many fairness definitions pursued in recent recommender system research targets mitigating demographic information encoded in model representations. Models optimized for this definition are typically evaluated on how well…

Information Retrieval · Computer Science 2026-03-26 Bjørnar Vassøy , Benjamin Kille , Helge Langseth

Driven by the need to capture users' evolving interests and optimize their long-term experiences, more and more recommender systems have started to model recommendation as a Markov decision process and employ reinforcement learning to…

Information Retrieval · Computer Science 2021-11-02 Dell Zhang , Jun Wang

In recommendation literature, explainability and fairness are becoming two prominent perspectives to consider. However, prior works have mostly addressed them separately, for instance by explaining to consumers why a certain item was…

Information Retrieval · Computer Science 2023-08-24 Ludovico Boratto , Francesco Fabbri , Gianni Fenu , Mirko Marras , Giacomo Medda

In this study, we examined the impact of recommendation systems' algorithms on individuals' collaborator choices when forming teams. Different algorithmic designs can lead individuals to select one collaborator over another, thereby shaping…

Human-Computer Interaction · Computer Science 2024-10-02 Diego Gomez-Zara , Victoria Kam , Charles Chiang , Leslie DeChurch , Noshir Contractor

Algorithmic fairness in recommender systems requires close attention to the needs of a diverse set of stakeholders that may have competing interests. Previous work in this area has often been limited by fixed, single-objective definitions…

Information Retrieval · Computer Science 2024-10-08 Amanda Aird , Elena Štefancová , Cassidy All , Amy Voida , Martin Homola , Nicholas Mattei , Robin Burke

We present a framework for quantifying and mitigating algorithmic bias in mechanisms designed for ranking individuals, typically used as part of web-scale search and recommendation systems. We first propose complementary measures to…

Information Retrieval · Computer Science 2019-09-04 Sahin Cem Geyik , Stuart Ambler , Krishnaram Kenthapadi

Recommender systems have become a pervasive part of our daily online experience, and are one of the most widely used applications of artificial intelligence and machine learning. Therefore, regulations and requirements for trustworthy…

Information Retrieval · Computer Science 2024-07-01 Dominik Kowald

Existing research on fairness-aware recommendation has mainly focused on the quantification of fairness and the development of fair recommendation models, neither of which studies a more substantial problem--identifying the underlying…

Information Retrieval · Computer Science 2022-06-07 Yingqiang Ge , Juntao Tan , Yan Zhu , Yinglong Xia , Jiebo Luo , Shuchang Liu , Zuohui Fu , Shijie Geng , Zelong Li , Yongfeng Zhang

An emerging definition of fairness in machine learning requires that models are oblivious to demographic user information, e.g., a user's gender or age should not influence the model. Personalized recommender systems are particularly prone…

Information Retrieval · Computer Science 2023-08-30 Bjørnar Vassøy , Helge Langseth , Benjamin Kille

With the increasing use and impact of recommender systems in our daily lives, how to achieve fairness in recommendation has become an important problem. Previous works on fairness-aware recommendation mainly focus on a predefined set of…

Information Retrieval · Computer Science 2023-01-26 Yunqi Li , Dingxian Wang , Hanxiong Chen , Yongfeng Zhang

Recommender systems are widely used to provide personalized recommendations to users. Recent research has shown that recommender systems may be subject to different types of biases, such as popularity bias, leading to an uneven distribution…

Information Retrieval · Computer Science 2023-10-03 Giovanni Pellegrini , Vittorio Maria Faraco , Yashar Deldjoo

In social recommender systems, it is crucial that the recommendation models provide equitable visibility for different demographic groups, such as gender or race. Most existing research has addressed this problem by only studying individual…

Social and Information Networks · Computer Science 2026-02-26 Meng Cao , Hussain Hussain , Sandipan Sikdar , Denis Helic , Markus Strohmaier , Roman Kern

Fairness in machine learning has been studied by many researchers. In particular, fairness in recommender systems has been investigated to ensure the recommendations meet certain criteria with respect to certain sensitive features such as…

Information Retrieval · Computer Science 2020-03-27 Himan Abdollahpouri , Robin Burke , Masoud Mansoury

Data-driven predictive solutions predominant in commercial applications tend to suffer from biases and stereotypes, which raises equity concerns. Prediction models may discover, use, or amplify spurious correlations based on gender or other…

Computation and Language · Computer Science 2022-11-28 Abdelrahman Zayed , Prasanna Parthasarathi , Goncalo Mordido , Hamid Palangi , Samira Shabanian , Sarath Chandar

Recommender systems utilize users' historical data to learn and predict their future interests, providing them with suggestions tailored to their tastes. Calibration ensures that the distribution of recommended item categories is consistent…

Information Retrieval · Computer Science 2022-08-23 Mohammadmehdi Naghiaei , Hossein A. Rahmani , Mohammad Aliannejadi , Nasim Sonboli

Online dating platforms have fundamentally transformed the formation of romantic relationships, with millions of users worldwide relying on algorithmic matching systems to find compatible partners. However, current recommendation systems in…

Information Retrieval · Computer Science 2026-01-29 Madhav Kotecha

Recommender systems are known to exhibit fairness issues, particularly on the product side, where products and their associated suppliers receive unequal exposure in recommended results. While this problem has been widely studied in…

Information Retrieval · Computer Science 2025-07-22 Huy-Son Nguyen , Yuanna Liu , Masoud Mansoury , Mohammad Alian Nejadi , Alan Hanjalic , Maarten de Rijke

Fairness in recommender systems has recently received attention from researchers. Unfair recommendations have negative impact on the effectiveness of recommender systems as it may degrade users' satisfaction, loyalty, and at worst, it can…

Information Retrieval · Computer Science 2019-11-05 Masoud Mansoury , Himan Abdollahpouri , Joris Rombouts , Mykola Pechenizkiy