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Recent work on machine learning has begun to consider issues of fairness. In this paper, we extend the concept of fairness to recommendation. In particular, we show that in some recommendation contexts, fairness may be a multisided concept,…

Computers and Society · Computer Science 2017-07-11 Robin Burke

There has been growing attention on fairness considerations recently, especially in the context of intelligent decision making systems. Explainable recommendation systems, in particular, may suffer from both explanation bias and performance…

Information Retrieval · Computer Science 2020-06-30 Zuohui Fu , Yikun Xian , Ruoyuan Gao , Jieyu Zhao , Qiaoying Huang , Yingqiang Ge , Shuyuan Xu , Shijie Geng , Chirag Shah , Yongfeng Zhang , Gerard de Melo

Fairness is a critical concept in ethics and social domains, but it is also a challenging property to engineer in software systems. With the increasing use of machine learning in software systems, researchers have been developing techniques…

Software Engineering · Computer Science 2025-01-29 Giordano d'Aloisio , Claudio Di Sipio , Antinisca Di Marco , Davide Di Ruscio

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

In large-scale recommendation systems, the vast array of items makes it infeasible to obtain accurate user preferences for each product, resulting in a common issue of missing labels. Typically, only items previously recommended to users…

Information Retrieval · Computer Science 2024-06-11 Yulong Dong , Kun Jin , Xinghai Hu , Yang Liu

Synthetic data is a useful resource for algorithmic research. It allows for the evaluation of systems under a range of conditions that might be difficult to achieve in real world settings. In recommender systems, the use of synthetic data…

Information Retrieval · Computer Science 2024-09-24 Elena Stefancova , Cassidy All , Joshua Paup , Martin Homola , Nicholas Mattei , Robin Burke

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…

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

Ranked lists are frequently used by information retrieval (IR) systems to present results believed to be relevant to the users information need. Fairness is a relatively new but important aspect of these rankings to measure, joining a rich…

Information Retrieval · Computer Science 2022-01-11 Amifa Raj , Michael D. Ekstrand

Ensuring fair outcomes for multiple stakeholders in recommender systems has been studied mostly in terms of algorithmic interventions: building new models with better fairness properties, or using reranking to improve outcomes from an…

Information Retrieval · Computer Science 2025-09-30 Elizabeth McKinnie , Anas Buhayh , Clement Canel , Robin Burke

Despite the success of recommender systems in alleviating information overload, fairness issues have raised concerns in recent years, potentially leading to unequal treatment for certain user groups. While efforts have been made to improve…

Information Retrieval · Computer Science 2025-05-27 Haoran Xin , Ying Sun , Chao Wang , Yanke Yu , Weijia Zhang , Hui Xiong

Recommender systems are usually designed by engineers, researchers, designers, and other members of development teams. These systems are then evaluated based on goals set by the aforementioned teams and other business units of the platforms…

Human-Computer Interaction · Computer Science 2025-08-07 Michael D. Ekstrand , Afsaneh Razi , Aleksandra Sarcevic , Maria Soledad Pera , Robin Burke , Katherine Landau Wright

Recommender systems are effective tools for mitigating information overload and have seen extensive applications across various domains. However, the single focus on utility goals proves to be inadequate in addressing real-world concerns,…

Information Retrieval · Computer Science 2024-03-05 Yuying Zhao , Yu Wang , Yunchao Liu , Xueqi Cheng , Charu Aggarwal , Tyler Derr

Software systems are increasingly making decisions on behalf of humans, raising concerns about the fairness of such decisions. Such concerns are usually attributed to flaws in algorithmic design or biased data, but we argue that they are…

Software Engineering · Computer Science 2021-04-09 Ali Farahani , Liliana Pasquale , Amel Bennaceur , Thomas Welsh , Bashar Nuseibeh

Recommender systems are present in many web applications to guide our choices. They increase sales and benefit sellers, but whether they benefit customers by providing relevant products is questionable. Here we introduce a model to examine…

Computers and Society · Computer Science 2017-01-27 Chi Ho Yeung

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

The applications of personalized recommender systems are rapidly expanding: encompassing social media, online shopping, search engine results, and more. These systems offer a more efficient way to navigate the vast array of items available.…

Information Retrieval · Computer Science 2023-09-22 Jennifer Chien , David Danks

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

Recommender systems are being employed across an increasingly diverse set of domains that can potentially make a significant social and individual impact. For this reason, considering fairness is a critical step in the design and evaluation…

Information Retrieval · Computer Science 2020-09-21 Charles Dickens , Rishika Singh , Lise Getoor

In collaborative recommendation systems, privacy may be compromised, as users' opinions are used to generate recommendations for others. In this paper, we consider an online collaborative recommendation system, and we measure users' privacy…

Cryptography and Security · Computer Science 2015-10-30 Seth Gilbert , Xiao Liu , Haifeng Yu