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A central role in shaping the experience of users online is played by recommendation algorithms. On the one hand they help retrieving content that best suits users taste, but on the other hand they may give rise to the so called "filter…

Physics and Society · Physics 2023-11-08 Alessandro Bellina , Claudio Castellano , Paul Pineau , Giulio Iannelli , Giordano De Marzo

Recommender systems are a subset of information filtering systems designed to predict and suggest items that users may find interesting or relevant based on their preferences, behaviors, or interactions. By analyzing user data such as past…

Information Retrieval · Computer Science 2024-10-01 Mahamudul Hasan

Recommender systems for software engineering (RSSEs) assist software engineers in dealing with a growing information overload when discerning alternative development solutions. While RSSEs are becoming more and more effective in suggesting…

Software Engineering · Computer Science 2023-04-21 Phuong T. Nguyen , Riccardo Rubei , Juri Di Rocco , Claudio Di Sipio , Davide Di Ruscio , Massimiliano Di Penta

Many recommender systems suffer from popularity bias: popular items are recommended frequently while less popular, niche products, are recommended rarely or not at all. However, recommending the ignored products in the `long tail' is…

Information Retrieval · Computer Science 2019-08-13 Himan Abdollahpouri , Robin Burke , Bamshad Mobasher

When recommending or advertising items to users, an emerging trend is to present each multimedia item with a key frame image (e.g., the poster of a movie). As each multimedia item can be represented as multiple fine-grained visual images…

Information Retrieval · Computer Science 2020-01-07 Le Wu , Lei Chen , Yonghui Yang , Richang Hong , Yong Ge , Xing Xie , Meng Wang

How to make the best decision between the opinions and tastes of your friends and acquaintances? Therefore, recommender systems are used to solve such issues. The common algorithms use a similarity measure to predict active users' tastes…

Information Retrieval · Computer Science 2019-08-16 Mostafa Khalaji , Nilufar Mohammadnejad

Albeit the widespread application of recommender systems (RecSys) in our daily lives, rather limited research has been done on quantifying unfairness and biases present in such systems. Prior work largely focuses on determining whether a…

Computers and Society · Computer Science 2023-10-13 Valentijn Braun , Debarati Bhaumik , Diptish Dey

Algorithms have an increasing influence on the music that we consume and understanding their behavior is fundamental to make sure they give a fair exposure to all artists across different styles. In this on-going work we contribute to this…

Information Retrieval · Computer Science 2019-11-13 Andres Ferraro , Dmitry Bogdanov , Xavier Serra , Jason Yoon

Recommendation systems underpin the serving of nearly all online content in the modern age. From Youtube and Netflix recommendations, to Facebook feeds and Google searches, these systems are designed to filter content to the predicted…

Information Retrieval · Computer Science 2020-11-10 Emil Noordeh , Roman Levin , Ruochen Jiang , Harris Shadmany

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 for software engineering (RSSE) play a crucial role in automating development tasks by providing relevant suggestions according to the developer's context. However, they suffer from the so-called popularity bias, i.e.,…

Software Engineering · Computer Science 2025-01-20 Claudio Di Sipio , Juri Di Rocco , Davide Di Ruscio , Vladyslav Bulhakov

In this work, we present an approach for mining user preferences and recommendation based on reviews. There have been various studies worked on recommendation problem. However, most of the studies beyond one aspect user generated- content…

Information Retrieval · Computer Science 2017-02-10 Xuan-Son Vu , Seong-Bae Park

The observed ratings in most recommender systems are subjected to popularity bias and are thus not randomly missing. Due to this, only a few popular items are recommended, and a vast number of non-popular items are hardly recommended. Not…

Information Retrieval · Computer Science 2021-09-14 Ajay Gangwar , Shweta Jain

This paper examines the influence of recommender systems on local music representation, discussing prior findings from an empirical study on the LFM-2b public dataset. This prior study argued that different recommender systems exhibit…

Information Retrieval · Computer Science 2024-08-30 Kristina Matrosova , Lilian Marey , Guillaume Salha-Galvan , Thomas Louail , Olivier Bodini , Manuel Moussallam

Recommender systems often operate on item catalogs clustered by genres, and user bases that have natural clusterings into user types by demographic or psychographic attributes. Prior work on system-wide diversity has mainly focused on…

Information Retrieval · Computer Science 2019-08-28 Arda Antikacioglu , Tanvi Bajpai , R. Ravi

Recommender systems leverage extensive user interaction data to model preferences; however, directly modeling these data may introduce biases that disproportionately favor popular items. In this paper, we demonstrate that popularity bias…

Information Retrieval · Computer Science 2025-04-21 Jiahao Liu , Dongsheng Li , Hansu Gu , Peng Zhang , Tun Lu , Li Shang , Ning Gu

Recommender systems have become the dominant means of curating cultural content, significantly influencing individual cultural experience. Since recommender systems tend to optimize for personalized user experience, they can overlook…

Information Retrieval · Computer Science 2023-02-24 Andres Ferraro , Gustavo Ferreira , Fernando Diaz , Georgina Born

Collaborative filtering is a very useful general technique for exploiting the preference patterns of a group of users to predict the utility of items to a particular user. Previous research has studied several probabilistic graphic models…

Information Retrieval · Computer Science 2012-12-12 Rong Jin , Luo Si , ChengXiang Zhai

Social network websites, such as Facebook, YouTube, Lastfm etc, have become a popular platform for users to connect with each other and share content or opinions. They provide rich information for us to study the influence of user's social…

Information Retrieval · Computer Science 2012-06-22 Sanjay Purushotham , Yan Liu , C. -C. Jay Kuo

A huge amount of user generated content related to movies is created with the popularization of web 2.0. With these continues exponential growth of data, there is an inevitable need for recommender systems as people find it difficult to…

Information Retrieval · Computer Science 2019-06-04 Lasitha Uyangoda , Supunmali Ahangama , Tharindu Ranasinghe