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Learning large-scale industrial recommender system models by fitting them to historical user interaction data makes them vulnerable to conformity bias. This may be due to a number of factors, including the fact that user interests may be…

Information Retrieval · Computer Science 2023-04-19 Ameya Raul , Amey Porobo Dharwadker , Brad Schumitsch

Reinforcement learning (RL) has gained traction for enhancing user long-term experiences in recommender systems by effectively exploring users' interests. However, modern recommender systems exhibit distinct user behavioral patterns among…

Information Retrieval · Computer Science 2024-05-24 Changshuo Zhang , Sirui Chen , Xiao Zhang , Sunhao Dai , Weijie Yu , Jun Xu

Today's recommender systems are criticized for recommending items that are too obvious to arouse users' interest. That's why the recommender systems research community has advocated some "beyond accuracy" evaluation metrics such as novelty,…

Information Retrieval · Computer Science 2020-02-18 Fakhri Abbas , Xi Niu

Emerging short-video platforms like TikTok, Instagram Reels, and ShareChat present unique challenges for recommender systems, primarily originating from a continuous stream of new content. ShareChat alone receives approximately 2 million…

Information Retrieval · Computer Science 2024-05-29 Srijan Saket , Olivier Jeunen , Md. Danish Kalim

We consider an online model for recommendation systems, with each user being recommended an item at each time-step and providing 'like' or 'dislike' feedback. A latent variable model specifies the user preferences: both users and items are…

Machine Learning · Statistics 2025-04-29 Mina Karzand , Guy Bresler

Search queries are appropriate when users have explicit intent, but they perform poorly when the intent is difficult to express or if the user is simply looking to be inspired. Visual browsing systems allow e-commerce platforms to address…

Information Retrieval · Computer Science 2018-10-04 Choon Hui Teo , Houssam Nassif , Daniel Hill , Sriram Srinavasan , Mitchell Goodman , Vijai Mohan , SVN Vishwanathan

Information personalization refers to the automatic adjustment of information content, structure, and presentation tailored to an individual user. By reducing information overload and customizing information access, personalization systems…

Information Retrieval · Computer Science 2007-05-23 Naren Ramakrishnan , Saverio Perugini

Recommender systems are vital for shaping user online experiences. While some believe they may limit new content exploration and promote opinion polarization, a systematic analysis is still lacking. We present a model that explores the…

Physics and Society · Physics 2023-12-15 Giordano De Marzo , Pietro Gravino , Vittorio Loreto

In this paper, we propose a novel tag-based recommender system called PLIERS, which relies on the assumption that users are mainly interested in items and tags with similar popularity to those they already own. PLIERS is aimed at reaching a…

Information Retrieval · Computer Science 2023-07-07 Valerio Arnaboldi , Mattia Giovanni Campana , Franca Delmastro , Elena Pagani

Peer production platforms like Wikipedia commonly suffer from content gaps. Prior research suggests recommender systems can help solve this problem, by guiding editors towards underrepresented topics. However, it remains unclear whether…

Computers and Society · Computer Science 2024-04-11 Mo Houtti , Isaac Johnson , Morten Warncke-Wang , Loren Terveen

Conversational recommenders are emerging as a powerful tool to personalize a user's recommendation experience. Through a back-and-forth dialogue, users can quickly hone in on just the right items. Many approaches to conversational…

Information Retrieval · Computer Science 2023-02-15 Allen Lin , Ziwei Zhu , Jianling Wang , James Caverlee

Personalized recommendation systems (RS) are extensively used in many services. Many of these are based on learning algorithms where the RS uses the recommendation history and the user response to learn an optimal strategy. Further, these…

Information Retrieval · Computer Science 2018-03-26 Rahul Meshram , D. Manjunath , Nikhil Karamchandani

System-provided explanations for recommendations are an important component towards transparent and trustworthy AI. In state-of-the-art research, this is a one-way signal, though, to improve user acceptance. In this paper, we turn the role…

Information Retrieval · Computer Science 2021-05-04 Azin Ghazimatin , Soumajit Pramanik , Rishiraj Saha Roy , Gerhard Weikum

There are roughly three stages in real industrial recommendation systems, candidates generation (retrieval), ranking and reranking. Individual-level diversity and system-level diversity are both important for industrial recommender systems.…

Machine Learning · Computer Science 2023-06-02 Shuai Yang , Lixin Zhang , Feng Xia , Leyu Lin

We propose a new online learning model for learning with preference feedback. The model is especially suited for applications like web search and recommender systems, where preference data is readily available from implicit user feedback…

Machine Learning · Computer Science 2011-11-04 Pannagadatta K. Shivaswamy , Thorsten Joachims

Visualization recommendation work has focused solely on scoring visualizations based on the underlying dataset and not the actual user and their past visualization feedback. These systems recommend the same visualizations for every user,…

Information Retrieval · Computer Science 2021-02-15 Xin Qian , Ryan A. Rossi , Fan Du , Sungchul Kim , Eunyee Koh , Sana Malik , Tak Yeon Lee , Nesreen K. Ahmed

User retention is a critical objective for online platforms like Pinterest, as it strengthens user loyalty and drives growth through repeated engagement. A key indicator of retention is revisitation, i.e., when users return to view…

Information Retrieval · Computer Science 2025-11-25 Weijie Jiang , Armando Ordorica , Jaewon Yang , Olafur Gudmundsson , Yucheng Tu , Huizhong Duan

Recommender systems are software applications that help users find items of interest in situations of information overload in a personalized way, using knowledge about the needs and preferences of individual users. In conversational…

Artificial Intelligence · Computer Science 2022-02-10 Tommaso Di Noia , Francesco Donini , Dietmar Jannach , Fedelucio Narducci , Claudio Pomo

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

Recommender systems mainly tailor personalized recommendations according to user interests learned from user feedback. However, such recommender systems passively cater to user interests and even reinforce existing interests in the feedback…

Information Retrieval · Computer Science 2024-03-13 Shuxian Bi , Wenjie Wang , Hang Pan , Fuli Feng , Xiangnan He