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Related papers: Challenging the Long Tail Recommendation

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Large Language Models (LLMs) have been widely applied across multiple domains for their broad knowledge and strong reasoning capabilities. However, applying them to recommendation systems is challenging since it is hard for LLMs to extract…

Information Retrieval · Computer Science 2026-02-05 Yinan Zhang , Zhixi Chen , Jiazheng Jing , Zhiqi Shen

Although the bipartite shopping graphs are straightforward to model search behavior, they suffer from two challenges: 1) The majority of items are sporadically searched and hence have noisy/sparse query associations, leading to a…

Information Retrieval · Computer Science 2022-11-30 Yan Han , Edward W Huang , Wenqing Zheng , Nikhil Rao , Zhangyang Wang , Karthik Subbian

This project develops an online, inductive recommendation system for newly listed products on e-commerce platforms, focusing on suggesting relevant new items to customers as they purchase other products. Using the Amazon Product…

Social and Information Networks · Computer Science 2025-06-04 Minghao Liu , Catherine Zhao , Nathan Zhou

With the arrival of the big data era, recommendation system has been a hot technology for enterprises to streamline their sales. Recommendation algorithms for individual users have been extensively studied over the past decade. Most…

Information Retrieval · Computer Science 2017-08-25 Xu Jiacheng

Aggregated data in real world recommender applications often feature fat-tailed distributions of the number of times individual items have been rated or favored. We propose a model to simulate such data. The model is mainly based on social…

Physics and Society · Physics 2012-08-14 Marcel Blattner , Matus Medo

Popularity bias is a well-known phenomenon in recommender systems: popular items are recommended even more frequently than their popularity would warrant, amplifying long-tail effects already present in many recommendation domains. Prior…

Information Retrieval · Computer Science 2020-07-27 Himan Abdollahpouri , Masoud Mansoury , Robin Burke , Bamshad Mobasher

We consider the problem of recommending relevant content to users of an internet platform in the form of lists of items, called slates. We introduce a variational Bayesian Recurrent Neural Net recommender system that acts on time series of…

Machine Learning · Statistics 2021-05-03 Simen Eide , David S. Leslie , Arnoldo Frigessi

Personalized recommendation systems shape much of user choice online, yet their targeted nature makes separating out the value of recommendation and the underlying goods challenging. We build a discrete choice model that embeds…

General Economics · Economics 2026-03-30 Kevin Zielnicki , Guy Aridor , Aurélien Bibaut , Allen Tran , Winston Chou , Nathan Kallus

Rank models play a key role in industrial recommender systems, advertising, and search engines. Existing works utilize semantic tags and user-item interaction behaviors, e.g., clicks, views, etc., to predict the user interest and the item…

Information Retrieval · Computer Science 2023-02-17 Xuanji Xiao , Ziyu He

Recommender systems are known to suffer from the popularity bias problem: popular (i.e. frequently rated) items get a lot of exposure while less popular ones are under-represented in the recommendations. Research in this area has been…

Information Retrieval · Computer Science 2019-09-20 Himan Abdollahpouri , Masoud Mansoury , Robin Burke , Bamshad Mobasher

Recommender systems are often biased toward popular items. In other words, few items are frequently recommended while the majority of items do not get proportionate attention. That leads to low coverage of items in recommendation lists…

Information Retrieval · Computer Science 2020-05-05 Masoud Mansoury , Himan Abdollahpouri , Mykola Pechenizkiy , Bamshad Mobasher , Robin Burke

Building a recommendation system that serves billions of users on daily basis is a challenging problem, as the system needs to make astronomical number of predictions per second based on real-time user behaviors with O(1) time complexity.…

Information Retrieval · Computer Science 2020-10-13 Xiaoyong Yang , Yadong Zhu , Yi Zhang , Xiaobo Wang , Quan Yuan

Recommender systems have become an essential instrument in a wide range of industries to personalize the user experience. A significant issue that has captured both researchers' and industry experts' attention is the cold start problem for…

Machine Learning · Computer Science 2020-12-03 Ivan Maksimov , Rodrigo Rivera-Castro , Evgeny Burnaev

As a pivotal tool to alleviate the information overload problem, recommender systems aim to predict user's preferred items from millions of candidates by analyzing observed user-item relations. As for alleviating the sparsity and cold start…

Information Retrieval · Computer Science 2022-05-24 Yue Deng

Recommendation systems aim to assist users to discover most preferred contents from an ever-growing corpus of items. Although recommenders have been greatly improved by deep learning, they still faces several challenges: (1) Behaviors are…

Information Retrieval · Computer Science 2020-11-19 Wendi Ji , Keqiang Wang , Xiaoling Wang , TingWei Chen , Alexandra Cristea

Predicting the future popularity of online content is highly important in many applications. Preferential attachment phenomena is encountered in scale free networks.Under it's influece popular items get more popular thereby resulting in…

Information Retrieval · Computer Science 2016-04-06 Khushnood Abbas , Shang Mingsheng , Luo Xin

Recommender systems have been actively studied and applied in various domains to deal with information overload. Although there are numerous studies on recommender systems for movies, music, and e-commerce, comparatively less attention has…

Information Retrieval · Computer Science 2024-04-04 Minjoo Choi , Seonmi Kim , Yejin Kim , Youngbin Lee , Joohwan Hong , Yongjae Lee

Recommender Systems are an integral part of music sharing platforms. Often the aim of these systems is to increase the time, the user spends on the platform and hence having a high commercial value. The systems which aim at increasing the…

Information Retrieval · Computer Science 2018-11-21 Noveen Sachdeva , Kartik Gupta , Vikram Pudi

Recommender systems play a crucial role in shaping information we encounter online, whether on social media or when using content platforms, thereby influencing our beliefs, choices, and behaviours. Many recent works address the issue of…

Information Retrieval · Computer Science 2024-10-07 Václav Blahut , Karel Koupil

Last year has witnessed the considerable interest of Large Language Models (LLMs) for their potential applications in recommender systems, which may mitigate the persistent issue of data sparsity. Though large efforts have been made for…

Information Retrieval · Computer Science 2024-05-14 Ziwei Zhao , Fake Lin , Xi Zhu , Zhi Zheng , Tong Xu , Shitian Shen , Xueying Li , Zikai Yin , Enhong Chen