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Recommender systems are typically designed to fulfill end user needs. However, in some domains the users are not the only stakeholders in the system. For instance, in a news aggregator website users, authors, magazines as well as the…

Information Retrieval · Computer Science 2021-02-10 Alireza Gharahighehi , Celine Vens , Konstantinos Pliakos

Recommender systems play an essential role in online services by providing personalized item lists to support users' decision-making processes. While collaborative filtering methods can achieve high accuracy, it is crucial to consider not…

Optimization and Control · Mathematics 2026-03-24 Tomoya Yanagi , Shunnosuke Ikeda , Ken Kobayashi , Yuichi Takano

Graph-based collaborative filtering methods have prevailing performance for recommender systems since they can capture high-order information between users and items, in which the graphs are constructed from the observed user-item…

Information Retrieval · Computer Science 2024-01-24 Hongjian Gu , Yaochen Hu , Yingxue Zhang

Recommender systems are important to help users select relevant and personalised information over massive amounts of data available. We propose an unified framework called Preference Network (PN) that jointly models various types of domain…

Information Retrieval · Computer Science 2014-07-23 Tran The Truyen , Dinh Q. Phung , Svetha Venkatesh

In the world of big data, many people find it difficult to access the information they need quickly and accurately. In order to overcome this, research on the system that recommends information accurately to users is continuously conducted.…

Computers and Society · Computer Science 2019-09-19 Keum Gang Cha , Soo-Ryeon Lee , Jung-Woo Lee , Seung Bin Baik

We focus on the problem of streaming recommender system and explore novel collaborative filtering algorithms to handle the data dynamicity and complexity in a streaming manner. Although deep neural networks have demonstrated the…

Machine Learning · Computer Science 2019-06-12 Qingquan Song , Shiyu Chang , Xia Hu

Recommender systems are crucial to alleviate the information overload problem in online worlds. Most of the modern recommender systems capture users' preference towards items via their interactions based on collaborative filtering…

Information Retrieval · Computer Science 2019-07-17 Wenqi Fan , Yao Ma , Dawei Yin , Jianping Wang , Jiliang Tang , Qing Li

Relevance and diversity are both important to the success of recommender systems, as they help users to discover from a large pool of items a compact set of candidates that are not only interesting but exploratory as well. The challenge is…

Machine Learning · Computer Science 2020-09-29 Yifang Liu , Zhentao Xu , Qiyuan An , Yang Yi , Yanzhi Wang , Trevor Hastie

Recommendation system is important to a content sharing/creating social network. Collaborative filtering is a widely-adopted technology in conventional recommenders, which is based on similarity between positively engaged content items…

Information Retrieval · Computer Science 2019-09-05 Yifang Liu , Zhentao Xu , Cong Hui , Yi Xuan , Jessie Chen , Yuanming Shan

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

Recommender systems are widely applied in digital platforms such as news websites to personalize services based on user preferences. In news websites most of users are anonymous and the only available data is sequences of items in anonymous…

Information Retrieval · Computer Science 2021-12-20 Alireza Gharahighehi , Celine Vens

Recommendation systems are perhaps one of the most important agents for industry growth through the modern Internet world. Previous approaches on recommendation systems include collaborative filtering and content based filtering…

Information Retrieval · Computer Science 2021-12-23 A Nayan Varma , Kedareshwara Petluri

Recommender systems have become an essential tool for providers and users of online services and goods, especially with the increased use of the Internet to access information and purchase products and services. This work proposes a novel…

Information Retrieval · Computer Science 2022-10-17 Abdullah Alhadlaq , Said Kerrache , Hatim Aboalsamh

One of the main challenges in recommender systems is data sparsity which leads to high variance. Several attempts have been made to improve the bias-variance trade-off using auxiliary information. In particular, document modeling-based…

Information Retrieval · Computer Science 2021-09-14 Meysam Varasteh , Mehdi Soleiman Nejad , Hadi Moradi , Mohammad Amin Sadeghi , Ahmad Kalhor

Recommender systems are aimed at generating a personalized ranked list of items that an end user might be interested in. With the unprecedented success of deep learning in computer vision and speech recognition, recently it has been a hot…

Information Retrieval · Computer Science 2018-08-16 Bo Song , Xin Yang , Yi Cao , Congfu Xu

To address the sparsity and cold start problem of collaborative filtering, researchers usually make use of side information, such as social networks or item attributes, to improve recommendation performance. This paper considers the…

Information Retrieval · Computer Science 2018-08-28 Hongwei Wang , Fuzheng Zhang , Jialin Wang , Miao Zhao , Wenjie Li , Xing Xie , Minyi Guo

A recommender system is an important subject in the field of data mining, where the item rating information from users is exploited and processed to make suitable recommendations with all other users. The recommender system creates…

Information Retrieval · Computer Science 2025-06-05 Tin T. Tran , Vaclav Snasel , Loc Tan Nguyen

Influenced by the great success of deep learning in computer vision and language understanding, research in recommendation has shifted to inventing new recommender models based on neural networks. In recent years, we have witnessed…

Information Retrieval · Computer Science 2022-02-17 Le Wu , Xiangnan He , Xiang Wang , Kun Zhang , Meng Wang

Recommendation systems aim to provide personalized predictions by identifying items that are most appealing to individual users. Among various recommendation approaches, k-nearest-neighbor (kNN)-based collaborative filtering (CF) remains…

Information Retrieval · Computer Science 2025-12-16 Yongyu Wang

Recent works in recommendation systems have focused on diversity in recommendations as an important aspect of recommendation quality. In this work we argue that the post-processing algorithms aimed at only improving diversity among…

Computers and Society · Computer Science 2018-07-18 Jurek Leonhardt , Avishek Anand , Megha Khosla