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This paper presents a diffusion-based recommender system that incorporates classifier-free guidance. Most current recommender systems provide recommendations using conventional methods such as collaborative or content-based filtering.…

Information Retrieval · Computer Science 2024-09-17 Noah Buchanan , Susan Gauch , Quan Mai

In this paper, we study the problem of recommendation system where the users and items to be recommended are rich data structures with multiple entity types and with multiple sources of side-information in the form of graphs. We provide a…

In social tagging systems, also known as folksonomies, users collaboratively manage tags to annotate resources. Naturally, social tagging systems can be modeled as a tripartite hypergraph, where there are three different types of nodes,…

Social and Information Networks · Computer Science 2011-10-17 Xin Liu , Tsuyoshi Murata

With the development of Internet technology and the expansion of social networks, online platforms have become an important way for people to obtain information. The introduction of tags facilitates information categorization and retrieval.…

Information Retrieval · Computer Science 2023-10-10 Bing Liu , Pengyu Xu , Sijin Lu , Shijing Wang , Hongjian Sun , Liping Jing

Collaborative filtering is one of the most used approaches for providing recommendations in various online environments. Even though collaborative recommendation methods have been widely utilized due to their simplicity and ease of use,…

Information Retrieval · Computer Science 2018-04-25 Nikolaos Polatidis , Christos K. Georgiadis

In order to provide high-quality recommendations for users, it is desirable to share and integrate multiple datasets held by different parties. However, when sharing such distributed datasets, we need to protect personal and confidential…

Information Retrieval · Computer Science 2024-06-05 Tomoya Yanagi , Shunnosuke Ikeda , Noriyoshi Sukegawa , Yuichi Takano

Recommender systems play an increasingly important role in online applications to help users find what they need or prefer. Collaborative filtering algorithms that generate predictions by analyzing the user-item rating matrix perform poorly…

Information Retrieval · Computer Science 2016-09-28 Zhao Kang , Chong Peng , Ming Yang , Qiang Cheng

Although recommenders can ship items to users automatically based on the users' preferences, they often cause unfairness to groups or individuals. For instance, when users can be divided into two groups according to a sensitive social…

Information Retrieval · Computer Science 2024-10-07 Zhenhao Jiang , Jicong Fan

Recommender systems are used with the purpose of suggesting contents and resources to the users in a social network. These systems use ranks or tags each user assign to different resources to predict or make suggestions to users. Lately,…

Social and Information Networks · Computer Science 2021-05-05 Hossein Monshizadeh Naeen , Mehrdad Jalali

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

In this paper, based on a weighted projection of bipartite user-object network, we introduce a personalized recommendation algorithm, called the \emph{network-based inference} (NBI), which has higher accuracy than the classical algorithm,…

Physics and Society · Physics 2009-12-07 Tao Zhou , Riqi Su , Runran Liu , Luoluo Jiang , Bing-Hong Wang , Yi-Cheng Zhang

This paper leverages heterogeneous auxiliary information to address the data sparsity problem of recommender systems. We propose a model that learns a shared feature space from heterogeneous data, such as item descriptions, product tags and…

Machine Learning · Computer Science 2018-12-18 Tianyu Li , Yukun Ma , Jiu Xu , Bjorn Stenger , Chen Liu , Yu Hirate

Recommendation systems and content filtering approaches based on annotations and ratings, essentially rely on users expressing their preferences and interests through their actions, in order to provide personalised content. This activity,…

Information Retrieval · Computer Science 2016-05-24 Silvia Puglisi , Javier Parra-Arnau , Jordi Forné , David Rebollo-Monedero

Online platforms aggregate extensive user feedback across diverse behaviors, providing a rich source for enhancing user engagement. Traditional recommender systems, however, typically optimize for a single target behavior and represent user…

Information Retrieval · Computer Science 2025-05-06 Xiao Zhou , Zhongxiang Zhao , Hanze Guo

The dynamic environment in the real world calls for the adaptive techniques for information filtering, namely to provide real-time responses to the changes of system data. Where many incremental algorithms are designed for this purpose,…

Information Retrieval · Computer Science 2009-11-26 Ci-Hang Jin , Jian-Guo Liu , Yi-Cheng Zhang , Tao Zhou

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

With the incredibly growing amount of multimedia data shared on the social media platforms, recommender systems have become an important necessity to ease users' burden on the information overload. In such a scenario, extensive amount of…

Information Retrieval · Computer Science 2016-04-26 Xianming Liu , Min-Hsuan Tsai , Thomas Huang

Recommender systems are promising ways to filter the overabundant information in modern society. Their algorithms help individuals to explore decent items, but it is unclear how they allocate popularity among items. In this paper, we…

Physics and Society · Physics 2015-05-28 An Zeng , Chi Ho Yeung , Mingsheng Shang , Yi-Cheng Zhang

Similar product recommendation is one of the most common scenes in e-commerce. Many recommendation algorithms such as item-to-item Collaborative Filtering are working on measuring item similarities. In this paper, we introduce our real-time…

Information Retrieval · Computer Science 2020-04-14 Zhi Liu , Yan Huang , Jing Gao , Li Chen , Dong Li

Recommender systems are designed to predict user preferences over collections of items. These systems process users' previous interactions to decide which items should be ranked higher to satisfy their desires. An ensemble recommender…

Information Retrieval · Computer Science 2023-06-23 Alireza Gharahighehi , Celine Vens , Konstantinos Pliakos