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Recommender systems (RSs) are software tools and algorithms developed to alleviate the problem of information overload, which makes it difficult for a user to make right decisions. Two main paradigms toward the recommendation problem are…

Information Retrieval · Computer Science 2021-05-24 Mehdi Afsar , Trafford Crump , Behrouz Far

Precise user and item embedding learning is the key to building a successful recommender system. Traditionally, Collaborative Filtering(CF) provides a way to learn user and item embeddings from the user-item interaction history. However,…

Information Retrieval · Computer Science 2019-04-24 Le Wu , Peijie Sun , Yanjie Fu , Richang Hong , Xiting Wang , Meng Wang

Click-Through Rate (CTR) prediction on cold users is a challenging task in recommender systems. Recent researches have resorted to meta-learning to tackle the cold-user challenge, which either perform few-shot user representation learning…

Information Retrieval · Computer Science 2022-10-31 Yanyan Shen , Lifan Zhao , Weiyu Cheng , Zibin Zhang , Wenwen Zhou , Kangyi Lin

This paper addresses two persistent challenges in sequential recommendation: (i) evidence insufficiency-cold-start sparsity together with noisy, length-varying item texts; and (ii) opaque modeling of dynamic, multi-faceted intents across…

Information Retrieval · Computer Science 2026-04-29 Yuchen Miao , Mingxuan Cui , Yitong Zhu , Yu Wang , Siyang Xu

The exploding popularity of online content and its user base poses an evermore challenging matching problem for modern recommendation systems. Unlike other frontiers of machine learning such as natural language, recommendation systems are…

Information Retrieval · Computer Science 2024-12-09 Hong Jun Jeon , Songbin Liu , Yuantong Li , Jie Lyu , Hunter Song , Ji Liu , Peng Wu , Zheqing Zhu

Sequential recommendation systems alleviate the problem of information overload, and have attracted increasing attention in the literature. Most prior works usually obtain an overall representation based on the user's behavior sequence,…

Information Retrieval · Computer Science 2022-08-12 Gaode Chen , Xinghua Zhang , Yanyan Zhao , Cong Xue , Ji Xiang

Predicting Click-Through Rates is a crucial function within recommendation and advertising platforms, as the output of CTR prediction determines the order of items shown to users. The Embedding \& MLP paradigm has become a standard approach…

Information Retrieval · Computer Science 2025-04-10 Wenqiao Zhu , Lulu Wang , Jun Wu

Cold-start recommendation is one of the major challenges faced by recommender systems (RS). Herein, we focus on the user cold-start problem. Recently, methods utilizing side information or meta-learning have been used to model cold-start…

Information Retrieval · Computer Science 2023-09-28 Xiangyu Zhang , Zongqiang Kuang , Zehao Zhang , Fan Huang , Xianfeng Tan

Personalization and recommendations are now accepted as core competencies in just about every online setting, ranging from media platforms to e-commerce to social networks. While the challenge of estimating user preferences has garnered…

Artificial Intelligence · Computer Science 2020-11-18 Vivek F. Farias , Andrew A. Li , Deeksha Sinha

Multimodal recommender systems leverage diverse data sources, such as user interactions, content features, and contextual information, to address challenges like cold-start and data sparsity. However, existing methods often suffer from one…

Information Retrieval · Computer Science 2026-02-24 Adamya Shyam , Venkateswara Rao Kagita , Bharti Rana , Vikas Kumar

With the global transformation of the fashion industry and a rise in the demand for fashion items worldwide, the need for an effectual fashion recommendation has never been more. Despite various cutting-edge solutions proposed in the past…

Computer Vision and Pattern Recognition · Computer Science 2021-09-14 Dhruv Verma , Kshitij Gulati , Rajiv Ratn Shah

In this paper, we focus on the problem of modeling dynamic geo-human interactions in streams for online POI recommendations. Specifically, we formulate the in-stream geo-human interaction modeling problem into a novel deep interactive…

Information Retrieval · Computer Science 2022-10-14 Dongjie Wang , Kunpeng Liu , Hui Xiong , Yanjie Fu

Recommender system is a very promising way to address the problem of overabundant information for online users. Though the information filtering for the online commercial systems received much attention recently, almost all of the previous…

Physics and Society · Physics 2012-12-20 Fuguo Zhang , An Zeng

Recommendation for new users, also called user cold start, has been a well-recognized challenge for online recommender systems. Most existing methods view the crux as the lack of initial data. However, in this paper, we argue that there are…

Information Retrieval · Computer Science 2021-08-25 Shangfeng Dai , Haobin Lin , Zhichen Zhao , Jianying Lin , Honghuan Wu , Zhe Wang , Sen Yang , Ji Liu

Point-of-Interest (POI) recommender systems provide personalized recommendations to users and help businesses attract potential customers. Despite their success, recent studies suggest that highly data-driven recommendations could be…

Information Retrieval · Computer Science 2022-04-11 Hossein A. Rahmani , Yashar Deldjoo , Ali Tourani , Mohammadmehdi Naghiaei

What enables large language models (LLMs) to effectively model user preferences in sequential recommendation? Our investigation reveals that existing preference-alignment approaches largely rely on binary pairwise comparisons, overlooking…

Information Retrieval · Computer Science 2026-04-20 Zhongyu Ouyang , Qianlong Wen , Chunhui Zhang , Yanfang Ye , Soroush Vosoughi

Person re-identification (reID) aims at retrieving a person from images captured by different cameras. For deep-learning-based reID methods, it has been proved that using local features together with global feature could help to give robust…

Computer Vision and Pattern Recognition · Computer Science 2022-01-11 Zhijun He , Hongbo Zhao , Wenquan Feng

In recommender systems (RSs), predicting the next item that a user interacts with is critical for user retention. While the last decade has seen an explosion of RSs aimed at identifying relevant items that match user preferences, there is…

Machine Learning · Computer Science 2021-03-02 Zekarias T. Kefato , Sarunas Girdzijauskas , Nasrullah Sheikh , Alberto Montresor

Recommender systems have been widely adopted by electronic commerce and entertainment industries for individualized prediction and recommendation, which benefit consumers and improve business intelligence. In this article, we propose an…

Machine Learning · Statistics 2017-11-07 Xuan Bi , Annie Qu , Xiaotong Shen

User identity linkage is a task of recognizing the identities of the same user across different social networks (SN). Previous works tackle this problem via estimating the pairwise similarity between identities from different SN, predicting…

Machine Learning · Computer Science 2019-11-01 Xiaoxue Li , Yanan Cao , Yanmin Shang , Yangxi Li , Yanbing Liu , Jianlong Tan