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User cold-start problem is a long-standing challenge in recommendation systems. Fortunately, cross-domain recommendation (CDR) has emerged as a highly effective remedy for the user cold-start challenge, with recently developed diffusion…

Information Retrieval · Computer Science 2026-03-04 Xiaodong Li , Juwei Yue , Xinghua Zhang , Jiawei Sheng , Wenyuan Zhang , Taoyu Su , Zefeng Zhang , Tingwen Liu

The trend of data mining using deep learning models on graph neural networks has proven effective in identifying object features through signal encoders and decoders, particularly in recommendation systems utilizing collaborative filtering…

Information Retrieval · Computer Science 2025-03-27 Manh Mai Van , Tin T. Tran

Among the machine learning applications to business, recommender systems would take one of the top places when it comes to success and adoption. They help the user in accelerating the process of search while helping businesses maximize…

Information Retrieval · Computer Science 2019-07-23 Kiran Rama , Pradeep Kumar , Bharat Bhasker

Hybrid recommendation usually combines collaborative filtering with content-based filtering to exploit merits of both techniques. It is widely accepted that hybrid filtering outperforms the single algorithm, thus it has been the new trend…

Social and Information Networks · Computer Science 2019-05-09 Yuchen Xiao , Ruzhe Zhong

Recommender system has attracted lots of attentions since it helps users alleviate the information overload problem. Matrix factorization technique is one of the most widely employed collaborative filtering techniques in the research of…

Information Retrieval · Computer Science 2014-05-06 Yonghong Yu , Can Wang , Yang Gao

Recommendation models that utilize unique identities (IDs) to represent distinct users and items have been state-of-the-art (SOTA) and dominated the recommender systems (RS) literature for over a decade. Meanwhile, the pre-trained modality…

Information Retrieval · Computer Science 2023-05-04 Zheng Yuan , Fajie Yuan , Yu Song , Youhua Li , Junchen Fu , Fei Yang , Yunzhu Pan , Yongxin Ni

Recent works in multimodal recommendations, which leverage diverse modal information to address data sparsity and enhance recommendation accuracy, have garnered considerable interest. Two key processes in multimodal recommendations are…

Information Retrieval · Computer Science 2025-05-23 Jinfeng Xu , Zheyu Chen , Wei Wang , Xiping Hu , Sang-Wook Kim , Edith C. H. Ngai

Cold-start issues have been more and more challenging for providing accurate recommendations with the fast increase of users and items. Most existing approaches attempt to solve the intractable problems via content-aware recommendations…

Information Retrieval · Computer Science 2022-04-04 Yan Zhang , Changyu Li , Ivor W. Tsang , Hui Xu , Lixin Duan , Hongzhi Yin , Wen Li , Jie Shao

The item cold-start problem poses a fundamental challenge for music recommendation: newly added tracks lack the interaction history that collaborative filtering (CF) requires. Existing approaches often address this problem by learning…

Information Retrieval · Computer Science 2026-04-15 Yan-Martin Tamm , Gregor Meehan , Vojtěch Nekl , Vojtěch Vančura , Rodrigo Alves , Johan Pauwels , Anna Aljanaki

In this paper, we study a cold-start problem in recommendation systems where we have completely new users entered the systems. There is not any interaction or feedback of the new users with the systems previoustly, thus no ratings are…

Information Retrieval · Computer Science 2014-05-30 Hai Thanh Nguyen , Jérémie Mary , Philippe Preux

Recommender systems are ubiquitous in the domain of e-commerce, used to improve the user experience and to market inventory, thereby increasing revenue for the site. Techniques such as item-based collaborative filtering are used to model…

Information Retrieval · Computer Science 2018-12-31 Daniel A. Galron , Yuri M. Brovman , Jin Chung , Michal Wieja , Paul Wang

Recent advances in foundation models have led to a promising trend of developing large recommendation models to leverage vast amounts of available data. Still, mainstream models remain embarrassingly small in size and na\"ive enlarging does…

Machine Learning · Computer Science 2024-06-07 Xingzhuo Guo , Junwei Pan , Ximei Wang , Baixu Chen , Jie Jiang , Mingsheng Long

KnowledgeTracing (KT) involves predicting students' knowledge states based on their interactions with Intelligent Tutoring Systems (ITS). A key challenge is the cold start problem, accurately predicting knowledge for new students with…

Computers and Society · Computer Science 2026-02-09 Indronil Bhattacharjee , Christabel Wayllace

Although modern recommendation systems can exploit the structure in users' item feedback, most are powerless in the face of new users who provide no structure for them to exploit. In this paper we introduce ImplicitCE, an algorithm for…

Information Retrieval · Computer Science 2018-09-12 Dan Shiebler

Active preference learning offers an efficient approach to modeling preferences, but it is hindered by the cold-start problem, which leads to a marked decline in performance when no initial labeled data are available. While cold-start…

Machine Learning · Computer Science 2025-11-04 Mojtaba Fayaz-Bakhsh , Danial Ataee , MohammadAmin Fazli

Data often arrives in sequence over time in real-world deep learning applications such as autonomous driving. When new training data is available, training the model from scratch undermines the benefit of leveraging the learned knowledge,…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Maying Shen , Hongxu Yin , Pavlo Molchanov , Lei Mao , Jose M. Alvarez

Embeddings, low-dimensional vector representation of objects, are fundamental in building modern machine learning systems. In industrial settings, there is usually an embedding team that trains an embedding model to solve intended tasks…

Machine Learning · Statistics 2022-06-08 Weihua Hu , Rajas Bansal , Kaidi Cao , Nikhil Rao , Karthik Subbian , Jure Leskovec

Multimodal recommendation focuses primarily on effectively exploiting both behavioral and multimodal information for the recommendation task. However, most existing models suffer from the following issues when fusing information from two…

Information Retrieval · Computer Science 2024-09-10 Kangning Zhang , Yingjie Qin , Jiarui Jin , Yifan Liu , Ruilong Su , Weinan Zhang , Yong Yu

Developing algorithms that are able to generalize to a novel task given only a few labeled examples represents a fundamental challenge in closing the gap between machine- and human-level performance. The core of human cognition lies in the…

Machine Learning · Computer Science 2021-03-23 Kaidi Cao , Maria Brbic , Jure Leskovec

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