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Related papers: MARec: Metadata Alignment for cold-start Recommend…

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In recommender systems, one common challenge is the cold-start problem, where interactions are very limited for fresh users in the systems. To address this challenge, recently, many works introduce the meta-optimization idea into the…

Information Retrieval · Computer Science 2022-06-13 Tianxin Wei , Jingrui He

Traditional recommendation systems rely on past usage data in order to generate new recommendations. Those approaches fail to generate sensible recommendations for new users and items into the system due to missing information about their…

Information Retrieval · Computer Science 2017-06-20 Ivica Obadić , Gjorgji Madjarov , Ivica Dimitrovski , Dejan Gjorgjevikj

In modern recommender systems, experimental settings typically include filtering out cold users and items based on a minimum interaction threshold. However, these thresholds are often chosen arbitrarily and vary widely across studies,…

Information Retrieval · Computer Science 2025-08-12 Danil Gusak , Nikita Sukhorukov , Evgeny Frolov

In recommendation systems, predicting Click-Through Rate (CTR) is crucial for accurately matching users with items. To improve recommendation performance for cold-start and long-tail items, recent studies focus on leveraging item multimodal…

Information Retrieval · Computer Science 2025-08-05 Yining Yao , Ziwei Li , Shuwen Xiao , Boya Du , Jialin Zhu , Junjun Zheng , Xiangheng Kong , Yuning Jiang

Recommender systems are popular in e-commerce as they suggest items of interest to users. Researchers have addressed the cold-start problem where either the user or the item is new. However, the situation with both new user and new item has…

Information Retrieval · Computer Science 2013-05-08 Fan Min , William Zhu

Cold-start problems are enormous challenges in practical recommender systems. One promising solution for this problem is cross-domain recommendation (CDR) which leverages rich information from an auxiliary (source) domain to improve the…

Information Retrieval · Computer Science 2021-05-12 Yongchun Zhu , Kaikai Ge , Fuzhen Zhuang , Ruobing Xie , Dongbo Xi , Xu Zhang , Leyu Lin , Qing He

Making personalized recommendation for cold-start users, who only have a few interaction histories, is a challenging problem in recommendation systems. Recent works leverage hypernetworks to directly map user interaction histories to…

Artificial Intelligence · Computer Science 2023-06-07 Shiguang Wu , Yaqing Wang , Qinghe Jing , Daxiang Dong , Dejing Dou , Quanming Yao

With the rise of e-commerce and short videos, online recommender systems that can capture users' interests and update new items in real-time play an increasingly important role. In both online and offline recommendation systems, the…

Information Retrieval · Computer Science 2025-05-07 Yunze Luo , Yuezihan Jiang , Yinjie Jiang , Gaode Chen , Jingchi Wang , Kaigui Bian , Peiyi Li , Qi Zhang

Cold-start recommendation remains a central challenge in dynamic, open-world platforms, requiring models to recommend for newly registered users (user cold-start) and to recommend newly introduced items to existing users (item cold-start)…

Information Retrieval · Computer Science 2026-04-07 Zhen Zhang , Jujia Zhao , Xinyu Ma , Xin Xin , Maarten de Rijke , Zhaochun Ren

Online video services acquire new content on a daily basis to increase engagement, and improve the user experience. Traditional recommender systems solely rely on watch history, delaying the recommendation of newly added titles to the right…

Information Retrieval · Computer Science 2022-04-05 Jianling Wang , Ainur Yessenalina , Alireza Roshan-Ghias

Recommender systems suffer from the cold-start problem whenever a new user joins the platform or a new item is added to the catalog. To address item cold-start, we propose to replace the embedding layer in sequential recommenders with a…

Information Retrieval · Computer Science 2024-10-02 Kuba Weimann , Tim O. F. Conrad

Pure methods generally perform excellently in either recommendation accuracy or diversity, whereas hybrid methods generally outperform pure cases in both recommendation accuracy and diversity, but encounter the dilemma of optimal…

Information Retrieval · Computer Science 2012-07-26 Tian Qiu , Zi-Ke Zhang , Guang Chen

The item cold-start problem is critical for online recommendation systems, as the success of this phase determines whether high-quality new items can transition to popular ones, receive essential feedback to inspire creators, and thus lead…

Information Retrieval · Computer Science 2025-06-19 Yu-Ting Lan , Yang Huo , Yi Shen , Xiao Yang , Zuotao Liu

There is much empirical evidence that item-item collaborative filtering works well in practice. Motivated to understand this, we provide a framework to design and analyze various recommendation algorithms. The setup amounts to online binary…

Machine Learning · Computer Science 2016-01-11 Guy Bresler , Devavrat Shah , Luis F. Voloch

The item cold-start problem is crucial for online recommender systems, as the success of the cold-start phase determines whether items can transition into popular ones. Prompt learning, a powerful technique used in natural language…

Information Retrieval · Computer Science 2024-12-25 Yuezihan Jiang , Gaode Chen , Wenhan Zhang , Jingchi Wang , Yinjie Jiang , Qi Zhang , Jingjian Lin , Peng Jiang , Kaigui Bian

The cold start problem is a common challenge in various domains, including media use cases such as predicting viewership for newly launched shows on Over-The-Top (OTT) platforms. In this study, we propose a generic approach to tackle cold…

Machine Learning · Computer Science 2023-05-16 K. Ganguly , A. Patra

Facebook Marketplace is quickly gaining momentum among consumers as a favored customer-to-customer (C2C) product trading platform. The recommendation system behind it helps to significantly improve the user experience. Building the…

Information Retrieval · Computer Science 2018-06-01 Lu Zheng , Zhao Tan , Kun Han , Ren Mao

This paper proposes Text mAtching based SequenTial rEcommendation model (TASTE), which maps items and users in an embedding space and recommends items by matching their text representations. TASTE verbalizes items and user-item interactions…

Information Retrieval · Computer Science 2023-08-29 Zhenghao Liu , Sen Mei , Chenyan Xiong , Xiaohua Li , Shi Yu , Zhiyuan Liu , Yu Gu , Ge Yu

Practical recommender systems experience a cold-start problem when observed user-item interactions in the history are insufficient. Meta learning, especially gradient based one, can be adopted to tackle this problem by learning initial…

Information Retrieval · Computer Science 2021-11-01 Xidong Feng , Chen Chen , Dong Li , Mengchen Zhao , Jianye Hao , Jun Wang

Federated recommendation system usually trains a global model on the server without direct access to users' private data on their own devices. However, this separation of the recommendation model and users' private data poses a challenge in…

Information Retrieval · Computer Science 2024-02-27 Chunxu Zhang , Guodong Long , Tianyi Zhou , Zijian Zhang , Peng Yan , Bo Yang