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Related papers: Semantics-Aware Denoising: A PLM-Guided Sample Rew…

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Implicit feedback, often used to build recommender systems, unavoidably confronts noise due to factors such as misclicks and position bias. Previous studies have attempted to alleviate this by identifying noisy samples based on their…

Information Retrieval · Computer Science 2024-09-17 Tianrui Song , Wenshuo Chao , Hao Liu

Recommender systems are crucial for personalizing user experiences but often depend on implicit feedback data, which can be noisy and misleading. Existing denoising studies involve incorporating auxiliary information or learning strategies…

Information Retrieval · Computer Science 2025-02-14 Shuyao Wang , Zhi Zheng , Yongduo Sui , Hui Xiong

Sequential recommendation aims to capture user preferences by modeling sequential patterns in user-item interactions. However, these models are often influenced by noise such as accidental interactions, leading to suboptimal performance.…

Information Retrieval · Computer Science 2025-10-07 Tongzhou Wu , Yuhao Wang , Maolin Wang , Chi Zhang , Xiangyu Zhao

Implicit feedback is central to modern recommender systems but is inherently noisy, often impairing model training and degrading user experience. At scale, such noise can mislead learning processes, reducing both recommendation accuracy and…

Information Retrieval · Computer Science 2025-10-13 Ze Liu , Xianquan Wang , Shuochen Liu , Jie Ma , Huibo Xu , Yupeng Han , Kai Zhang , Jun Zhou

The ubiquity of implicit feedback makes them the default choice to build online recommender systems. While the large volume of implicit feedback alleviates the data sparsity issue, the downside is that they are not as clean in reflecting…

Information Retrieval · Computer Science 2021-01-05 Wenjie Wang , Fuli Feng , Xiangnan He , Liqiang Nie , Tat-Seng Chua

While implicit feedback is foundational to modern recommender systems, factors such as human error, uncertainty, and ambiguity in user behavior inevitably introduce significant noise into this feedback, adversely affecting the accuracy and…

Information Retrieval · Computer Science 2025-02-04 Kaike Zhang , Qi Cao , Yunfan Wu , Fei Sun , Huawei Shen , Xueqi Cheng

In real-world scenarios, most platforms collect both large-scale, naturally noisy implicit feedback and small-scale yet highly relevant explicit feedback. Due to the issue of data sparsity, implicit feedback is often the default choice for…

Information Retrieval · Computer Science 2023-05-29 Yingqiang Ge , Mostafa Rahmani , Athirai Irissappane , Jose Sepulveda , James Caverlee , Fei Wang

Item IDs form the backbone of industrial recommender systems, but suffer from representation instability and poor long-tail generalization in large, dynamic item corpora. Semantic IDs (SIDs) mitigate these issues by enabling knowledge…

Information Retrieval · Computer Science 2026-03-12 Yi Xu , Moyu Zhang , Chaofan Fan , Jinxin Hu , Xiaochen Li , Yu Zhang , Xiaoyi Zeng , Jing Zhang

Implicit feedback, employed in training recommender systems, unavoidably confronts noise due to factors such as misclicks and position bias. Previous studies have attempted to identify noisy samples through their diverged data patterns,…

Information Retrieval · Computer Science 2025-11-12 Tianrui Song , Wen-Shuo Chao , Hao Liu

The ubiquity of implicit feedback makes it indispensable for building recommender systems. However, it does not actually reflect the actual satisfaction of users. For example, in E-commerce, a large portion of clicks do not translate to…

Information Retrieval · Computer Science 2021-12-03 Wenjie Wang , Fuli Feng , Xiangnan He , Liqiang Nie , Tat-Seng Chua

Implicit feedback -- the main data source for training Recommender Systems (RSs) -- is inherently noisy and has been shown to negatively affect recommendation effectiveness. Denoising has been proposed as a method for removing noisy…

Information Retrieval · Computer Science 2026-01-27 Ervin Dervishaj , Maria Maistro , Tuukka Ruotsalo , Christina Lioma

The implicit feedback (e.g., clicks) in real-world recommender systems is often prone to severe noise caused by unintentional interactions, such as misclicks or curiosity-driven behavior. A common approach to denoising this feedback is…

Information Retrieval · Computer Science 2025-04-01 Zongwei Wang , Min Gao , Junliang Yu , Yupeng Hou , Shazia Sadiq , Hongzhi Yin

Learning from implicit feedback is one of the most common cases in the application of recommender systems. Generally speaking, interacted examples are considered as positive while negative examples are sampled from uninteracted ones.…

Information Retrieval · Computer Science 2022-03-15 Yu Wang , Xin Xin , Zaiqiao Meng , Xiangnan He , Joemon Jose , Fuli Feng

The ubiquity of implicit feedback makes them the default choice to build modern recommender systems. Generally speaking, observed interactions are considered as positive samples, while unobserved interactions are considered as negative…

Information Retrieval · Computer Science 2022-05-18 Yunjun Gao , Yuntao Du , Yujia Hu , Lu Chen , Xinjun Zhu , Ziquan Fang , Baihua Zheng

Modern personalized recommendation services often rely on user feedback, either explicit or implicit, to improve the quality of services. Explicit feedback refers to behaviors like ratings, while implicit feedback refers to behaviors like…

Information Retrieval · Computer Science 2023-11-22 Guanyu Lin , Chen Gao , Yu Zheng , Yinfeng Li , Jianxin Chang , Yanan Niu , Yang Song , Kun Gai , Zhiheng Li , Depeng Jin , Yong Li

In real-world applications, users express different behaviors when they interact with different items, including implicit click/like interactions, and explicit comments/reviews interactions. Nevertheless, almost all recommender works are…

Information Retrieval · Computer Science 2024-07-30 Wentao Xu , Qianqian Xie , Shuo Yang , Jiangxia Cao , Shuchao Pang

Traditional recommendation models trained on observational interaction data have generated large impacts in a wide range of applications, it faces bias problems that cover users' true intent and thus deteriorate the recommendation…

Information Retrieval · Computer Science 2022-02-08 Xiangmeng Wang , Qian Li , Dianer Yu , Peng Cui , Zhichao Wang , Guandong Xu

The acquisition of explicit user feedback (e.g., ratings) in real-world recommender systems is often hindered by the need for active user involvement. To mitigate this issue, implicit feedback (e.g., clicks) generated during user browsing…

Information Retrieval · Computer Science 2023-06-02 Zongwei Wang , Min Gao , Wentao Li , Junliang Yu , Linxin Guo , Hongzhi Yin

Due to the difficulty of acquiring large-scale explicit user feedback, implicit feedback (e.g., clicks or other interactions) is widely applied as an alternative source of data, where user-item interactions can be modeled as a bipartite…

Information Retrieval · Computer Science 2024-11-15 Xinyu He , Jose Sepulveda , Mostafa Rahmani , Alyssa Woo , Fei Wang , Hanghang Tong

Sequential recommendation seeks to model the evolution of user interests by capturing temporal user intent and item-level transition patterns. Transformer-based recommenders demonstrate a strong capacity for learning long-range and…

Information Retrieval · Computer Science 2026-04-28 Sijia Li , Min Gao , Zongwei Wang , Zhiyi Liu , Xin Xia , Yi Zhang
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