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As information filtering services, recommender systems have extremely enriched our daily life by providing personalized suggestions and facilitating people in decision-making, which makes them vital and indispensable to human society in the…

Information Retrieval · Computer Science 2023-06-02 Di Jin , Luzhi Wang , He Zhang , Yizhen Zheng , Weiping Ding , Feng Xia , Shirui Pan

In industry, feature selection is a standard but necessary step to search for an optimal set of informative feature fields for efficient and effective training of deep Click-Through Rate (CTR) models. Most previous works measure the…

Information Retrieval · Computer Science 2022-09-07 Yi Guo , Zhaocheng Liu , Jianchao Tan , Chao Liao , Sen Yang , Lei Yuan , Dongying Kong , Zhi Chen , Ji Liu

This work takes a critical stance on previous studies concerning fairness evaluation in Large Language Model (LLM)-based recommender systems, which have primarily assessed consumer fairness by comparing recommendation lists generated with…

Information Retrieval · Computer Science 2025-02-24 Yashar Deldjoo , Tommaso di Noia

Recommender systems leverage extensive user interaction data to model preferences; however, directly modeling these data may introduce biases that disproportionately favor popular items. In this paper, we demonstrate that popularity bias…

Information Retrieval · Computer Science 2025-04-21 Jiahao Liu , Dongsheng Li , Hansu Gu , Peng Zhang , Tun Lu , Li Shang , Ning Gu

Fairness is a critical system-level objective in recommender systems that has been the subject of extensive recent research. It is especially important in multi-sided recommendation platforms where it may be crucial to optimize utilities…

Information Retrieval · Computer Science 2021-11-11 Masoud Mansoury

We propose a filtering feature selection framework that considers subsets of features as paths in a graph, where a node is a feature and an edge indicates pairwise (customizable) relations among features, dealing with relevance and…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Giorgio Roffo , Simone Melzi , Umberto Castellani , Alessandro Vinciarelli , Marco Cristani

Feature selection is important step in machine learning since it has shown to improve prediction accuracy while depressing the curse of dimensionality of high dimensional data. The neural networks have experienced tremendous success in…

Machine Learning · Computer Science 2021-07-13 Peter Bugata , Peter Drotar

Mitigating bias in automated decision-making systems, particularly in deep learning models, is a critical challenge due to nuanced definitions of fairness, dataset-specific biases, and the inherent trade-off between fairness and accuracy.…

Machine Learning · Computer Science 2025-10-22 Charmaine Barker , Daniel Bethell , Dimitar Kazakov

Ensuring fairness in machine learning is a critical and challenging task, as biased data representations often lead to unfair predictions. To address this, we propose Deep Fair Learning, a framework that integrates nonlinear sufficient…

Machine Learning · Statistics 2025-04-10 Enze Shi , Linglong Kong , Bei Jiang

Recommendation systems are now an integral part of our daily lives. We rely on them for tasks such as discovering new movies, finding friends on social media, and connecting job seekers with relevant opportunities. Given their vital role,…

Artificial Intelligence · Computer Science 2025-02-26 Tahsin Alamgir Kheya , Mohamed Reda Bouadjenek , Sunil Aryal

Feature selection is a crucial step in building machine learning models. This process is often achieved with accuracy as an objective, and can be cumbersome and computationally expensive for large-scale datasets. Several additional model…

Machine Learning · Computer Science 2024-03-15 Shubham Sharma , Sanghamitra Dutta , Emanuele Albini , Freddy Lecue , Daniele Magazzeni , Manuela Veloso

Recommender systems can strongly influence which information we see online, e.g., on social media, and thus impact our beliefs, decisions, and actions. At the same time, these systems can create substantial business value for different…

Information Retrieval · Computer Science 2023-05-10 Yashar Deldjoo , Dietmar Jannach , Alejandro Bellogin , Alessandro Difonzo , Dario Zanzonelli

Deep neural networks (DNNs) are being utilized in various aspects of our daily lives, including high-stakes decision-making applications that impact individuals. However, these systems reflect and amplify bias from the data used during…

Machine Learning · Computer Science 2025-08-12 Moses Openja , Paolo Arcaini , Foutse Khomh , Fuyuki Ishikawa

Deep learning-based recommender systems (DRSs) are increasingly and widely deployed in the industry, which brings significant convenience to people's daily life in different ways. However, recommender systems are also shown to suffer from…

Artificial Intelligence · Computer Science 2023-04-17 Huizhong Guo , Jinfeng Li , Jingyi Wang , Xiangyu Liu , Dongxia Wang , Zehong Hu , Rong Zhang , Hui Xue

Understanding and removing bias from the decisions made by machine learning models is essential to avoid discrimination against unprivileged groups. Despite recent progress in algorithmic fairness, there is still no clear answer as to which…

Deep learning models often learn to make predictions that rely on sensitive social attributes like gender and race, which poses significant fairness risks, especially in societal applications, e.g., hiring, banking, and criminal justice.…

Machine Learning · Computer Science 2022-11-03 Yi Zhang , Jitao Sang , Junyang Wang

Machine learning models have demonstrated promising performance in many areas. However, the concerns that they can be biased against specific demographic groups hinder their adoption in high-stake applications. Thus, it is essential to…

Machine Learning · Computer Science 2023-05-31 Canyu Chen , Yueqing Liang , Xiongxiao Xu , Shangyu Xie , Ashish Kundu , Ali Payani , Yuan Hong , Kai Shu

The growing capability and accessibility of machine learning has led to its application to many real-world domains and data about people. Despite the benefits algorithmic systems may bring, models can reflect, inject, or exacerbate implicit…

Machine Learning · Computer Science 2021-10-28 Ángel Alexander Cabrera , Will Epperson , Fred Hohman , Minsuk Kahng , Jamie Morgenstern , Duen Horng Chau

Concerns regarding fairness and bias have been raised in recent years due to the growing use of machine learning models in crucial decision-making processes, especially when it comes to delicate characteristics like gender. In order to…

Machine Learning · Computer Science 2024-08-30 Saish Shinde

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