Learning Confidence Bounds for Classification with Imbalanced Data

التفاصيل البيبلوغرافية
العنوان: Learning Confidence Bounds for Classification with Imbalanced Data
المؤلفون: Clifford, Matt, Erskine, Jonathan, Hepburn, Alexander, Santos-Rodríguez, Raúl, Garcia-Garcia, Dario
سنة النشر: 2024
المجموعة: Computer Science
مصطلحات موضوعية: Computer Science - Machine Learning
الوصف: Class imbalance poses a significant challenge in classification tasks, where traditional approaches often lead to biased models and unreliable predictions. Undersampling and oversampling techniques have been commonly employed to address this issue, yet they suffer from inherent limitations stemming from their simplistic approach such as loss of information and additional biases respectively. In this paper, we propose a novel framework that leverages learning theory and concentration inequalities to overcome the shortcomings of traditional solutions. We focus on understanding the uncertainty in a class-dependent manner, as captured by confidence bounds that we directly embed into the learning process. By incorporating class-dependent estimates, our method can effectively adapt to the varying degrees of imbalance across different classes, resulting in more robust and reliable classification outcomes. We empirically show how our framework provides a promising direction for handling imbalanced data in classification tasks, offering practitioners a valuable tool for building more accurate and trustworthy models.
Comment: Accepted at ECAI 2024 main track
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2407.11878
رقم الأكسشن: edsarx.2407.11878
قاعدة البيانات: arXiv