Implications of Data Leakage in Machine Learning Preprocessing: A Multi-Domain Investigation
Mohamed Aly Bouke,
Saleh Ali Zaid,
Azizol Abdullah
Abstract:Data leakage during machine learning (ML) preprocessing is a critical issue where unintended external information skews the training process, resulting in artificially high-performance metrics and undermining model reliability. This study addresses the insufficient exploration of data leakage across diverse ML domains, highlighting the necessity of comprehensive investigations to ensure robust and dependable ML models in real-world applications. Significant discrepancies in model performance due to data leakag… Show more
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