Boon Giin Lee

Reinforcement Learning for Optimizing Conditional Tabular Generative Adversarial Networks Hyperparameters in Financial Fraud Detection

2024

Financial fraud datasets typically exhibit a pro-nounced class imbalance, leading to elevated false positive rates when employing machine learning classifiers. To mitigate this issue, the Conditional Tabular Generative Adversarial Network (CTGAN), an oversampling technique tailored …

Report on the 3rd Workshop on NeuroPhysiological Approaches for Interactive Information Retrieval (NeuroPhysIIR 2025) at SIGIR CHIIR 2025

2025 · ACM SIGIR Forum

The International Workshop on NeuroPhysiological Approaches for Interactive Information Retrieval (NeuroPhysIIR'25), co-located with ACM SIGIR CHIIR 2025 in Naarm/Melbourne, Australia, included 19 participants who discussed 12 statements addressing open challenges in neurophysiological interactive IR. The …