https://eiken59.github.io/projects/Recent content in Projects on EikenHugo -- 0.147.2enMon, 22 Dec 2025 00:00:00 +0000https://eiken59.github.io/projects/gamblers-ruin/Mon, 22 Dec 2025 00:00:00 +0000https://eiken59.github.io/projects/gamblers-ruin/An expository study of hitting probabilities for one-dimensional random walks — from the simple symmetric walk to bounded and finite-variance steps — using difference equations and martingale methods. Advised by Prof. Yuki Chino.https://eiken59.github.io/projects/credit-default-ml/Sat, 19 Jul 2025 00:00:00 +0000https://eiken59.github.io/projects/credit-default-ml/A supervised-learning study on an imbalanced 30,000-client dataset (~22% default), comparing five classifiers with a focus on minority-class performance rather than misleading accuracy. Course project at École polytechnique.