🏠 홈
벤치마크
📊 모든 벤치마크 🦖 공룡 v1 🦖 공룡 v2 ✅ 할 일 목록 앱 🎨 창의적인 자유 페이지 🎯 FSACB - 궁극의 쇼케이스 🌍 번역 벤치마크
모델
🏆 톱 10 모델 🆓 무료 모델 📋 모든 모델 ⚙️ 킬로 코드 모드
리소스
💬 프롬프트 라이브러리 📖 AI 용어 사전 🔗 유용한 링크
Advanced

Imbalanced Dataset Strategy

#data-science #machine-learning #imbalanced-data #python

Formulate a strategy for handling a highly imbalanced classification dataset.

Act as a Senior Data Scientist. I am working on a fraud detection dataset where the positive class (fraud) represents only 0.1% of the data. I cannot collect more data. Propose a comprehensive modeling pipeline that includes: 1) Data resampling techniques (SMOTE, ADASYN, etc.) and their trade-offs, 2) Algorithm selection focusing on anomaly detection vs classification, 3) Cost-sensitive learning approaches, and 4) Evaluation metrics that are more informative than Accuracy or ROC-AUC (such as Precision-Recall AUC). Provide Python code snippets using Scikit-Learn and Imbalanced-Learn to demonstrate the pipeline.