Real Estate Fraud Detection Hackathon: Spot the Fakes!

Dacon Hackathon | Algorithm | Tabular | Classification | Fake List | Macro F1 Score

  • moneyIcon Prize : DASCHOOL Pro Subscription
  • 2025.01.06 ~ 2025.02.28 09:59 + Google Calendar
  • 1,065 Users Completed

 

public 51위, private 61위(0.84627) LightGBM

2025.02.06 20:31 1,483 Views language

📌 설명
• 데이터 전처리:
   - KNN Imputer로 결측치 보완
   - Label Encoding 및 One-Hot Encoding 적용
   - SMOTE를 사용하여 데이터 불균형 해결
• 모델 학습:
   - LightGBM (LGBMClassifier) 적용
   - StratifiedKFold (5-Fold) 교차검증 사용
   - F1 Score 최적화를 위한 하이퍼파라미터 튜닝
   - Early Stopping 적용 (최적 epoch 자동 선택)
• 예측 및 저장:
   - 최적 모델의 OOF F1 Score 출력
   - 테스트 데이터 예측 및 CSV 저장

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