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Fraud_Detection

Preprocessing notebook has the details of preprocessing while in the model building notebook preprocessing steps applied without verbose.

Preprocessing:

  • Scaling amount and time features
  • Random Under-Sampling
  • Anomaly detection & Removing outliers
  • Dimensionality Reduction and Clustering

Models:

  • Logistic Regression
  • Support Vector Machine
  • Decision Tree + SMOTE
  • Decision Tree with undersampled data
  • AdaBoost
  • GradientBoosting
  • NN-Perceptron

Results:

Model Accuracy Precision Recall F1-Score
Logistic Regression 0.926 1.0 0.847 1.0
Decision Tree 0.873 0.905 0.826 0.904
Support Vector Machine 0.952 0.989 0.919 0.989
AdaBoost 0.915 0.931 0.890 0.931
GradientBoosting 0.915 0.951 0.868 0.951
NN-Perceptron 0.957 0.936 0.979 0.957

Model building without preprocessing notebook is there for you to see and don't use it.

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