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Statistics.md

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Statistic

1. Adversarial Validation

1.1 KS test

# https://www.kaggle.com/code/carlmcbrideellis/what-is-adversarial-validation/notebook

from scipy import stats
features_list = X_test.columns.values.tolist()
for feature in features_list:
    statistic, pvalue = stats.kstest(X_train[feature], X_test[feature])
    print("p-value %.2f" %pvalue, "for the feature",feature)

2. Loss function

2.1 Lightgbm focal loss

# https://maxhalford.github.io/blog/lightgbm-focal-loss/

3. Compare performance

3.1 Metric Processing Time

https://www.kaggle.com/code/rohanrao/amex-competition-metric-implementations