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savi-cyber
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ae1cc18
Delete train.py
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train.py
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import joblib
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from sklearn.datasets import fetch_openml
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from sklearn.preprocessing import StandardScaler, OneHotEncoder
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from sklearn.compose import make_column_transformer
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from sklearn.pipeline import make_pipeline
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from sklearn.model_selection import train_test_split, RandomizedSearchCV
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from sklearn.linear_model import LogisticRegression
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from sklearn.metrics import accuracy_score, classification_report
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dataset = fetch_openml(data_id=42890, as_frame=True, parser="auto")
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data_df = dataset.data
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target = 'Machine failure'
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numeric_features = [
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'Air temperature [K]',
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'Process temperature [K]',
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'Rotational speed [rpm]',
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'Torque [Nm]',
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'Tool wear [min]'
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]
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categorical_features = ['Type']
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print("Creating data subsets")
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X = data_df[numeric_features + categorical_features]
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y = data_df[target]
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Xtrain, Xtest, ytrain, ytest = train_test_split(
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X, y,
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test_size=0.2,
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random_state=42
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)
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preprocessor = make_column_transformer(
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(StandardScaler(), numeric_features),
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(OneHotEncoder(handle_unknown='ignore'), categorical_features)
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)
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model_logistic_regression = LogisticRegression(n_jobs=-1)
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print("Estimating Best Model Pipeline")
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model_pipeline = make_pipeline(
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preprocessor,
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model_logistic_regression
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)
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param_distribution = {
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"logisticregression__C": [0.001, 0.01, 0.1, 0.5, 1, 5, 10]
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}
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rand_search_cv = RandomizedSearchCV(
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model_pipeline,
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param_distribution,
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n_iter=3,
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cv=3,
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random_state=42
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)
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rand_search_cv.fit(Xtrain, ytrain)
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print("Logging Metrics")
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print(f"Accuracy: {rand_search_cv.best_score_}")
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print("Serializing Model")
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saved_model_path = "model.joblib"
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joblib.dump(rand_search_cv.best_estimator_, saved_model_path)
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