ium_430705/lab08_mfl.py

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2021-05-12 09:37:42 +02:00
import sys
import mlflow
import pandas as pd
from sklearn.metrics import mean_squared_error
from sklearn.model_selection import train_test_split
from tensorflow.keras.callbacks import EarlyStopping
from tensorflow.keras.layers import Dense, Dropout
from tensorflow.keras.models import Sequential
def prepare_model(train_size_param, test_size_param, epochs, batch_size):
2021-05-12 09:37:42 +02:00
movies_data = pd.read_csv("train.csv", error_bad_lines=False)
movies_data.drop(movies_data.columns[0], axis=1, inplace=True)
movies_data.dropna(inplace=True)
X = movies_data.drop("rating", axis=1)
Y = movies_data["rating"]
X_train, X_test, Y_train, Y_test = train_test_split(
X, Y, test_size=test_size_param, random_state=42
)
test_df = pd.read_csv("test.csv")
test_df.drop(test_df.columns[0], axis=1, inplace=True)
x_test = test_df.drop("rating", axis=1)
y_test = test_df["rating"]
# Set up model
model = Sequential()
model.add(Dense(8, activation="relu"))
model.add(Dropout(0.5))
model.add(Dense(3, activation="relu"))
model.add(Dropout(0.5))
model.add(Dense(1))
model.compile(optimizer="adam", loss="mse")
early_stop = EarlyStopping(monitor="val_loss", mode="min", verbose=1, patience=10)
model.fit(
x=X_train.values,
y=Y_train.values,
validation_data=(X_test, Y_test.values),
batch_size=batch_size,
epochs=epochs,
callbacks=[early_stop],
)
y_pred = model.predict(x_test.values)
rmse = mean_squared_error(y_test, y_pred)
model.save("model_movies")
return model, rmse
train_size_param = float(sys.argv[1]) if len(sys.argv) > 1 else 0.8
test_size_param = float(sys.argv[2]) if len(sys.argv) > 1 else 0.2
epochs = int(sys.argv[3]) if len(sys.argv) > 1 else 400
batch_size = int(sys.argv[4]) if len(sys.argv) > 1 else 128
with mlflow.start_run():
mlflow.log_param("train size", train_size_param)
mlflow.log_param("test size", test_size_param)
mlflow.log_param("epochs", epochs)
mlflow.log_param("batch size", batch_size)
model, rmse = prepare_model(
train_size_param=train_size_param,
test_size_param=test_size_param,
epochs=epochs,
batch_size=batch_size,
)
mlflow.log_metric("RMSE", rmse)
mlflow.keras.log_model(model, "movies_imdb")