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99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
import tensorflow as tf
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from keras import layers
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from keras.models import save_model
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import pandas as pd
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import numpy as np
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import matplotlib.pyplot as plt
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import mlflow
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import mlflow.keras
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from urllib.parse import urlparse
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import sys
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def train():
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# Definicja wartości parametrów treningu
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epochs = int(sys.argv[1]) if len(sys.argv) > 1 else 100
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units = int(sys.argv[2]) if len(sys.argv) > 2 else 1
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learning_rate = float(sys.argv[3]) if len(sys.argv) > 3 else 0.1
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# Konfiguracja serwera i nazwy eksperymentu MLflow
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# mlflow.set_tracking_uri("http://172.17.0.1:5000")
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mlflow.set_experiment('s449288')
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# Podpięcie treningu do MLflow
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with mlflow.start_run() as run:
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print('MLflow run experiment_id: {0}'.format(run.info.experiment_id))
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print('MLflow run artifact_uri: {0}'.format(run.info.artifact_uri))
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# Wczytanie danych
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data_train = pd.read_csv('lego_sets_clean_train.csv')
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data_test = pd.read_csv('lego_sets_clean_test.csv')
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# Wydzielenie zbiorów dla predykcji ceny zestawu na podstawie liczby klocków, którą zawiera
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train_piece_counts = np.array(data_train['piece_count'])
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train_prices = np.array(data_train['list_price'])
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test_piece_counts = np.array(data_test['piece_count'])
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test_prices = np.array(data_test['list_price'])
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# Normalizacja
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normalizer = layers.Normalization(input_shape=[1, ], axis=None)
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normalizer.adapt(train_piece_counts)
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# Inicjalizacja
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model = tf.keras.Sequential([
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normalizer,
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layers.Dense(units=units)
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])
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# Kompilacja
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model.compile(
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optimizer=tf.optimizers.Adam(learning_rate=learning_rate),
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loss='mean_absolute_error'
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)
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# Trening
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history = model.fit(
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train_piece_counts,
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train_prices,
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epochs=epochs,
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verbose=0,
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validation_split=0.2
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)
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# Wykonanie predykcji na danych ze zbioru testującego
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y_pred = model.predict(test_piece_counts)
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# Zapis predykcji do pliku
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results = pd.DataFrame(
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{'test_set_piece_count': test_piece_counts.tolist(),
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'predicted_price': [round(a[0], 2) for a in y_pred.tolist()]})
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results.to_csv('lego_reg_results.csv', index=False, header=True)
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# Zapis modelu do pliku
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model.save('lego_reg_model')
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# Ewaluacja MAE na potrzeby MLflow (kopia z evaluate.py)
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mae = model.evaluate(
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test_piece_counts,
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test_prices, verbose=0)
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# Zapis parametrów i metryk dla MLflow
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mlflow.log_param('epochs', epochs)
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mlflow.log_param('units', units)
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mlflow.log_param('learning_rate', learning_rate)
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mlflow.log_metric("mae", mae)
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# Logowanie i zapis modelu dla Mlflow
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signature = mlflow.models.signature.infer_signature(train_piece_counts, model.predict(train_piece_counts))
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tracking_url_type_store = urlparse(mlflow.get_tracking_uri()).scheme
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if tracking_url_type_store != 'file':
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mlflow.keras.log_model(model, 'lego-model', registered_model_name='TFLegoModel',
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signature=signature)
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else:
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mlflow.keras.log_model(model, 'model', signature=signature, input_example=np.array(500))
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if __name__ == '__main__':
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train()
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