ium_434765/neural_network.py
Karolina Oparczyk ba9b25f4c3
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neural network predictions
2021-04-24 22:23:04 +02:00

46 lines
1.5 KiB
Python

import pandas as pd
import numpy as np
from tensorflow import keras
device = 'cpu'
data = pd.read_csv("data_train", sep=',', error_bad_lines=False).dropna()
X = data.loc[:,data.columns == "2805317"].astype(int)
y = data.loc[:,data.columns == "198909"].astype(int)
def NormalizeData(data):
return (data - np.min(data)) / (np.max(data) - np.min(data))
X = NormalizeData(X)
y = NormalizeData(y)
model = keras.Sequential([
keras.layers.Dense(512,input_dim = X.shape[1],kernel_initializer='normal', activation='relu'),
keras.layers.Dense(512,kernel_initializer='normal', activation='relu'),
keras.layers.Dense(256,kernel_initializer='normal', activation='relu'),
keras.layers.Dense(256,kernel_initializer='normal', activation='relu'),
keras.layers.Dense(128,kernel_initializer='normal', activation='relu'),
keras.layers.Dense(1,kernel_initializer='normal', activation='linear'),
])
model.compile(loss='mean_absolute_error', optimizer='adam', metrics=['mean_absolute_error'])
model.fit(X, y, epochs=30, validation_split = 0.3)
data = pd.read_csv("data_test", sep=',', error_bad_lines=False).dropna()
X_test = data.loc[:,data.columns == "2805317"].astype(int)
y_test = data.loc[:,data.columns == "198909"].astype(int)
X_test = NormalizeData(X_test)
y_test = NormalizeData(y_test)
prediction = model.predict(X_test)
f = open("predictions.txt", "w")
for (pred, test) in zip(prediction, y_test.values):
f.write("predicted: %s expected: %s\n" % (str(pred), str(test)))