示例#1
0
文件: XOR.py 项目: PkBadger/firstNN
    'target': [0]
}]


def drawPrediction():
    resolution = 10
    cols = rows = int(side / resolution)

    for i in range(cols):
        for j in range(rows):
            x1 = i / cols
            x2 = j / rows
            color = int(brain.predict([x1, x2])[0][0] * 255)
            rect = pygame.draw.rect(
                screen, (color, color, color),
                (i * resolution, j * resolution, resolution, resolution))
    pygame.display.flip()


while running:
    event = pygame.event.poll()
    if event.type == pygame.QUIT:
        brain.saveState('XOR.state.json')
        running = 0
    if event.type == pygame.MOUSEBUTTONDOWN and event.button == 1:
        brain = NeuralNetwork(2, 4, 1)
    for _ in range(1000):
        data = np.random.choice(training_data)
        brain.train(data['input'], data['target'])
    drawPrediction()
示例#2
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import pandas
import numpy
from NN import NeuralNetwork

numbers = pandas.read_csv('processed_train.csv')
#print(numbers.iloc[:,1:])

brain = NeuralNetwork(784, 100, 10, 0.3)

total = numbers.shape[0]

for index, row in numbers.iterrows():
    target = row[1]
    inputs = row[2:]
    targets = numpy.zeros(10) + 0.01
    targets[int(target)] = 0.99

    brain.train(inputs, targets)
    print(str(index) + '/' + str(total))

brain.saveState('digit-recognizer.state.json')