Exemple #1
0
	return (inputTrain, outputTrain, inputTest, outputTest)

def run(dataset, arhitecture, learning_rate, eval_every, stop):
	input_size = dataset["train_imgs"][0].shape
	nn = FeedForward(input_size, arhitecture)
	print(nn.to_string())

	return train_nn(nn, dataset, learning_rate, eval_every, stop)


if __name__ == "__main__":
	parser = ArgumentParser()
	parser.add_argument("--learning_rate", type = float, default = 0.001,
						help="Learning rate")
	parser.add_argument("--eval_every", type = int, default = 2000,
						help="Learning rate")
	args = parser.parse_args()
	
	#dataset = load_mnist()
	dataset = load_cifrar()

	input_size = dataset["train_imgs"][0].shape

	nn = FeedForward(input_size, [(CONV, (6, 28, 28), 5, 1), (RELU, -1), (MAX_POOLING, (6, 14, 14)), (CONV, (16, 10, 10), 5, 1), (RELU, -1), (MAX_POOLING, (16, 5, 5)), 
		(LINEARIZE, -1), (FULLY_CONNECTED, 120), (FULLY_CONNECTED, 84), (FULLY_CONNECTED, 10) ,(SOFTMAX, -1)])
	#nn = FeedForward(input_size, [(LINEARIZE, -1), (FULLY_CONNECTED, 300), (TANH, -1), (FULLY_CONNECTED, 100), (TANH, -1), (FULLY_CONNECTED, 10), (SOFTMAX, -1)])
	print(nn.to_string())

	train_nn(nn, dataset, args.learning_rate, args.eval_every, 10000)
Exemple #2
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def run(dataset, arhitecture, learning_rate, eval_every, stop):
	input_size = dataset["train_imgs"][0].shape
	nn = FeedForward(input_size, arhitecture)
	print(nn.to_string())

	return train_nn(nn, dataset, learning_rate, eval_every, stop)
Exemple #3
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        nn.update_parameters(args.learning_rate) 

        # Evaluate the network
        if cnt % args.eval_every == 0:
            test_acc, test_cm = \
                eval_nn(nn, data["test_imgs"], data["test_labels"])
            train_acc, train_cm = \
                eval_nn(nn, data["train_imgs"], data["train_labels"], 5000)
            print("Train acc: %2.6f ; Test acc: %2.6f" % (train_acc, test_acc))
            pylab.imshow(test_cm)
            pylab.draw()

            matplotlib.pyplot.pause(0.001)

if __name__ == "__main__":
    parser = ArgumentParser()
    parser.add_argument("--learning_rate", type = float, default = 0.001,
                        help="Learning rate")
    parser.add_argument("--eval_every", type = int, default = 200,
                        help="Learning rate")
    args = parser.parse_args()


    mnist = load_mnist()
    input_size = mnist["train_imgs"][0].size
    print input_size
    nn = FeedForward(input_size, [(300, logistic), (10, identity)])
    print(nn.to_string())

    train_nn(nn, mnist, args)