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X = [ones(m, 1) X]; temp = X * Theta1‘; t = size(temp, 1); temp = [ones(t, 1) temp]; h = temp * Theta2‘; [max_num, p] = max(h, [], 2);
Without Sigmoid function, Training Set Accuracy: 69.620000
1 X = [ones(m, 1) X]; 2 temp = X * Theta1‘; 3 temp = sigmoid(temp); 4 5 t = size(temp, 1); 6 temp = [ones(t, 1) temp]; 7 8 h = temp * Theta2‘; 9 h = sigmoid(h); 10 [max_num, p] = max(h, [], 2);
With Sigmoid function, the Training Set Accuracy: 97.520000
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原文地址：http://www.cnblogs.com/devai/p/4850548.html
