はてなブックマーク

import numpy as np class MatMul: def __init__(self, W): print('MatMul.init の W',type(W),'\n',W) self.params = [W] print('MatMul.init の params',type(self.params),'\n',self.params) self.grads = [np.zeros_like(W)] print('MatMul.init の grads',type(self.grads),'\n',self.grads) self.x = None def forward(self, x): W, = self.params print('MatMul.forward の W',type(W),'\n',W) out = np.dot(x, W) self.x = x r