mask_generator.py 文件源码

def _get_hidden_layer_connectivity(self, layerIdx):
        layer_size = self._hidden_sizes[layerIdx]
        if layerIdx == 0:
            p_vals = self._get_p(T.min(self.layers_connectivity[layerIdx]))
        else:
            p_vals = self._get_p(T.min(self.layers_connectivity_updates[layerIdx-1]))

        # #Implementations of np.choose in theano GPU
        # return T.nonzero(self._mrng.multinomial(pvals=[self._p_vals] * layer_size, dtype=theano.config.floatX))[1].astype(dtype=theano.config.floatX)
        # return T.argmax(self._mrng.multinomial(pvals=[self._p_vals] * layer_size, dtype=theano.config.floatX), axis=1)
        return T.sum(T.cumsum(self._mrng.multinomial(pvals=T.tile(p_vals[::-1][None, :], (layer_size, 1)), dtype=theano.config.floatX), axis=1), axis=1)