Optimize sigmoid_cross_entropy
Optimize sigmoid_cross_entropy

kashif/chainer,ktnyt/chainer,aonotas/chainer,ktnyt/chainer,benob/chainer,keisuke-umezawa/chainer,wkentaro/chainer,hvy/chainer,niboshi/chainer,pfnet/chainer,delta2323/chainer,chainer/chainer,anaruse/chainer,chainer/chainer,jnishi/chainer,niboshi/chainer,jnishi/chainer,keisuke-umezawa/chainer,jnishi/chainer,hvy/chainer,ktnyt/chainer,cupy/cupy,okuta/chainer,AlpacaDB/chainer,okuta/chainer,rezoo/chainer,tkerola/chainer,kikusu/chainer,chainer/chainer,hvy/chainer,wkentaro/chainer,chainer/chainer,kiyukuta/chainer,ronekko/chainer,kikusu/chainer,wkentaro/chainer,AlpacaDB/chainer,cupy/cupy,jnishi/chainer,hvy/chainer,cemoody/chainer,okuta/chainer,okuta/chainer,cupy/cupy,ysekky/chainer,keisuke-umezawa/chainer,wkentaro/chainer,niboshi/chainer,keisuke-umezawa/chainer,cupy/cupy,niboshi/chainer,ktnyt/chainer,benob/chainer