Do data conversion only when it is really necessary
Do data conversion only when it is really necessary

wkentaro/chainer,chainer/chainer,jnishi/chainer,jnishi/chainer,ktnyt/chainer,hvy/chainer,chainer/chainer,hvy/chainer,okuta/chainer,chainer/chainer,tkerola/chainer,jnishi/chainer,ronekko/chainer,ktnyt/chainer,keisuke-umezawa/chainer,ktnyt/chainer,niboshi/chainer,wkentaro/chainer,keisuke-umezawa/chainer,keisuke-umezawa/chainer,aonotas/chainer,wkentaro/chainer,hvy/chainer,anaruse/chainer,okuta/chainer,pfnet/chainer,okuta/chainer,niboshi/chainer,wkentaro/chainer,niboshi/chainer,chainer/chainer,niboshi/chainer,jnishi/chainer,okuta/chainer,ktnyt/chainer,hvy/chainer,keisuke-umezawa/chainer,rezoo/chainer