Use broadcast in equal
Use broadcast in equal

jnishi/chainer,jnishi/chainer,ktnyt/chainer,wkentaro/chainer,niboshi/chainer,ktnyt/chainer,okuta/chainer,hvy/chainer,pfnet/chainer,wkentaro/chainer,chainer/chainer,keisuke-umezawa/chainer,chainer/chainer,niboshi/chainer,okuta/chainer,wkentaro/chainer,tkerola/chainer,hvy/chainer,hvy/chainer,jnishi/chainer,keisuke-umezawa/chainer,hvy/chainer,chainer/chainer,ktnyt/chainer,niboshi/chainer,okuta/chainer,jnishi/chainer,keisuke-umezawa/chainer,okuta/chainer,chainer/chainer,ktnyt/chainer,wkentaro/chainer,keisuke-umezawa/chainer,niboshi/chainer