Use ravel instead of flatten
Use ravel instead of flatten

hidenori-t/chainer,cemoody/chainer,chainer/chainer,okuta/chainer,niboshi/chainer,hvy/chainer,niboshi/chainer,niboshi/chainer,ikasumi/chainer,wkentaro/chainer,minhpqn/chainer,kiyukuta/chainer,keisuke-umezawa/chainer,muupan/chainer,yanweifu/chainer,Kaisuke5/chainer,hvy/chainer,niboshi/chainer,ktnyt/chainer,kashif/chainer,t-abe/chainer,sinhrks/chainer,pfnet/chainer,truongdq/chainer,wkentaro/chainer,jnishi/chainer,ktnyt/chainer,benob/chainer,okuta/chainer,kikusu/chainer,chainer/chainer,hvy/chainer,ysekky/chainer,AlpacaDB/chainer,tscohen/chainer,truongdq/chainer,ktnyt/chainer,cupy/cupy,keisuke-umezawa/chainer,rezoo/chainer,delta2323/chainer,umitanuki/chainer,okuta/chainer,AlpacaDB/chainer,t-abe/chainer,ktnyt/chainer,1986ks/chainer,chainer/chainer,laysakura/chainer,jnishi/chainer,ronekko/chainer,hvy/chainer,muupan/chainer,sou81821/chainer,keisuke-umezawa/chainer,wkentaro/chainer,masia02/chainer,okuta/chainer,anaruse/chainer,benob/chainer,cupy/cupy,keisuke-umezawa/chainer,tkerola/chainer,chainer/chainer,jnishi/chainer,wkentaro/chainer,ytoyama/yans_chainer_hackathon,kikusu/chainer,sinhrks/chainer,cupy/cupy,aonotas/chainer,jnishi/chainer,cupy/cupy,tigerneil/chainer