Convert positional arguments into keyword arguments
Convert positional arguments into keyword arguments

niboshi/chainer,hvy/chainer,chainer/chainer,wkentaro/chainer,niboshi/chainer,chainer/chainer,hvy/chainer,niboshi/chainer,pfnet/chainer,wkentaro/chainer,wkentaro/chainer,niboshi/chainer,chainer/chainer,hvy/chainer,wkentaro/chainer,chainer/chainer,hvy/chainer