Warn possible NaN in FP16 mode in sentiment example
Warn possible NaN in FP16 mode in sentiment example

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