soft_label_loss为program内的teacher var和student var添加soft label loss,出自论文 `Distilling the Knowledge in a Neural Network <https://arxiv.org/pdf/1503.02531.pdf>`_
soft_label_loss为program内的teacher var和student var添加soft label loss,出自论文 `Distilling the Knowledge in a Neural Network <https://arxiv.org/pdf/1503.02531.pdf>`_