Created by: tz28

论文attention中的out product是外积的意思吗？ 论文中attention是将 [hist, target_expand, out product（hist，target_expand)]做了个拼接。而paddle中代码实现却是concat = fluid.layers.concat( [hist, target_expand, hist - target_expand, hist * target_expand], axis=2) 请问out product（hist，target_expand）和hist - target_expand, hist * target_expand之间存在什么关联？谢谢