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关于头尾实体特征和关系特征的问题 #23
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这相当于在做笛卡尔积,sta和end的区分是看你concat的先后顺序来定的 |
前辈请教一下, 上面您说的这种类似笛卡尔积的inference方法是在哪篇论文里面最开始提出来的? |
我基于您的模型做一些改动,但是在这块给卡住了 |
其实头和尾特征还是一样的东西,只不过通过维度扩展对齐了,比如说原来有1,2,3三个字符,通过扩展可以组成全部的组合11,12,13,21,22,。。。,这样就可以对三个字符组成的全部组合分类 |
@kaifangDeng 谢谢您,这块的特征方法搞明白了。
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大佬您好,请教个问题:
我看实体特征里面,实体开始结束特征为什么这么定义,能说说您的想法吗?
为什么repeat(1, length, 1, 1)就表示开始特征,repeat(length, 1, 1, 1)表示结尾特征,有什么含义在里面吗?
`st = h_ner.unsqueeze(1).repeat(1, length, 1, 1)
en = h_ner.unsqueeze(0).repeat(length, 1, 1, 1)
ner = torch.cat((st, en, h_global), dim=-1)
`
以及,关系抽取的时候,关系特征,为什么会分为r1和r2两个子特征,是表示头实体对于关系r的特征和尾实体对于关系r的特征吗?
`r1 = h_re.unsqueeze(1).repeat(1, length, 1, 1)
r2 = h_re.unsqueeze(0).repeat(length, 1, 1, 1)
re = torch.cat((r1, r2, h_global), dim=-1)
`
多谢大佬指教!
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