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viewsetting committed Dec 5, 2019
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Expand Up @@ -165,6 +165,8 @@ $$

故,这里的$s_m(i)$是$span_i$的mention得分,$s_a(i,j)$是$span_j$是$span_i$的antecedent的得分。

![截屏2019-12-05下午10.10.21](/img/2019-12-05/model.jpeg)

### score函数网络

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在这里,$\mathbf{g_i}$表示的是$span_i$的embedding,而$\mathbf{g_i} \circ \mathbf{g_j}$则是这两个$span$的逐元素积,$\phi(i,j)$则是一个特征向量,编码了作者和主题信息以及两个$span$之间的距离信息。

![截屏2019-12-05下午10.11.10](/img/2019-12-05/score.jpeg)

### span的表示

备注:2019年的SpanBERT模型对于该部分进行了改进。
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