arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1909.01065cs.CL
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超球面中嵌入分布的命名实体建模

Modeling Named Entity Embedding Distribution into Hypersphere

Shanghai Jiao Tong University(上海交通大学);Brown University(布朗大学)

Zhuosheng Zhang, Bingjie Tang, Zuchao Li, Hai Zhao

摘要:

本文从嵌入空间的拓扑结构可视化的角度对命名实体分布进行建模,从而假设一种语言的大多数(如果不是全部的话)命名实体(NE)倾向于聚集在一起,以容纳在嵌入空间中的特定超球体中。因此,我们提出了一个新的开放的定义NE,弥补了明显的缺点,在以前的封闭NE定义与有限的NE字典。然后,我们展示了两个应用与介绍所提出的命名实体超球模型。首先,使用生成对抗神经网络学习两个嵌入空间的转换矩阵,从而方便地确定目标语言中命名实体的分布,表明仅利用嵌入空间之间的同构关系就能快速发现命名实体的潜力。第二,命名实体超球体模型直接与句子上的各种命名实体识别模型集成,以实现最先进的结果。仅假设嵌入是可用的,我们展示了一个有效的命名实体分布描述的先验知识自由的方法。

英文摘要:

This work models named entity distribution from a way of visualizing topological structure of embedding space, so that we make an assumption that most, if not all, named entities (NEs) for a language tend to aggregate together to be accommodated by a specific hypersphere in embedding space. Thus we present a novel open definition for NE which alleviates the obvious drawback in previous closed NE definition with a limited NE dictionary. Then, we show two applications with introducing the proposed named entity hypersphere model. First, using a generative adversarial neural network to learn a transformation matrix of two embedding spaces, which results in a convenient determination of named entity distribution in the target language, indicating the potential of fast named entity discovery only using isomorphic relation between embedding spaces. Second, the named entity hypersphere model is directly integrated with various named entity recognition models over sentences to achieve state-of-the-art results. Only assuming that embeddings are available, we show a prior knowledge free approach on effective named entity distribution depiction.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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