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arXiv 1302.4874cs.CLcs.LG
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一种用于关系抽取的标记图核

A Labeled Graph Kernel for Relationship Extraction

INESC-ID;IST(高等技术学院)

Gonçalo Simões, Helena Galhardas, David Matos

摘要:

在本文中,我们提出了一种基于标记图核的关系抽取(RE)方法。我们提出的内核是一个特殊化的随机游走内核,利用先前在RE文献中研究的两个属性:(i)候选实体之间的单词或在句法表示中连接它们的单词特别可能携带有关关系的信息;以及(ii)将来自不同来源的信息结合在一个内核中可以帮助RE系统做出更好的决策。我们在蛋白质-蛋白质相互作用的数据集上进行了实验,结果表明,我们的方法获得的有效性值与最先进的核方法相当。此外,我们的方法是能够优于国家的最先进的内核时,与其他内核方法相结合。

英文摘要:

In this paper, we propose an approach for Relationship Extraction (RE) based on labeled graph kernels. The kernel we propose is a particularization of a random walk kernel that exploits two properties previously studied in the RE literature: (i) the words between the candidate entities or connecting them in a syntactic representation are particularly likely to carry information regarding the relationship; and (ii) combining information from distinct sources in a kernel may help the RE system make better decisions. We performed experiments on a dataset of protein-protein interactions and the results show that our approach obtains effectiveness values that are comparable with the state-of-the art kernel methods. Moreover, our approach is able to outperform the state-of-the-art kernels when combined with other kernel methods.

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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