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arXiv 1809.09078cs.CL
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基于注意力的图信息聚合的联合多事件抽取

Jointly Multiple Events Extraction via Attention-based Graph Information Aggregation

Beijing Institute of Technology(北京理工大学);PLA Academy of Military Science(中国人民解放军军事科学院)

Xiao Liu, Zhunchen Luo, Heyan Huang

摘要:

事件抽取在自然语言处理中具有实用价值。在现实世界中,同一个句子中存在多个事件是一种常见的现象,提取多个事件比提取单个事件要困难得多。以往的工作中建模的事件之间的关联的顺序建模方法遭受了很多的低效率捕获非常长的范围内的依赖关系。在本文中,我们提出了一种新的联合多事件提取(JAPAN)框架,通过引入语法捷径弧来增强信息流和基于注意力的图卷积网络来建模图信息,从而联合提取多个事件触发器和参数。实验结果表明,我们提出的框架取得了竞争力的结果相比,国家的最先进的方法。

英文摘要:

Event extraction is of practical utility in natural language processing. In the real world, it is a common phenomenon that multiple events existing in the same sentence, where extracting them are more difficult than extracting a single event. Previous works on modeling the associations between events by sequential modeling methods suffer a lot from the low efficiency in capturing very long-range dependencies. In this paper, we propose a novel Jointly Multiple Events Extraction (JMEE) framework to jointly extract multiple event triggers and arguments by introducing syntactic shortcut arcs to enhance information flow and attention-based graph convolution networks to model graph information. The experiment results demonstrate that our proposed framework achieves competitive results compared with state-of-the-art 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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