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Knowledge-Driven Event Extraction in Russian: Corpus-Based Linguistic Resources

机译:俄语中的知识驱动事件提取:基于语料库的语言资源

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摘要

Automatic event extraction form text is an important step in knowledge acquisition and knowledge base population. Manual work in development of extraction system is indispensable either in corpus annotation or in vocabularies and pattern creation for a knowledge-based system. Recent works have been focused on adaptation of existing system (for extraction from English texts) to new domains. Event extraction in other languages was not studied due to the lack of resources and algorithms necessary for natural language processing. In this paper we define a set of linguistic resources that are necessary in development of a knowledge-based event extraction system in Russian: a vocabulary of subordination models, a vocabulary of event triggers, and a vocabulary of Frame Elements that are basic building blocks for semantic patterns. We propose a set of methods for creation of such vocabularies in Russian and other languages using Google Books NGram Corpus. The methods are evaluated in development of event extraction system for Russian.
机译:从文本中自动提取事件是获取知识和知识库的重要一步。在基于知识的系统的语料库注释或词汇表和模式创建中,提取系统开发中的手动工作必不可少。最近的工作集中于使现有系统(从英语文本中提取)适应新领域。由于缺乏自然语言处理所需的资源和算法,因此未研究其他语言的事件提取。在本文中,我们定义了一套在俄语中基于知识的事件提取系统开发中必不可少的语言资源:从属模型词汇,事件触发器词汇以及框架元素词汇,这些词汇是构成基础知识的基础语义模式。我们提出了一套使用Google图书NGram语料库以俄语和其他语言创建此类词汇的方法。在开发俄罗斯事件提取系统时对这些方法进行了评估。

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