Normalizing Complex Functional Expressions in Japanese Predicates: Linguistically-Directed Rule-Based Paraphrasing and Its Application
Normalizing Complex Functional Expressions in Japanese Predicates: Linguistically-Directed Rule-Based Paraphrasing and Its Application
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日语谓词中复杂功能表达的规范化：语言导向的基于规则的释义及其应用
DOI：
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Satoshi Sato
中科院分区：
文献类型：
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作者：
Tomoko Izumi;Kenji Imamura;Taichi Asami;Kuniko Saito;G. Kikui;Satoshi Sato
对文本挖掘系统（如意见挖掘）日益增长的需求要求对目标语言有深入的语义理解。为了实现这一点，提取功能表达式的语义信息起着至关重要的作用，因为would like to和can ' t等功能表达式是检测客户需求和需求的关键表达式。然而，在日语中，功能表达以后缀的形式出现，两种不同类型的功能表达被合并成一个谓词：一种影响谓词的事实意义，另一种仅用于语篇目的。这引发了表面形式的增加，这阻碍了信息提取系统。在本文中，我们提出了一种新的规范化技术，它将复杂的函数表达式改写为仅保留谓词的关键含义的简化形式。我们从句法和语义学的角度出发，构建了释义规则。实验结果表明，该系统的准确率高达79.7%，同时将功能表达差异降低了66.7%。结果还显示了谓词提取性能的改进，为意译作为规范化不同语言表达式的手段的可用性提供了令人鼓舞的证据。
The growing need for text mining systems, such as opinion mining, requires a deep semantic understanding of the target language. In order to accomplish this, extracting the semantic information of functional expressions plays a crucial role, because functional expressions such as would like to and can’t are key expressions to detecting customers’ needs and wants. However, in Japanese, functional expressions appear in the form of suffixes, and two different types of functional expressions are merged into one predicate: one influences the factual meaning of the predicate while the other is merely used for discourse purposes. This triggers an increase in surface forms, which hinders information extraction systems. In this article, we present a novel normalization technique that paraphrases complex functional expressions into simplified forms that retain only the crucial meaning of the predicate. We construct paraphrasing rules based on linguistic theories in syntax and semantics. The results of experiments indicate that our system achieves a high accuracy of 79.7%, while it reduces the differences in functional expressions by up to 66.7%. The results also show an improvement in the performance of predicate extraction, providing encouraging evidence of the usability of paraphrasing as a means of normalizing different language expressions.
含义、命题和动词。
影响因子：
3.5
作者：
McKoon,Gail;Ratcliff,Roger
通讯作者：
Ratcliff,Roger