Multiword Expressions in Syntactic and Semantic Parsing Environments

句法和语义解析环境中的多词表达式

• 批准号: 467699802
• 负责人: Professorin Dr. Laura Kallmeyer
• 金额: --
• 依托单位: Abteilung für Computerlinguistik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/467699802?language=en
• 关键词: Multiword; Expressions; Syntactic; Semantic; Parsing

Multiword expressions (MWEs) are combinations of multiple lexemes whose overall properties are not readily predictable by those of their components, which makes them a challenge for natural language processing (NLP). Verbal MWEs (VMWEs) stand out as a particularly difficult and interesting subclass because of properties like discontinuity, overlap, varying word order, idiomaticity, and syntactic or semantic ambiguity. The project contributes to treating VMWEs in NLP settings by a) improving MWE identification approaches, b) integrating MWE identification with syntactic parsing, and c) extending the approach to an MWE-aware semantic parser. Concerning b) and c), the project will use architectures based on Tree Adjoining Grammars, Combinatory Categorial Grammar and Discourse Representation Theory, in combination with an extension of the Parallel Meaning Bank (PMB) with semantic annotations of MWEs.

多词表达式（MWE）是多个词位的组合，其整体属性不容易由其组成部分预测，这使得它们成为自然语言处理（NLP）的一个挑战。动词性MWE（VMWEs）是一个特别困难和有趣的子类，因为它具有不连续性、重叠性、不同的词序、习语性和句法或语义模糊性等特性。该项目有助于处理VMWE在自然语言处理设置，a）改进MWE识别方法，B）集成MWE识别与句法分析，和c）扩展的方法MWE感知的语义分析器。关于B）和c），该项目将使用基于树邻接语法、组合范畴语法和话语表示理论的架构，并结合并行意义库（PMB）的扩展和MWE的语义注释。