Ontology-Based Interpretation of Natural Language (Paperback)

Philipp Cimiano, Christina Unger, John McCrae

  • 出版商: Morgan & Claypool
  • 出版日期: 2014-03-01
  • 售價: $1,690
  • 貴賓價: 9.5$1,606
  • 語言: 英文
  • 頁數: 178
  • 裝訂: Paperback
  • ISBN: 1608459896
  • ISBN-13: 9781608459896
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For humans, understanding a natural language sentence or discourse is so effortless that we hardly ever think about it. For machines, however, the task of interpreting natural language, especially grasping meaning beyond the literal content, has proven extremely difficult and requires a large amount of background knowledge. This book focuses on the interpretation of natural language with respect to specific domain knowledge captured in ontologies. The main contribution is an approach that puts ontologies at the center of the interpretation process. This means that ontologies not only provide a formalization of domain knowledge necessary for interpretation but also support and guide the construction of meaning representations.

We start with an introduction to ontologies and demonstrate how linguistic information can be attached to them by means of the ontology lexicon model lemon. These lexica then serve as basis for the automatic generation of grammars, which we use to compositionally construct meaning representations that conform with the vocabulary of an underlying ontology. As a result, the level of representational granularity is not driven by language but by the semantic distinctions made in the underlying ontology and thus by distinctions that are relevant in the context of a particular domain. We highlight some of the challenges involved in the construction of ontology-based meaning representations, and show how ontologies can be exploited for ambiguity resolution and the interpretation of temporal expressions. Finally, we present a question answering system that combines all tools and techniques introduced throughout the book in a real-world application, and sketch how the presented approach can scale to larger, multi-domain scenarios in the context of the Semantic Web.

Table of Contents: List of Figures / Preface / Acknowledgments / Introduction / Ontologies / Linguistic Formalisms / Ontology Lexica / Grammar Generation / Putting Everything Together / Ontological Reasoning for Ambiguity Resolution / Temporal Interpretation / Ontology-Based Interpretation for Question Answering / Conclusion / Bibliography / Authors' Biographies




目錄:圖表清單 / 前言 / 致謝 / 引言 / 本體論 / 語言形式 / 本體論詞典 / 語法生成 / 將一切結合在一起 / 基於本體論的歧義解決 / 時間解釋 / 基於本體論的問答解釋 / 結論 / 參考文獻 / 作者簡介