Time Expression and Named Entity Recognition

Zhong, Xiaoshi

Time Expression and Named Entity Recognition by Xiaoshi Zhong, Erik Cambria - First edition 2021 - 1 recurso en línea (XIX, 96 páginas) 17 ilustraciones - Socio-Affective Computing 10 2509-5714 Biomedical and Life Sciences (SpringerNature-11642) Biomedical and Life Sciences (R0) (SpringerNature-43708) .

Chapter 1. Introduction -- Chapter 2. Literature Review -- Chapter 3. Data Analysis -- Chapter 4. SynTime: Token Types and Heuristic Rules -- 5. TOMN: Constituent-based Tagging Scheme -- Chapter 6. UGTO: Uncommon Words and Proper Nouns -- Chapter 7. Conclusion and Future Work.

This book presents a synthetic analysis about the characteristics of time expressions and named entities, and some proposed methods for leveraging these characteristics to recognize time expressions and named entities from unstructured text. For modeling these two kinds of entities, the authors propose a rule-based method that introduces an abstracted layer between the specific words and the rules, and two learning-based methods that define a new type of tagging scheme based on the constituents of the entities, different from conventional position-based tagging schemes that cause the problem of inconsistent tag assignment. The authors also find that the length-frequency of entities follows a family of power-law distributions. This finding opens a door, complementary to the rank-frequency of words, to understand our communicative system in terms of language use.

9783030789619

10.1007/978-3-030-78961-9 doi


Proceso en lenguaje natural (Informática)
Inteligencia artificial

QA76.9.N38 / 2021 EB