Time Expression and Named Entity Recognition

Name: Time Expression and Named Entity Recognition
Brand: Springer Nature Switzerland AG
SKU: 9783030789602
Price: 771.57 RON
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Autor: Xiaoshi Zhong

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Editura: Springer Nature Switzerland AG

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This book presents a synthetic analysis about the characteristics of time expressions and named enti...

Informații despre carte

Autor

Xiaoshi Zhong

Limbă

engleză

Legare

Carte - Copertă tare

Publicat

2021

Pagini

116

EAN

9783030789602

ISBN

3030789608

Enbook ID

37036267

Editura

Springer Nature Switzerland AG

Greutate

348

Dimensiuni

160 x 241 x 12

Descriere completă

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.

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