Python 3 Text Processing with NLTK 3 Cookbook by Unknown

Author:Unknown
Language: eng
Format: epub
Publisher: Packt Publishing

See also

The previous recipe, Training a tagger-based chunker, introduced the idea of using a part-of-speech tagger for training a chunker. The Classifier-based tagging recipe in Chapter 4, Part-of-speech Tagging, describes ClassifierBasedPOSTagger, which is a subclass of ClassifierBasedTagger. And in Chapter 7, Text Classification, we'll cover classification in detail.

Extracting named entities

Named entity recognition is a specific kind of chunk extraction that uses entity tags instead of, or in addition to, chunk tags. Common entity tags include PERSON, ORGANIZATION, and LOCATION. Part-of-speech tagged sentences are parsed into chunk trees as with normal chunking, but the labels of the trees can be entity tags instead of chunk phrase tags.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.