Python NLTK(Natural Language Toolkit)

Python NLTK(Natural Language Toolkit)

PythonPython ライブラリ自然言語処理

link

この本に従って試してみる

• NLTK
• NLTK How to

インストール

• PIPによるインストール

# pip install nltk

NLTK Bookコレクションのダウンロード

>>> import nltk
>>> nltk.download() 
NLTK Downloader
---------------------------------------------------------------------------
    d) Download   l) List    u) Update   c) Config   h) Help   q) Quit
---------------------------------------------------------------------------

Download の選択後、list を選択

Downloader> d

Download which package (l=list; x=cancel)?

Enter キーで最後まで送るとCollectionsパッケージが確認できる

Collections:
  [ ] all-corpora......... All the corpora
  [ ] all................. All packages
  [ ] book................ Everything used in the NLTK Book

book モジュールのダウンロード

Downloader> d book
    Downloading collection 'book'
       | 
       | Downloading package 'brown' to /home/piroto/nltk_data...

book モジュールをロード

>>> from nltk.book import *
*** Introductory Examples for the NLTK Book ***
Loading text1, ..., text9 and sent1, ..., sent9
Type the name of the text or sentence to view it.
Type: 'texts()' or 'sents()' to list the materials.
text1: Moby Dick by Herman Melville 1851
text2: Sense and Sensibility by Jane Austen 1811
text3: The Book of Genesis
text4: Inaugural Address Corpus
text5: Chat Corpus
text6: Monty Python and the Holy Grail
text7: Wall Street Journal
text8: Personals Corpus
text9: The Man Who Was Thursday by G . K . Chesterton 1908

<blockquote>実際の使用例は、[自然言語処理]</blockquote>