【python】NLTK-01-入门

下载资料

import nltknltk.download()

下载 NLTK 图书集，使用nltk.download()浏览可用的软件包选择好路径，可以把资料全部下载下来。如果没有下载下来，你还可以直接到http://nltk.googlecode.com/svn/trunk/nltk_data/index.xml 去下载数据包，只要将数据包复制到你的Download Directory目录下即可。

使用资料

# 从 NLTK 的 book模块加载所有的东西,我这边用的虚拟环境，所以需要把nltk_data放到虚拟环境下面跟 Scripts同级目录。from nltk.book import *# 任何时候我们想要找到这些文本，只需要在 Python 提示符后输入它们的名字。print(text1)# 输出 <Text: Moby Dick by Herman Melville 1851>print(text2)# 输出 <Text: Sense and Sensibility by Jane Austen 1811># 示例1 搜索文本 从这一大串字符串中找出包含monstrous这个单词的语句text1.concordance('monstrous')# 输出 '''Displaying 11 of 11 matches:ong the former , one was of a most monstrous size . ... This came towards us , ON OF THE PSALMS . " Touching that monstrous bulk of the whale or ork we have rll over with a heathenish array of monstrous clubs and spears . Some were thickd as you gazed , and wondered what monstrous cannibal and savage could ever havthat has survived the flood ; most monstrous and most mountainous ! That Himmalthey might scout at Moby Dick as a monstrous fable , or still worse and more deth of Radney .'" CHAPTER 55 Of the Monstrous Pictures of Whales . I shall ere ling Scenes . In connexion with the monstrous pictures of whales , I am stronglyere to enter upon those still more monstrous stories of them which are to be foght have been rummaged out of this monstrous cabinet there is no telling . But of Whale - Bones ; for Whales of a monstrous size are oftentimes cast up dead u'''#示例2  搜索文本 从这一大串字符串中找出包含affection这个单词的语句text2.concordance("affection")'''Displaying 25 of 79 matches:, however , and , as a mark of his affection for the three girls , he left themt . It was very well known that no affection was ever supposed to exist betweenderation of politeness or maternal affection on the side of the former , the twd the suspicion -- the hope of his affection for me may warrant , without impruhich forbade the indulgence of his affection . She knew that his mother neitherrd she gave one with still greater affection . Though her late conversation wit can never hope to feel or inspire affection again , and if her home be uncomfom of the sense , elegance , mutual affection , and domestic comfort of the fami, and which recommended him to her affection beyond every thing else . His sociween the parties might forward the affection of Mr . Willoughby , an equally st the most pointed assurance of her affection . Elinor could not be surprised athe natural consequence of a strong affection in a young and ardent mind . This  opinion . But by an appeal to her affection for her mother , by representing t every alteration of a place which affection had established as perfect with hie will always have one claim of my affection , which no other can possibly sharf the evening declared at once his affection and happiness . " Shall we see youause he took leave of us with less affection than his usual behaviour has shewnness ." " I want no proof of their affection ," said Elinor ; " but of their enonths , without telling her of his affection ;-- that they should part without ould be the natural result of your affection for her . She used to be all unresdistinguished Elinor by no mark of affection . Marianne saw and listened with ith no inclination for expense , no affection for strangers , no profession , antill distinguished her by the same affection which once she had felt no doubt oal of her confidence in Edward ' s affection , to the remembrance of every mark was made ? Had he never owned his affection to yourself ?" " Oh , no ; but if '''

在词语索引后的结果中，我们看到词的上下文，还有哪些词出现在相似的上下文中呢，可以使用similar函数，用来识别文章中和搜索词相似的词语，可以用在搜索引擎中的相关度识别功能中。

# similar 用法text1.similar('monstrous')'''true contemptible christian abundant few part mean careful puzzledmystifying passing curious loving wise doleful gamesome singulardelightfully perilous fearless'''

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原创团队

【总监】十二春秋之，[e-mail]；

【Master】zelo，[e-mail]；【运营】运维艄公，[e-mail]；

【产品设计】流浪猫，[e-mail]；【体验设计】兜兜，[e-mail]；

【iOS】淘码小工，[e-mail]；iMcG33K，[e-mail]；

【Android】人猿居士，[e-mail]；思路的顿悟，[e-mail]；

【java】首席工程师MR_W，[e-mail]；【测试】土镜问道，[e-mail]；

【数据】fox009521，[e-mail]；【安全】保密，你懂的。