title: Boolean retrieval model in python
body: <p>I´m trying to create a query-answer system using boolean model in python.</p>
  
  <p>I tried to use nltk but it seems to be that it doesn´t have functions for the boolean model</p>
  
  <p>I have 3 documents, and I'm  expecting to see which ones are more similar w/ a numeric value.</p>
  
  <p>For example doc1 2.987, doc2 0.876 and doc3 2.156 therefore doc1 and doc2 are similar</p>
  
  <p>What I did:</p>
  
  <ul>
  <li>tokenized document</li>
  <li>removed duplicated words </li>
  <li>removed stopwords</li>
  </ul>
  
  <p>What I have now is a list of unique words for each document (basically nouns, verbs, adverbs and adjectives)</p>
  
  <p>Now what's the next step?</p>