title: How would you group up articles by context? - Natural Language
body: <p><strong>I have lists of articles made of:
  title, subtitle and body.</strong></p>
  
  <p>Now I need to parse all these articles and <strong>group them up under different context categories</strong> or sub categories based on their possible <strong>keywords</strong>.</p>
  
  <blockquote>
    <p><strong>e.g.</strong> if the article is likely to be related to sports cars then the article would be associated with the car or/and vehicle context</p>
  </blockquote>
  
  <hr>
  
  <p>Now I understand that this is a vast ocean, but this is also why I have put up this question. Because the ocean of solutions might be too big for me, and I would most likely get lost and adopt some bad thought solution. </p>
  
  <p>There are probably some popular and standardized ways of doing this that I do not know, and it would be very useful if someone pointed me in the right direction. </p>
  
  <p>Help would be great. =)</p>