title: How does the Amazon Recommendation feature work?
body: <p>What technology goes in behind the screens of Amazon recommendation technology? I believe that Amazon recommendation is currently the best in the market, but how do they provide us with such relevant recommendations?</p>
  
  <p>Recently, we have been involved with similar recommendation kind of project, but would surely like to know about the in and outs of the Amazon recommendation technology from a technical standpoint. </p>
  
  <p>Any inputs would be highly appreciated. </p>
  
  <p><strong>Update:</strong></p>
  
  <p>This <a href="http://www.google.com/patents?id=dtp6AAAAEBAJ&amp;printsec=abstract&amp;zoom=4&amp;source=gbs_overview_r&amp;cad=0#v=onepage&amp;q=&amp;f=false" rel="noreferrer">patent</a> explains how personalized recommendations are done but it is not very technical, and so it would be really nice if some insights could be provided. </p>
  
  <p>From the comments of Dave, <a href="http://en.wikipedia.org/wiki/Affinity_analysis" rel="noreferrer">Affinity Analysis</a> forms the basis for such kind of Recommendation Engines. Also here are some good reads on the Topic</p>
  
  <ol>
  <li><a href="http://www.information-management.com/specialreports/20061031/1067598-1.html" rel="noreferrer">Demystifying Market Basket Analysis</a></li>
  <li><a href="http://people.revoledu.com/kardi/tutorial/MarketBasket/index.htm" rel="noreferrer">Market Basket Analysis</a></li>
  <li><a href="http://it.toolbox.com/blogs/enterprise-solutions/affinity-analysis-14726" rel="noreferrer">Affinity Analysis</a></li>
  </ol>
  
  <p><strong>Suggested Reading:</strong></p>
  
  <ol start="3">
  <li><a href="https://rads.stackoverflow.com/amzn/click/com/1558604898" rel="noreferrer" rel="nofollow noreferrer">Data Mining: Concepts and Technique</a></li>
  </ol>