title: Hot topics extraction from Twitter
body: <p>I am building a website of finding and showing the hottest topics curretly on Twitter for my final project. Does anyone know how to <em>extract</em> the topics from the huge amount of tweets in the last week, or in a single day? I'm also wondering how to show the topics like a tag cloud on <a href="http://tweet3d.com/" rel="nofollow">http://tweet3d.com/</a> and show the trend of each topic like <a href="http://trendistic.indextank.com/" rel="nofollow">http://trendistic.indextank.com/</a>. </p>
  
  <p>I really need your help since this final project dues at the end of this month. My partner asks me to use Flash Builder, I'm also learning to use that. Thanks guys.</p>
  
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  <p>Additional Info(11/20/2011): after I do a search on Google, I come to this paper:<em> comparing Twitter and traditional media using Topic Model</em>,you may access it with this link: <a href="http://www.mysmu.edu/faculty/jingjiang/papers/ECIR%2711.pdf" rel="nofollow">paper</a>, but I cannot understand the model since I lack the related background.</p>