Note you can't use lingpipe commercially without a license though I believe.
Sent from my iPhone On 8 Jul 2011, at 18:20, Bruno Adam Osiek <baos...@gmail.com> wrote: > Try Lingpipe. They use Language Models as their engine for sentiment > analysis. At (http://alias-i.com/lingpipe/) you will find a step-by-step > tutorial on how to implement it. > > On 07/08/2011 07:14 AM, Zheng Qin wrote: >> Hi, >> >> We are starting a project on Twitter data sentiment analysis. We have >> installed LucidWorks, which also has a Solr admin page. By reading the >> posts, it seems that sentiment analysis can be done by using OpenNLP or >> machine learning (Mahout or Weka). Can you share with us which tool is good >> at classifying positive/negative tweets? Also how to use it together with >> Solr (we only found one posted by Grant on March 16 2010 about integrating >> Solr with Mahout). Your reply will be appreciated. Thanks. >> >