http://tweetsentiments.com uses Machine Learning and NLP for sentiment analysis. No published API access yet(some already available), but it's on the road map. Currently sacrificing some precision for speed, but we will focus on improving precision in the near future.
- [twitter-dev] Detecting positive / negative / question Joseph
- [twitter-dev] Re: Detecting positive / negative / quest... Doug Williams
- [twitter-dev] Re: Detecting positive / negative / q... Joseph
- [twitter-dev] Re: Detecting positive / negative... Bjoern
- [twitter-dev] Re: Detecting positive / nega... Joseph
- [twitter-dev] Re: Detecting positive /... tomz