Earlier this year I was at a conference where the keynote talked about "sentiment analysis" of social media. Using real tweets as examples he went on to debunk

Earlier this year I was at a conference where the keynote talked about "sentiment analysis" of social media. Using real tweets as examples he went on to debunk the current techniques as useless, really, because they can't understand the sentiment. The current techniques he knew of and shared were all keyword based. The OP mentioned the problems with this kind of analysis, and I agree too. Edit: typo.