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Are there any web apps that detect emotional negativity?

In video, audio, or text?

Note: Can you also tag this as text, negativity, and emotion?

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closed as off topic by Al E., phwd Sep 11 '12 at 4:19

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1 Answer 1

There are several things that do this for twitter. You can try for example that has a very fancy interface. There is also,, and a slightly more complicated

and there is an incredible visualization project done by jonathan harris

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