Online topic mining with sentiment analysis

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I have now updated the Brede topic mining web-service with sentiment analysis using the AFINN word list.

In the example seen in the images I have a few posts from a recent query on Pfizer on Twitter. The sentiment analysis has a problem on the tweet “Pfizer’s Remoxy Fails to Win FDA Approval” as both the words “win” and “approval” are positive but in the contexts the word “fails” negates which the simple sentiment analyzer fails to detect.

(correction: 20:20)

FirstSecond

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One thought on “Online topic mining with sentiment analysis

    Daniela Balslev said:
    June 24, 2011 at 6:20 pm

    Sentimenter er besvaerlige. Phew… :)

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