Ask HN: Review ContextSense - deduces context and sentiment for any URL/text

Re:Ask HN: Review ContextSense - deduces context and sentime... by paraschopra on Thursday September 10, 2009 @11:44AM (#815459)

Hey guys, my startup (Wingify) has exposed an API for determining sentiment and context from any URL or piece of text. I'll be glad if you could review it.

ContextSense was made to demonstrate our contextual targeting capabilities -- and sentiment aspect was added to avoid traditional blunders of displaying ads on pages/news on catastrophies. Best to try ContextSense with text heavy URLs. Also try it with news items (both positive and negative).

I will be happy to provide API access in case any of you is interested in trying it out.

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Re:Ask HN: Review ContextSense - deduces context and sentime... by elcron on Thursday September 10, 2009 @05:23PM (#816230)

Cool! I tried something like this, it classified blog posts into 100 different moods... it had ~8% accuracy (It also classified as positive or negative, but I don't remember the accuracy, I'll have to dig it up at some point...). Good luck with it.

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Re:Ask HN: Review ContextSense - deduces context and sentime... by paraschopra on Friday September 11, 2009 @12:16AM (#816835)

Do you remember what was it? I will be really curious to have a look. Thanks.

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Re:Ask HN: Review ContextSense - deduces context and sentime... by elcron on Friday September 11, 2009 @02:56PM (#817871)

It was accurate around 56% of the time classifying as positive, negative, or neutral. I used a naive Bayesian classifier and guessed the highest rather than showing the percent positive.

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