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All Blog Posts Tagged 'Text Mining' (1)

Can Context Extraction replace Sentiment Analysis?

Sentiment analysis is hard. Most of the systems on the market will clock anywhere around 55-65% for unseen data, even though they might be 85%+ accurate in their cross-validations.

A couple of reasons why creating a generic sentiment analyser is tough;

- There is too much variation in texts across domains, leading to different meanings

- Identifying sarcasm and combination of phrases like, 'not bad' is not equal to 'not' AND 'bad'

At this…

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Added by Manas Ranjan Kar on September 7, 2015 at 12:24am — 4 Comments

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