Clever Geek Handbook

Lexical Analysis Libraries

I would like to make a piece of software capable of recognizing if a sentence is positive or negative.

Are there lexical analysis libraries arround?

I don't know where to start.

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2 answers


The common name for this task is sentiment analysis



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This field is called natural language processing, and it's an incredibly tricky question - you don't just need to parse words that are positive / negative, but you also need to parse modifiers (like "Something is wrong").



As usual, Wikipedia contains some information. If you've just played around a bit with this, I suggest trying a simple system (for example, recognizing "good" and "bad" and "no") and create one.

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