How does Stack Overflow's subjective question detector work? [closed]

Posted by csl on Stack Overflow See other posts from Stack Overflow or by csl
Published on 2009-10-28T16:30:23Z Indexed on 2010/05/11 4:24 UTC
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classification

When writing a question in Stack Overflow, it will give you a red bar with a warning if the question looks subjective.

Subjective or non-programming questions (e.g., What is your faviourite programming language?) seem to be easily recognized.

How, exactly, isthis done? Heuristics, algorithms, machine learning?

I'm amazed!

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