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A comment on Decision tree learner will predict whether you prefer cats or dogs. Parent comment

Re:Decision tree learner will predict whether you prefer cat... by bockris on Wednesday December 07, 2011 @02:23PM (#3325411)
Followup: I see now that 'city' is in and 'region' is out.

Did you do that or did it figure it out on it's own.

Is there anyway to see the full decision tree without re-voting? I've accidentily refreshed a couple of times so my extra votes are skewing the tree but I'm interested in seeing how the tree evolves.

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Re:Decision tree learner will predict whether you prefer cat... by sllrpr on Wednesday December 07, 2011 @02:45PM (#3325552)
It figures it out on its own.

You can see the entire tree at http://cord-sa.appspot.com/dumpDT

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Re:Decision tree learner will predict whether you prefer cat... by bockris on Wednesday December 07, 2011 @02:50PM (#3325579)
Nice!

How big is the pool of variables it can choose from?

Any insight on why it choose 'region' and 'browserHeight' first?

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Re:Decision tree learner will predict whether you prefer cat... by sllrpr on Wednesday December 07, 2011 @03:06PM (#3325671)
Ugh, I thought I'd answered this but looks like HN lost my response :-(

> How big is the pool of variables it can choose from?

Currently it is just: screenWidth/Height, browserWidth/Height, browser, browserVersion, os, referrer, city, region, country.

It picks the variables based on how well they partition the datasets into diverse sub-groups. This is the code that does that job:

https://github.com/sanity/quickdt/blob/master/src/main/java/...

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