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Posted to user@mahout.apache.org by Matt Mitchell <go...@gmail.com> on 2012/08/03 22:27:06 UTC

duplicate preferences

I'm wondering if there are negative side-effects from creating prefs
files that contain duplicates? For example:

100, 200
100, 300
200, 400
100, 200

Similarly, what happens if you feed Mahout a prefs file with
duplicates with different pref values?

Obviously, this isn't something I *want* to do, but it will make the
prefs file generation phase much simpler.

Thanks!

Re: duplicate preferences

Posted by Sean Owen <sr...@gmail.com>.

It overrides older values. Here it would have no effect.