Re: Unsubscribe to MAHOUT

2010-04-30 Thread Sean Owen
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So you need to mail mahout-dev-unsubscr...@apache.org. There is nobody
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Re: [jira] Updated: (MAHOUT-387) Cosine item similarity implementation

2010-04-30 Thread Sebastian Schelter
Hi Sean,

then I'll spare benchmarking the patch you sent, I'm glad you like the
original version of the code.

Sebastian

Btw: our discussion here also helps me fill the pages of my diploma
thesis with interesting stuff ;)



Sean Owen schrieb:
 Nah, scratch that too. The simple version of this idea doesn't scale,
 and I was unable to get the current version to run at all
 significantly differently in speed. It's just good as-is.

 Now there is a non-distributed similarity implementation that matches
 what this does, which was the original question.

 Sean

 On Wed, Apr 28, 2010 at 7:14 PM, Sean Owen sro...@gmail.com wrote:
   
 Actually scratch that patch I sent over. I see the trick now that
 makes the existing approach quite good. I think I can make a version
 that preserves that trick and still streamlines the processing. I will
 benchmark and report back if successful.

 On Wed, Apr 28, 2010 at 3:20 PM, Sean Owen sro...@gmail.com wrote:
 
 Sorry, typo, that's what I meant. yes the difference isn't *that* large!
 It may be worse in practice since you have a few users with very many prefs.
 It may also be beneficial to simply have one fewer phase and throw
 around less data. I will also try to benchmark since really that's the
 only way to know.