Tuesday, April 7, 2009

NSVD1 Failure

I went through my NSVD1 code many times, rewriting it completely four or five times, modifying it countless times, but never beating that 1.013. I even redid the math in that paper to make sure there weren't typos, and I don't have time to try and figure that out anymore.

With how far through the semester I am now, I don't have time to try any other algorithms, which is very dissapointing but I'll live. So the remainder of my time is going to spent on optimizing the BRISMF code that I already have and try and squeeze as much out of that as possible before I write my paper.

Friday, April 3, 2009

NSVD1 Grr...

So I tried to work on Gravity's training algorithm for Patarek's NSVD1 recommender.  And utterly failed.  I'm eathier reading it wrong, typing wrong, or not understanding the notation, but it's supposed to give me a RMSE of 0.9344, but mine has gone between. 1.013 and 2 something.  Yeah...

So I'm going to be redoing that one.  Hopefully after getting that working, I can do the Hybrid and then finally get on to a few of my own modifications.  I only need to figure out what they should be.