We are teamalrightythen, an amature team of computational guru's stepping up to the Netflix prize challenge.

Sunday, October 22, 2006

New Approaches

The leader board has shown some great progress as of late, to get on it you now need a 0.96 RMSE or lower and the top of the leader board is 0.907, an almost 5% improvement over Cinematch. The push to the .8563 RMSE and $1 million dollar prize will be a tough one.

So Far:
The best we've come up with on the entire probe set so far is 0.98. And that is just using the basic statistics forula's, nothing fancy like content or collaborative filtering yet. We are still struggline with the immensity of the dataset and how to come up with an efficient way to do the collaborative filtering part.

Many have said that the content filtering will not yield any better results however, after a number of preliminary tests using small groups for collaborative filtering our results suggest more data points will be required when predicting for users and/or movies with few ratings or disparate ratings. But hey, we aren't scientists so we could be wasting our time. We might take a little side track here :).

On ward we go, but slower now..

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