I spent some time learning about this, when I was dabbling with the Netflix contest. There was a fair bit of discussion on their forum regarding SVD & related algorithms. The winner used a “blended” approach, which weighted results from numerous different algorithms. The success of the algorithm was based on the RMSE of the predictions compared with a test set of data.
I spent some time learning about this, when I was dabbling with the Netflix contest. There was a fair bit of discussion on their forum regarding SVD & related algorithms. The winner used a “blended” approach, which weighted results from numerous different algorithms. The success of the algorithm was based on the RMSE of the predictions compared with a test set of data.