http://www.trahald.com Just another WordPress weblog Fri, 24 Jul 2009 11:03:36 +0000 http://backend.userland.com/rss092 en I created a pseudo-SVD++(3) model (mf_time.cpp in my framework) - one without the |N(u)|^(-.5)*Yi feedback term, and also without the alpha_u*dev_u_hat term (which I found to make the RMSE worse). However the one I initially wrote had a bug in the training and use of the alpha_u_k*dev_u_hat term (the term ... http://www.trahald.com/bug-in-model-oddly-causes-improvement/ The Kadri Framework is meant for the analysis of the Netflix data set. It is based on Icefox's Netflix Recommender Framework. It uses Icefox's framework to build the core data files, and expands on it to allow pre-processing, the use of dates, and blending. Requirements: Qt LAPACK 64-bit OS (or 32-bit OS with increased ... http://www.trahald.com/kadri-framework/ Source code implementing the k-NN K Nearest Neighbors algorithm can be found at this post. It implements Icefox's framework, details of which are in this thread. http://www.trahald.com/knn-source-sode/