search for: movielens

...#39;ve looked around and I must be missing it because it's probably somewhere. Does someone know how to convert an object of class dgCmatrix to a regular matrix. I can send someone the data if they need it but it's too big to include here. I read the data in using temp<-readMat("movielens.mat") where readMat is from the R.matlab package. But the resulting 2 matrices are S4 object of class dgCmatrix with 6 slots shown below. In the end, I'd actually want to put the 18000 elements of the second matrix into the appropriate locations of the first matrix ( first one has missin...

...IT University,India. I am interested in Clustering of search results Topic. I have been in field of practical machine learning and information retrieval from quite some time. I took various courses/MOOC on Information retrieval and Text Mining and have been working on real life datasets(KDD99,AWID,Movielens). Because the problems you face in real life ML/IR scenario is different is different from what taught in theory.I am also working on R&D on "Hybrid Techniques for Intrusion Detection using Data Mining and Clustering on Newer Datasets". Taking initial look at the docsim folder in xap...