Practice session for recommender system variants.

In order to run all programs "01-22-2013-", "02-07-2013-matrix-" -add path to the dataset at 0dataset/movielens-data OR -add the dataset_train.txt and dataset_test.txt to the respective project main folder

In order to run programs at "02-20-2013-", "02-21-2013-", "02-25-2013-", "03-11-2013-", "03-13-2013-bpr*" -add path to the dataset at 0dataset/item-prediction-movielens-dataset OR -add the train.txt.mtx and test.txt.mtx to the "Debug" folder in each project

In order to run programs at "03-14-2013-", "03-15-2013-", "03-27-2013-*" -add path to the dataset at 0dataset/item-prediction-movielens-dataset2 OR -add the train.txt and test.txt to the "Debug" folder in each project

Please check whether the program accepts input with "\t" or " " separator and change it according to the file.