Fix RMSE calculation

RMSE calculation was not applying the sqrt function to the result. Now fixed and tested.

MRSR v1.4

• Minor fixes and improvements

MRSR v1.3

• Includes the MF method based on Koren et al.'s paper. Implementation is based on https://github.com/huajh/mf_re_sys.

MRSR - Matlab Recommender System Research

MRSR is a set of MATLAB classes for recommender systems research.
The idea is to put all recommendation algorithms in one place, provide a flexible design for researchers to plug in their own recommendation algorithms, and make reliable comparisons by using common evaluation methods.

Matlab Recommender System Research

• Stable release for MRSR.
• The user can download the source code and start experimenting with item-based KNN and sparse coding based recommender systems. The user can add their own recommender system by extending the AbstractExperiment class. Evaluation is handled by the software for the user.
• Evaluation metrics: MAE & RMSE, CPP, Recall, Precision, Personalisation. The user can add other metrics in AbstractExperiment.m.