Recommender systems: item-item collaborative filtering system

Some of tasks done in this Repo which is part of a MDA assignment on amazon book ratings dataset:

• Separate a part of the dataset as test data, and then design and implement the algorithm for the rest of the dataset, based on the collaborative method.

Predicted rating for User AQIY318OX7XYW on Book 0001468685: 1.8137943293929428

• Get the RMSE error for the test section(saved as Evaluate_P2).

RMSE: 4.0301960237651135