Recommendation system techniques and related issues: a survey
Nowadays, e commerce websites are emerging as a new market and allow the millions of product to the user for sale. The selection of product from millions of product requires an additional tool called recommendation system. The recommendation system (RS) helps the user to find the items they are looking for. Collaborative filtering is one of the techniques used in the RSs that is widely studied and used to make recommendation. In this paper, a review of the various methods, algorithms used in the recommender system, the metrics used in RSs and the challenges of recommendation system such as Cold start, Data sparsity, Scalability, Privacy etc. have been discussed.