Collaborative filtering prediction mechanism and recommendation system

Introduction :

Recommendation systems are at the heart of our web activity. The objective is to produce a personalized list of suggestions (products, links to click, …) for a “customer” (visitor of a site, potential buyer of a product, …) in relation with his concerns and expectations.

• Interest for the “customer” : (quick) orientation towards the most relevant elements, reduce the search time, improve the user experience…
• Interest for the “seller” : more sales…