Scala and Spark for Big Data Analytics

Recommender system

A recommender system is a subclass of an information filtering system that looks to predict the rating or preference that users usually provide for an item. The concept of recommender systems has become very common in recent years subsequently being applied in different applications.

Figure 6: Different recommender system

The most popular ones are probably products (for example, movies, music, books, research articles, news, search queries, social tags, and so on). Recommender systems can be classified into the following four categories typically:

• Collaborative filtering, also referred to as social filtering that filters ...