What can you use when you’ve to let the access of protected resources by a third part application? The Open Authentication standard (briefly OAuth) is useful in order to authenticate and authorize user credentials from an external application and grant the access of your resources.
A recommendation system is very common to see in every web site today. Mahout could achieve this aim to produce recommendations on a web site. In this article I’d like to illustrate how to get it using Mahout integrated with Hadoop that’s useful for dealing with a large number of data.