Name of the directory used for storing the output instance data (XML file)
and can be found in searching (Semantic Search) and recommender (Recommender) data directory.
Name of the directory used for storing settings of classes and
can be found in searching (Semantic Search) and recommender (Recommender) data directory.
Template class which will be inherited by the application classes: Semantic Search and Recommender
and contains all the common methods shared among these two sub classes.