title: How to use ontologies
body: <p>I have this question. I can understand that the web pages is only interpretable by humans not by machines. So we create vocabularies and semantics and represent the information in rdf in a directed graph format so that the machines can even interpret it. We have subject predicate and object where the subjects,predicate and objects can be uris. But I am confused are we supposed to have a rdf corresponding to each page of a website so that for interpretation by human the humans can see the webpage but the machines, they can use the rdf version. Am I correct?</p>
  
  <p>Also I have seen that using ontology engineering, we generate rules using association rule analysis. I have some confusion in this as well. Lets say  I want to create an ontology for a domain lets say medical. Then I using association rule mining I mine the websites, or other data to get some associations. But doing this I can only define relation between concepts. How can I get a new concept itself using this mining?</p>
  
  <p>Also how can we use this newly created ontologies. Are we supposed to add them to the website how? I am not clear. So need some suggesions?</p>