In our paper, we shall study these three models and their
different ways of information retrieval and then compare them
based upon the various parameters. Also, we shall conclude as
to which model would be more effective when being used in a
web search engine and the reason supporting our deduction.
An important aspect to foster the quality of results is to
investigate the users’ actions. The links on which the users
click often lead us to know about their site preferences. This
has been found by the analysis of the search engine
transaction logs as performed by [5].