Abstract
Most web structures are huge, intricate and users often
miss the purpose of their inquest, or get uncertain results
when they try to navigate through them. Internet is
enormous compilation of multivariate data. Several
problems prevent effective and efficient knowledge
discovery for required better knowledge management
techniques it is important to retrieve accurate and
complete data. The hidden web, also known as the
invisible web or deep web, has given rise to a novel issue
of web mining research. a huge amount documents in the
hidden web, as well as pages hidden behind search forms,
specialized databases.