Implementation of Efficient Extraction of Deep Web by Applying Structured Queries and Maintaining Repository Freshness
Information on Web is growing at extremely rapid rate. To retrieve this huge amount of information a lot of search engines are used. Information on the Web which cannot be indexed by traditional search engines is called deep Web while, the amount of information in the Web which can be easily indexed by traditional search engine is called surface Web. Retrieval of data from the contents of deep Web databases requires some additional process which includes filling out deep Web databases access points, i.e., filling forms in the Web and construction of structured queries. Traditional search engines are not capable to fill out the forms and submit the queries automatically and consequently, they are not capable to access or index the information from deep Web straight.