U.S. Department of Energy Office of Science Office of Scientific and Technical Information


We need systems, such as federated search, that probe the deep web

Federated search drills down to the deep web where scientific databases reside

(1) A user types in a query, hits send
(2) Query travels to server in Oak Ridge, TN
(3) In Oak Ridge, the query is replicated 61 times and fanned out to servers of national databases around the globe
(4) At each National server, a search is executed in real time
(5) Results transit back to Oak Ridge where they are collected & sorted
(6) A relevant, authoritative result list is returned to the user

Federated search involves a series of steps to create a novel web architecture: