Anticipatory User Interfaces for Search Result Visualization Using Query Lookahead
Bienvenido Velez-Rivera, Juan Carlos Torres · Journal of the Association for Information Systems · 2001
This paper presents the first anticipatory user interface for search result visualization that exploits query lookahead, a technique that eagerly evaluates refined queries automatically generated from an initial user query.A selected collection of refined queries is displayed to the user as an interactive query hierarchy.Each child query refines its parent with additional indexing terms that are extracted from the documents that match the parent query.The user interface presents the results of each selected child query in advance.Interactive query hierarchies can also break down a large and imprecise result set in categories determined by the indexing terms appearing in the documents in the result set.Inforadar, our new prototype network search system, uses a novel, fast query lookahead algorithm achieving a throughput of 7000 refined queries per second in a database of about eighty thousand documents.