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Query routing is a process of directing user queries to appropriate servers by
constraining the search space through query refinement and source selection.
The goal of a query routing middleware is to reduce both false positives
(useless answers delivered that fail to fulfill user's needs) and false negatives (useful answers that
the system fails to deliver to the user) in answering a query. Effective query rout
ing not only minimizes the query response time and the overall processing cost, but
also eliminates a lot of unnecessary communication overhead over the global networks and over the individual information sources.
Query Router Software
- Ling Liu, Dave Buttler. Wei Han, Calton Pu, Henrique Paques, Calton Pu, Wei Tang."AQR-Toolkit: An Adaptive Query Routing Middleware for Distributed Data Intensive
ACM SIGMOD 2000, Dallas, Texas (May 14-19).
- Ling Liu.
"Query Routing in Large-scale Digital Library Systems".
International Conference on Data Engineering (ICDE'99), March, 1999 (Sydney,
Australia), IEEE Press.
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Last updated: April 06, 2000.