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ICDE
1999
IEEE

Query Routing in Large-Scale Digital Library Systems

9 years 10 months ago
Query Routing in Large-Scale Digital Library Systems
Modern digital libraries require user-friendly and yet responsive access to the rapidly growing, heterogeneous, and distributed collection of information sources. However, the increasing volume and diversity of digital informationavailable online have led to a growing problem that conventional data management systems do not have, namely nding which information sources out of many candidate choices are the most relevant to answer a given user query. We refer to this problem as the query routing problem. We introduce in this paper the notation and issues of query routing, and present a practical solution for designing a scalable query routing system based on multi-levelprogressive pruning strategies. A key idea is to create and maintain user query pro les and source capability pro les independently, and to provide algorithms that can dynamically discover relevant information sources for a given query through the smart use of user query pro les and source capability pro les, including th...
Ling Liu
Added 01 Nov 2009
Updated 01 Nov 2009
Type Conference
Year 1999
Where ICDE
Authors Ling Liu
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