Title
Pharos: a scalable distributed architecture for locating heterogeneous information sources
Abstract
Pharos is a .sca&zble distributed architecture for locating het- erogeneous informatdon sources. !7he system incorporates a hierarcfiical metaduta structure into a multi-level rettieval system. Queries are resolved through an iterative decision- making process. The first step retrieves coarse-grain meta- data, about all sources, stored on iocal, mastively replicated, high-level servers. Further steps retrieve more detailed mata- data, about a greatly reduced set of souwes, stored on re- mote, sparsety replicated, topic-based mid-level servers. We present results of a simulation which indicate the feasibility of the architecture. We describe the structure, distribution, and retrieval of the metadata in Pharos to enable users to locate desirable information soumes over the Internet.
Year
DOI
Venue
1997
10.1145/266714.266924
International Conference on Information and Knowledge Management
Keywords
DocType
ISBN
scalability,heterogeneous information source,resource discovery,document database,internet,distributed systems,metadata,decision making process,distributed system,distributed architecture
Conference
0-89791-970-X
Citations 
PageRank 
References 
27
8.02
8
Authors
4
Name
Order
Citations
PageRank
Ron Dolin113039.17
Divyakant Agrawal282011674.75
Amr El Abbadi367671569.95
Laura K. Dillon449770.70