Pharos: A scalable distributed architecture for locating heterogeneous information sources

R. Dolin, D. Agrawal, A. El Abbadi, L. Dillon

Research output: Contribution to conferencePaper

Abstract

Pharos is a scalable distributed architecture for locating heterogeneous information sources. The system incorporates a hierarchical metadata structure into a multi-level retrieval system. Queries are resolved through an iterative decision-making process. The first step retrieves coarse-grain metadata, about all sources, stored on local, massively replicated, high-level servers. Further steps retrieve more detailed metadata, about a greatly reduced set of sources, stored on remote, sparsely 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 sources over the Internet.

Original languageEnglish
Pages348-355
Number of pages8
Publication statusPublished - 1 Dec 1997
EventProceedings of the 1997 6th International Conference on Information and Knowledge Management, CIKM'97 - Las Vegas, NV, USA
Duration: 10 Nov 199714 Nov 1997

Other

OtherProceedings of the 1997 6th International Conference on Information and Knowledge Management, CIKM'97
CityLas Vegas, NV, USA
Period10/11/9714/11/97

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ASJC Scopus subject areas

  • Decision Sciences(all)
  • Business, Management and Accounting(all)

Cite this

Dolin, R., Agrawal, D., El Abbadi, A., & Dillon, L. (1997). Pharos: A scalable distributed architecture for locating heterogeneous information sources. 348-355. Paper presented at Proceedings of the 1997 6th International Conference on Information and Knowledge Management, CIKM'97, Las Vegas, NV, USA, .