Gravano, Luis and Garcia-Molina, Hector (1999) Generalizing GlOSS to Vector-Space Databases and Broker Hierarchies. Working Paper. Stanford InfoLab. (Publication Note: This working paper was originally published in April 1995)
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Abstract
As large numbers of text databases have become available on the Internet, it is getting harder to locate the right sources for given queries. In this paper we present gGlOSS, a generalized Glossary-Of-Servers Server, that keeps statistics on the available databases to estimate which databases are the potentially most useful for a given query. gGlOSS extends our previous work, which focused on databases using the boolean model of document retrieval, to cover databases using the more sophisticated vector-space retrieval model. We evaluate our new techniques using real-user queries and 53 databases. Finally, we further generalize our approach by showing how to build a hierarchy of gGlOSS brokers. The top level of the hierarchy is so small it could be widely replicated, even at end-user workstations.
Item Type: | Techreport (Working Paper) | |
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Additional Information: | Previous number = SIDL-WP-1999-0109. This working paper was originally published in April 1995. | |
Subjects: | Computer Science > Digital Libraries | |
Projects: | Digital Libraries | |
Related URLs: | Project Homepage | http://www-diglib.stanford.edu/diglib/pub/ |
ID Code: | 419 | |
Deposited By: | Import Account | |
Deposited On: | 30 Oct 2001 16:00 | |
Last Modified: | 28 Dec 2008 09:16 |
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