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| Category | Value | ||
| Available via | http://dbpubs.stanford.edu/pub/1999-63 | ||
| Submitted on | 31st of October 2001 | ||
| Author | Gravano, Luis; Garcia-Molina, Hector | ||
| Title | Generalizing GlOSS to Vector-Space Databases and Broker Hierarchies | ||
| Date of publication | 30th of July 1999 | ||
| Citation | Gravano, Luis; Garcia-Molina, Hector. Generalizing GlOSS to Vector-Space Databases and Broker Hierarchies, | ||
| Number of pages | 24 | ||
| Language | English | ||
| Project | Digital Libraries | ||
| Type | Other | ||
| Subject group | Digital Libraries | ||
| 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. | ||
| Notes | Previous number = SIDL-WP-1999-0109. This working paper was originally published in April 1995. | ||
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