486 search results - page 38 / 98 » Evaluating Top-k Queries over Web-Accessible Databases |
162
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DAGSTUHL
2007
15 years 3 months ago
2007
Abstract Current, data-driven applications have become more dynamic in nature, with the need to respond to events generated from distributed sources or to react to information extr...
108
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VLDB
1998
ACM
15 years 5 months ago
1998
ACM
We propose and evaluate two indexing schemes for improving the efficiency of data retrieval in high-dimensional databases that are incomplete. These schemes are novel in that the ...
136
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SIGMOD
1999
ACM
15 years 5 months ago
1999
ACM
Selectivity estimation of queries is an important and wellstudied problem in relational database systems. In this paper, we examine selectivity estimation in the context of Geogra...
129
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CIKM
2009
Springer
15 years 8 months ago
2009
Springer
RDF is a data model for representing labeled directed graphs, and it is used as an important building block of semantic web. Due to its flexibility and applicability, RDF has bee...
197
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SIGMOD
2006
ACM
16 years 1 months ago
2006
ACM
In outsourced database (ODB) systems the database owner publishes its data through a number of remote servers, with the goal of enabling clients at the edge of the network to acce...