6846 search results - page 128 / 1370 » Querying a summary of database |
VLDB
1992
ACM
15 years 2 months ago
1992
ACM
In this paper, we discuss issues involving temporal data fragmentation, temporal query processing, and query optimization in multiprocessor database machines. We propose parallel ...
PVLDB
2008
14 years 9 months ago
2008
Summaries of massive data sets support approximate query processing over the original data. A basic aggregate over a set of records is the weight of subpopulations specified as a ...
ICDE
2010
IEEE
15 years 9 months ago
2010
IEEE
Abstract-- This work presents a novel index structure, MHRtree, for efficiently answering approximate string match queries in large spatial databases. The MHR-tree is based on the ...
ICDCS
1996
IEEE
15 years 2 months ago
1996
IEEE
Access to large numbers of data sources introduces new problems for users of heterogeneous distributed databases. End users and application programmers must deal with unavailable ...
SAC
1994
ACM
15 years 2 months ago
1994
ACM
In this paper, the interest of fuzzy sets and possibility theory in the context of databases is presented. It is shown that these " notions provide an homogeneous framework f...