6660 search results - page 45 / 1332 » Data Analysis for Query Processing |
TIME
1997
IEEE
15 years 2 months ago
1997
IEEE
Temporal databases provide built-in supports for efficient recording and querying of time-evolving data. In this paper, data clustering issues in temporal database environment are...
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SIGMOD
2010
ACM
14 years 8 months ago
2010
ACM
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...
VLDB
2002
ACM
14 years 9 months ago
2002
ACM
Our experimental analysis of several popular XPath processors reveals a striking fact: Query evaluation in each of the systems requires time exponential in the size of queries in ...
ICDCS
2008
IEEE
15 years 4 months ago
2008
IEEE
We present a simple, yet powerful, approach for the specification and enforcement of authorizations regulating data release among data holders collaborating in a distributed comp...
VLDB
2001
ACM
15 years 2 months ago
2001
ACM
In this paper we propose a new framework for dynamic distributed query processing based on so-called HyperQueries which are essentially query evaluation sub-plans “sitting behin...