432 search results - page 5 / 87 » A Set-Theoretic Data Model For Evolving Database Environment... |
ICDE
2000
IEEE
14 years 9 months ago
2000
IEEE
In this paper, we introduce dynamic histograms, which are constructed and maintained incrementally. We develop several dynamic histogram construction algorithms and show that they...
GISCIENCE
2008
Springer
13 years 8 months ago
2008
Springer
A trajectory is the time-stamped path of a moving entity through space. Given a set of trajectories, this paper proposes new conceptual definitions for a spatio-temporal pattern n...
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
Abstract-- Many applications are driven by evolving data -patterns in web traffic, program execution traces, network event logs, etc., are often non-stationary. Building prediction...
CAISE
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. Information systems are vulnerable to accidental or malicious attacks. Security models for commercial computer systems exist, but information systems security is often ig...
DAWAK
2006
Springer
13 years 11 months ago
2006
Springer
More and more integration systems use ontologies to solve the problem of semantic heterogeneities between autonomous databases. To automate the integration process, a number of the...