320 search results - page 24 / 64 » A Theory of Spatio-Temporal Database Queries |
PODS
2007
ACM
14 years 7 months ago
2007
ACM
We show that relational algebra calculations for incomplete databases, probabilistic databases, bag semantics and whyprovenance are particular cases of the same general algorithms...
DEXA
1997
Springer
13 years 11 months ago
1997
Springer
Abstract. In this paper, a new approach for retrieval from semistructured photographic collections is described. We have developed a retrieval model based on the Dempster-Shafer th...
ICDT
2010
ACM
13 years 11 months ago
2010
ACM
Given a database instance and a corresponding view instance, we address the view definitions problem (VDP): Find the most succinct and accurate view definition, when the view quer...
DEBS
2011
ACM
2011
ACM
DejaVu: a complex event processing system for pattern matching over live and historical data streams
12 years 11 months ago
This short paper provides an overview of the DejaVu complex event processing (CEP) system, with an emphasis on its novel architecture and query optimization techniques for correla...
INDOCRYPT
2004
Springer
14 years 28 days ago
2004
Springer
Random data perturbation (RDP) has been in use for several years in statistical databases and public surveys as a means of providing privacy to individuals while collecting informa...