320 search results - page 37 / 64 » A Theory of Spatio-Temporal Database Queries |
EDBT
2012
ACM
11 years 10 months ago
2012
ACM
Many stream processing applications require access to a multitude of streaming as well as stored data sources. Yet there is no clear semantics for correct continuous query executi...
EDBT
2008
ACM
14 years 7 months ago
2008
ACM
Abstract. Monitoring aggregates on IP traffic data streams is a compelling application for data stream management systems. Often, such streaming aggregation queries involve joining...
PODS
2000
ACM
13 years 12 months ago
2000
ACM
An estimation algorithm for a query is a probabilistic algorithm that computes an approximation for the size (number of tuples) of the query. One class of estimation algorithms us...
JACM
2000
13 years 7 months ago
2000
We rework parts of the classical relational theory when the underlying domain is a structure with some interpreted operations that can be used in queries. We identify parts of the...
CAISE
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. ID-Logic is a knowledge representation language that extends first-order logic with non-monotone inductive definitions. This paper introduces an ID-Logic based framewor...