1430 search results - page 72 / 286 » Query operations for moving objects database systems |
SSD
2005
Springer
14 years 2 months ago
2005
Springer
Most recent research on querying and managing data streams has concentrated on traditional data models where the data come in the form of tuples or XML data. Complex types of strea...
TACAS
1999
Springer
14 years 1 months ago
1999
Springer
We present a theorem-prover based analysis tool for object-oriented database systems with integrity constraints. Object-oriented database specifications are mapped to higher-order...
IDEAS
2000
IEEE
14 years 1 months ago
2000
IEEE
Most operations of the relational algebra or SQL - like projection with duplicate elimination, join, ordering, group by and aggregations - are efficiently processed using a sorted...
VLDB
2009
ACM
14 years 8 months ago
2009
ACM
In this paper, we study the problem of continuous monitoring of reverse k nearest neighbor queries. Existing continuous reverse nearest neighbor monitoring techniques are sensitive...
EDBT
2004
ACM
14 years 2 months ago
2004
ACM
Abstract. We present a cost-based adaptive clustering method to improve average performance of spatial queries (intersection, containment, enclosure queries) over large collections...