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ISPA
2004
Springer
15 years 8 months ago
Location-Dependent Query Results Retrieval in a Multi-cell Wireless Environment
The demand of information services is popular in recent years. However, the requested of correct answer in a mobile environment needs to have more attentions. This is due to the sc...
James Jayaputera, David Taniar
107
Voted
MDM
2004
Springer
110views Communications» more  MDM 2004»
15 years 8 months ago
Universal Trajectory Queries for Moving Object Databases
In this paper, we consider a data model for uncertain trajectories of moving objects. In our model, the trajectory is a vector of uniform stochastic processes. We study “univers...
Hoda Mokhtar, Jianwen Su
VLDB
1993
ACM
99views Database» more  VLDB 1993»
15 years 6 months ago
Control of an Extensible Query Optimizer: A Planning-Based Approach
III this paper we address the problem of controlling the execution of a query optimizer. We describe a control for the optimization process that is based on planning. The controll...
Gail Mitchell, Umeshwar Dayal, Stanley B. Zdonik
SOFTWARE
1998
15 years 2 months ago
A New Way to Query GISs on the Web
BMS organizes information in abstract name spaces and lets users refer to thedatathroughtheirvalues,whileaspatialDBMSorganizesinformationinconcrete 2D geometric spaces and lets use...
Serena Coetzee, Judith Bishop
CVPR
2004
IEEE
16 years 4 months ago
Selecting Ghosts and Queues from a Car Trackers Output Using a Spatio-Temporal Query Language
This paper presents a spatio-temporal query language useful for video interpretation and event recognition. The language is suited to describe configurations of objects moving on ...
Christian Köhler