140 search results - page 5 / 28 » Continuous Constraint Query Evaluation for Spatiotemporal St... |
SOFSEM
2010
Springer
14 years 4 months ago
2010
Springer
Preference queries have received considerable attention in the recent past, due to their use in selecting the most preferred objects, especially when the selection criteria are con...
CIKM
2004
Springer
14 years 28 days ago
2004
Springer
We explore join optimizations in the presence of both timebased constraints (sliding windows) and value-based constraints (punctuations). We present the first join solution named...
SSDBM
2008
IEEE
14 years 1 months ago
2008
IEEE
Abstract. Existing approaches to the management of streaming positional updates generally assume that all active user requests have equal importance, ignoring the possibility of an...
ICDCS
2005
IEEE
14 years 1 months ago
2005
IEEE
This paper presents MobiQuery, a spatiotemporal query service that allows mobile users to periodically gather information from their surrounding areas through a wireless sensor ne...
Publication
Spatio-temporal data streams that are generated from mobile stream sources (e.g., mobile sensors) experience similar environmental conditions that result in distinct phenomena. Sev...