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SSD
2001
Springer
145views Database» more  SSD 2001»
15 years 2 months ago
Continuous Queries within an Architecture for Querying XML-Represented Moving Objects
The development of spatiotemporal database systems is primarily motivated by applications tracking and presenting mobile objects. Another important trend is the visualization and p...
Thomas Brinkhoff, Jürgen Weitkämper
ICDE
2007
IEEE
89views Database» more  ICDE 2007»
15 years 1 months ago
A Flexible Query Graph Based Model for the Efficient Execution of Continuous Queries
In this paper, we propose a simple and flexible execution model that (i) supports a wide spectrum of alternative optimization and execution strategies and their mixtures, (ii) pro...
Yijian Bai, Hetal Thakkar, Haixun Wang, Carlo Zani...
TKDE
2012
487views Formal Methods» more  TKDE 2012»
12 years 12 months ago
Query Planning for Continuous Aggregation Queries over a Network of Data Aggregators
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...
Rajeev Gupta, Krithi Ramamritham
SIGMOD
2005
ACM
254views Database» more  SIGMOD 2005»
15 years 9 months ago
Conceptual Partitioning: An Efficient Method for Continuous Nearest Neighbor Monitoring
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...
Kyriakos Mouratidis, Marios Hadjieleftheriou, Dimi...
IDEAS
2002
IEEE
170views Database» more  IDEAS 2002»
15 years 2 months ago
Continual Neighborhood Tracking for Moving Objects Using Adaptive Distances
Based on the recent progress of digital cartography, global positioning systems (GPSs), and hand-held devices, there are growing needs of technology that provides neighborhood inf...
Yoshiharu Ishikawa, Hiroyuki Kitagawa, Tooru Kawas...