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ICDE
2004
IEEE
144views Database» more  ICDE 2004»
14 years 11 months ago
Spatio-Temporal Aggregation Using Sketches
Several spatio-temporal applications require the retrieval of summarized information about moving objects that lie in a query region during a query interval (e.g., the number of m...
Yufei Tao, George Kollios, Jeffrey Considine, Feif...
ICDE
2000
IEEE
144views Database» more  ICDE 2000»
14 years 11 months ago
Power Conservative Multi-Attribute Queries on Data Broadcast
In this paper, we study power conservation techniques for multi-attribute queries on wireless data broadcast channels. Indexing data on broadcast channels can improve client filte...
Qinglong Hu, Wang-Chien Lee, Dik Lun Lee
VLDB
2007
ACM
121views Database» more  VLDB 2007»
14 years 10 months ago
TRAX - Real-World Tracking of Moving Objects
A range of mobile services rely on knowing the current positions of populations of so-called moving objects. In the ideal setting, the positions of all objects are known always an...
Christian S. Jensen, Stardas Pakalnis
SIGMOD
2003
ACM
134views Database» more  SIGMOD 2003»
14 years 10 months ago
Location-based Spatial Queries
In this paper we propose an approach that enables mobile clients to determine the validity of previous queries based on their current locations. In order to make this possible, th...
Jun Zhang, Manli Zhu, Dimitris Papadias, Yufei Tao...
EDBT
2006
ACM
114views Database» more  EDBT 2006»
14 years 10 months ago
Resource Adaptive Periodicity Estimation of Streaming Data
Abstract. Streaming environments typically dictate incomplete or approximate algorithm execution, in order to cope with sudden surges in the data rate. Such limitations are even mo...
Michail Vlachos, Deepak S. Turaga, Philip S. Yu