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» Experience in Extending Query Engine for Continuous Analytic...
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VLDB
2002
ACM
188views Database» more  VLDB 2002»
13 years 4 months ago
Continuous Nearest Neighbor Search
A continuous nearest neighbor query retrieves the nearest neighbor (NN) of every point on a line segment (e.g., "find all my nearest gas stations during my route from point s...
Yufei Tao, Dimitris Papadias, Qiongmao Shen
VLDB
2007
ACM
104views Database» more  VLDB 2007»
14 years 5 months ago
Extending XQuery with Window Functions
This paper presents two extensions for XQuery. The first extension allows the definition and processing of different kinds of windows over an input sequence; i.e., tumbling, slidi...
Irina Botan, Peter M. Fischer, Daniela Florescu, D...
GIS
2008
ACM
14 years 6 months ago
Monitoring continuous queries over streaming locations
We report on our experience from design and implementation of a powerful map application for managing, querying and visualizing evolving locations of moving objects. Instead of bu...
Kostas Patroumpas, Evi Kefallinou, Timos K. Sellis
SIGMOD
2004
ACM
164views Database» more  SIGMOD 2004»
14 years 5 months ago
Dynamic Plan Migration for Continuous Queries Over Data Streams
Dynamic plan migration is concerned with the on-the-fly transition from one continuous query plan to a semantically equivalent yet more efficient plan. Migration is important for ...
Yali Zhu, Elke A. Rundensteiner, George T. Heinema...
GIS
2006
ACM
14 years 6 months ago
Optimization of multiple continuous queries over streaming satellite data
Remotely sensed data, in particular satellite imagery, play many important roles in environmental applications and models. In particular applications that study (rapid) changes in...
Quinn Hart, Michael Gertz