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SIGMOD
2002
ACM
124views Database» more  SIGMOD 2002»
14 years 9 months ago
Quadtree and R-tree indexes in oracle spatial: a comparison using GIS data
Spatial indexing has been one of the active focus areas in recent database research. Several variants of Quadtree and R-tree indexes have been proposed in database literature. In ...
Kothuri Venkata Ravi Kanth, Siva Ravada, Daniel Ab...
EDBT
2002
ACM
132views Database» more  EDBT 2002»
14 years 9 months ago
A Framework for the Physical Design Problem for Data Synopses
Maintaining statistics on multidimensional data distributions is crucial for predicting the run-time and result size of queries and data analysis tasks with acceptable accuracy. To...
Arnd Christian König, Gerhard Weikum
EDBT
2006
ACM
129views Database» more  EDBT 2006»
14 years 9 months ago
Efficient Quantile Retrieval on Multi-dimensional Data
Given a set of N multi-dimensional points, we study the computation of -quantiles according to a ranking function F, which is provided by the user at runtime. Specifically, F compu...
Man Lung Yiu, Nikos Mamoulis, Yufei Tao
PERCOM
2008
ACM
14 years 8 months ago
A Survey of Current Directions in Service Placement in Mobile Ad-hoc Networks
Service placement deals with the problem of selecting which node in a network is most suitable for hosting a service that responds to queries from other nodes. Optimally placing s...
Georg Wittenburg, Jochen H. Schiller
CCGRID
2007
IEEE
14 years 3 months ago
Design of a Scalable Peer-to-Peer Information System Using the GT4 Index Service
Grid applications need efficient access to information about available resources and services. Typically, this access is provided by information services that are often organized ...
Shishir Bharathi, Ann L. Chervenak