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ICDE
2007
IEEE
120views Database» more  ICDE 2007»
15 years 10 months ago
Optimizing State-Intensive Non-Blocking Queries Using Run-time Adaptation
Main memory is a critical resource when processing non-blocking queries with state intensive operators that require real-time responses. While partitioned parallel processing can ...
Bin Liu, Mariana Jbantova, Elke A. Rundensteiner
PCI
2005
Springer
15 years 9 months ago
Closest Pair Queries with Spatial Constraints
Abstract. Given two datasets DA and DB the closest-pair query (CPQ) retrieves the pair (a,b), where a ∈ DA and b ∈ DB, having the smallest distance between all pairs of objects...
Apostolos N. Papadopoulos, Alexandros Nanopoulos, ...
DEXAW
2000
IEEE
92views Database» more  DEXAW 2000»
15 years 8 months ago
Consistent Queries over Cardinal Directions across Different Levels of Detail
Current models for cardinal directions, such as north and northeast, are either point-based or region-based, but no models exist that apply equally, independent of the geometric d...
Roop K. Goyal, Max J. Egenhofer
ESCIENCE
2007
IEEE
15 years 7 months ago
Storing and Querying Scientific Workflow Provenance Metadata Using an RDBMS
Provenance management has become increasingly important to support scientific discovery reproducibility, result interpretation, and problem diagnosis in scientific workflow enviro...
Artem Chebotko, Xubo Fei, Cui Lin, Shiyong Lu, Far...
DEXA
2006
Springer
151views Database» more  DEXA 2006»
15 years 5 months ago
An Incremental Refining Spatial Join Algorithm for Estimating Query Results in GIS
Geographic information systems (GIS) must support large georeferenced data sets. Due to the size of these data sets finding exact answers to spatial queries can be very time consum...
Wan D. Bae, Shayma Alkobaisi, Scott T. Leutenegger