40 search results - page 8 / 8 » ICICLES: Self-Tuning Samples for Approximate Query Answering |
GIS
2007
ACM
14 years 6 months ago
2007
ACM
Many Geographic Information System (GIS) applications must handle large geospatial datasets stored in raster representation. Spatial joins over raster data are important queries i...
SIGMOD
1998
ACM
13 years 9 months ago
1998
ACM
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
CIKM
2005
Springer
13 years 10 months ago
2005
Springer
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...
SENSYS
2003
ACM
13 years 10 months ago
2003
ACM
Sensor networks promise viable solutions to many monitoring problems. However, the practical deployment of sensor networks faces many challenges imposed by real-world demands. Sen...
ASIAN
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. This text is an informal review of several randomized algorithms that have appeared over the past two decades and have proved instrumental in extracting efficiently quant...