170 search results - page 17 / 34 » Approximate Range Selection Queries in Peer-to-Peer Systems |
AMW
2009
13 years 9 months ago
2009
Abstract. A Data Warehouse (DW) is a data repository that organizes and physically integrates data from multiple sources under special kinds of schemas. A DW is composed by a set o...
NLDB
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. In this paper, we target document ranking in a highly technical field with the aim to approximate a ranking that is obtained through an existing ontology (knowledge stru...
SISAP
2009
IEEE
14 years 3 months ago
2009
IEEE
Abstract—We propose a strategy to perform query processing on P2P similarity search systems based on peers and superpeers. We show that by approximating global but resumed inform...
ICDE
2001
IEEE
14 years 9 months ago
2001
IEEE
Spatial Joins are important and time consuming operations in spatial database management systems. It is crucial to be able to accurately estimate the performance of these operatio...
VLDB
2001
ACM
14 years 27 days ago
2001
ACM
Estimating the number of distinct values is a wellstudied problem, due to its frequent occurrence in queries and its importance in selecting good query plans. Previous work has sh...