262 search results - page 16 / 53 » Spatio-temporal join selectivity |
VLDB
1992
ACM
13 years 11 months ago
1992
ACM
In this paper, we explore the execution of pipelined hash joins in a multiprocessor-based database system. To improve the query execution, an innovative approach on query executio...
WWW
2006
ACM
14 years 8 months ago
2006
ACM
An important issue arising from Peer-to-Peer applications is how to accurately and efficiently retrieve a set of K best matching data objects from different sources while minimizi...
AIME
2001
Springer
14 years 3 days ago
2001
Springer
Abstract. Cancer spread is a non-deterministic dynamic process. As a consequence, the design of an assistant system for the diagnosis and prognosis of the extent of a cancer should...
ICDE
2009
IEEE
14 years 2 months ago
2009
IEEE
— Complex ad hoc join queries over enterprise databases are commonly used by business data analysts to understand and analyze a variety of enterprise-wide processes. However, eff...
ICDE
2007
IEEE
14 years 9 months ago
2007
IEEE
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...