350 search results - page 21 / 70 » An optimization framework for map-reduce queries |
BNCOD
1997
15 years 1 months ago
1997
With the substantial change of declarative query languages from plain SQL to the so-called \object SQLs", in particular OQL, there has surprisingly been not much change in the...
99
Voted
EDBT
2010
ACM
15 years 5 months ago
2010
ACM
Most modern RDBMS depend on the query processing optimizer’s cost model to choose the best execution plan for a given query. Since the physical IO (PIO) is a costly operation to...
105
Voted
MDM
2005
Springer
15 years 6 months ago
2005
Springer
In this paper we propose a query-driven approach for tuning the time/energy trade-off in sensor networks with mobile sensors. The tuning factors include re-positioning of mobile s...
87
Voted
ICDE
2010
IEEE
15 years 19 days ago
2010
IEEE
— We discuss the problem of resource provisioning for database management systems operating on top of an Infrastructure-As-A-Service (IaaS) cloud. To solve this problem, we descr...
127
click to vote
SIGMOD
2010
ACM
14 years 10 months ago
2010
ACM
Given a graph database D and a query graph g, an exact subgraph matching query asks for the set S of graphs in D that contain g as a subgraph. This type of queries find important...