1500 search results - page 165 / 300 » Query Optimization in Database Grid |
VLDB
2005
ACM
14 years 9 months ago
2005
ACM
Abstract Declarative queries are proving to be an attractive paradigm for interacting with networks of wireless sensors. The metaphor that "the sensornet is a database" i...
ICDE
2010
IEEE
14 years 9 months ago
2010
IEEE
Given a positive value r, a circular range query returns the objects that lie within the distance r of the query location. In this paper, we study the circular range queries that c...
PODS
2008
ACM
14 years 9 months ago
2008
ACM
In the rank join problem, we are given a set of relations and a scoring function, and the goal is to return the join results with the top K scores. It is often the case in practic...
VLDB
2002
ACM
13 years 8 months ago
2002
ACM
Accurate prediction of operator execution time is a prerequisite for database query optimization. Although extensively studied for conventional disk-based DBMSs, cost modeling in ...
CIDR
2003
13 years 10 months ago
2003
Speculation is an every day phenomenon whereby one acts in anticipation of particular conditions that are likely to hold in the future. Computer science research has seen many suc...