37 search results - page 3 / 8 » Query workload-aware overlay construction using histograms |
IS
2011
13 years 3 months ago
2011
In order to process continuous queries over Wireless Sensor Networks (WSNs), sensors are typically organized in a Query Routing Tree (denoted as T) that provides each sensor with ...
BNCOD
2008
13 years 10 months ago
2008
Abstract. Accurate selectivity estimations are essential for query optimization decisions where they are typically derived from various kinds of histograms which condense value dis...
WWW
2007
ACM
14 years 9 months ago
2007
ACM
This paper presents SRing, a structured non DHT P2P overlay that efficiently supports exact and range queries on multiple attribute values. In SRing, all attribute values are inte...
ICDE
2002
IEEE
14 years 10 months ago
2002
IEEE
Obtaining fast and good quality approximations to data distributions is a problem of central interest to database management. A variety of popular database applications including,...
SIGMOD
1998
ACM
14 years 23 days 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 ...