907 search results - page 13 / 182 » Efficient Optimization of Iterative Queries |
PODS
2001
ACM
14 years 7 months ago
2001
ACM
The need to search for complex and recurring patterns in database sequences is shared by many applications. In this paper, we discuss how to express and support efficiently sophis...
BDA
2004
13 years 9 months ago
2004
XQuery is the emerging standard for querying XML data sources. XLive is a light XML/XQuery mediator developed at University of Versailles whose engine processes an XML algebra der...
HICSS
2003
IEEE
14 years 27 days ago
2003
IEEE
The discovery of sequential patterns, which extends beyond frequent item-set finding of association rule mining, has become a challenging task due to its complexity. Essentially, ...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
In this paper, we propose DBSampler, a query execution mechanism to answer "partial selection" queries in peerto-peer databases. A partial selection query is an arbitrar...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Consider multiple users searching for a hotel room, based on size, cost, distance to the beach, etc. Users may have variable preferences expressed by different weights on the attri...