176 search results - page 5 / 36 » Answering aggregate queries in data exchange |
DEXAW
2008
IEEE
14 years 1 months ago
2008
IEEE
The aim of this work is to provide a robust way for peers with heterogeneous data sources to exchange information in an unreliable network. We address this problem in two ways. Fi...
DOLAP
2005
ACM
13 years 9 months ago
2005
ACM
A novel framework for providing probabilistically-bounded approximate answers to non-holistic aggregate range queries in OLAP is presented in this paper. Such a framework allows u...
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
Keyword search has been recently extended to relational databases to retrieve information from text-rich attributes. However, all the existing methods focus on finding individual...
ICDM
2010
IEEE
13 years 5 months ago
2010
IEEE
-- In this paper, we put forward our approach for answering aggregated queries over imprecise data using domain specific taxonomies. A new concept we call the weighted hierarchical...
ICDT
2010
ACM
14 years 9 days ago
2010
ACM
In XML data exchange, a schema mapping specifies rules for restructuring a source document under the target schema, and queries over the target document must be answered in a way...