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» Schema Design for Uncertain Databases
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AMW
2009
13 years 8 months ago
Schema Design for Uncertain Databases
We address schema design in uncertain databases. Since uncertain data is relational in nature, decomposition becomes a key issue in design. Decomposition relies on dependency theo...
Anish Das Sarma, Jeffrey D. Ullman, Jennifer Widom
SIGMOD
2008
ACM
122views Database» more  SIGMOD 2008»
13 years 10 months ago
UQBE: uncertain query by example for web service mashup
The UQBE is a mashup tool for non-programmers that supports query-by-example (QBE) over a schema made up by the user without knowing the schema of the original sources. Based on a...
Jun'ichi Tatemura, Songting Chen, Fenglin Liao, Ol...
ER
2005
Springer
140views Database» more  ER 2005»
14 years 4 months ago
Schema Integration Based on Uncertain Semantic Mappings
Abstract. Schema integration is the activity of providing a unified representation of multiple data sources. The core problems in schema integration are: schema matching, i.e. the...
Matteo Magnani, Nikos Rizopoulos, Peter McBrien, D...
ICDE
2009
IEEE
126views Database» more  ICDE 2009»
15 years 19 days ago
Aggregate Query Answering under Uncertain Schema Mappings
Recent interest in managing uncertainty in data
Avigdor Gal, Maria Vanina Martinez, Gerardo I. Sim...
BTW
2007
Springer
145views Database» more  BTW 2007»
14 years 5 months ago
Conceptual XML Schema Evolution - the CoDEX Approach for Design and Redesign
Abstract. Most available approaches for XML schema evolution specify the evolution steps for an XML schema or a DTD. This article will show that schema evolution can also be realiz...
Meike Klettke