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» The DSD Schema Language
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JIIS
2008
95views more  JIIS 2008»
13 years 7 months ago
Approximate schemas, source-consistency and query answering
We use the Edit distance with Moves on words and trees and say that two regular (tree) languages are -close if every word (tree) of one language is -close to the other. A transduc...
Michel de Rougemont, Adrien Vieilleribière
ICDE
2006
IEEE
169views Database» more  ICDE 2006»
14 years 9 months ago
Making Designer Schemas with Colors
XML schema design has two opposing goals: elimination of update anomalies requires that the schema be as normalized as possible; yet higher query performance and simpler query exp...
Nuwee Wiwatwattana, H. V. Jagadish, Laks V. S. Lak...
CIKM
2004
Springer
14 years 29 days ago
Extending and inferring functional dependencies in schema transformation
We study the representation, derivation and utilization of a special kind of constraints in multidatabase systems. A major challenge is when component database schemas are schemat...
Qi He, Tok Wang Ling
BTW
2007
Springer
236views Database» more  BTW 2007»
13 years 11 months ago
A Classification of Schema Mappings and Analysis of Mapping Tools
: Schema mapping techniques for data exchange have become popular and useful tools both in research and industry. A schema mapping relates a source schema with a target schema via ...
Frank Legler, Felix Naumann
SIGMOD
2001
ACM
132views Database» more  SIGMOD 2001»
14 years 7 months ago
Describing Semistructured Data
We introduce a rich language of descriptions for semistructured tree-like data, and we explain how such descriptions relate to the data they describe. Various query languages and ...
Luca Cardelli