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» Numerical constraints on XML data
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SIGMOD
2004
ACM
163views Database» more  SIGMOD 2004»
14 years 7 months ago
Constraint-Based XML Query Rewriting For Data Integration
We study the problem of answering queries through a target schema, given a set of mappings between one or more source schemas and this target schema, and given that the data is at...
Cong Yu, Lucian Popa
ICDE
2005
IEEE
124views Database» more  ICDE 2005»
14 years 8 months ago
XML Views as Integrity Constraints and their Use in Query Translation
The SQL queries produced in XML-to-SQL query translation are often unnecessarily complex, even for simple input XML queries. In this paper we argue that relational systems can do ...
Rajasekar Krishnamurthy, Raghav Kaushik, Jeffrey F...
GECCO
2003
Springer
117views Optimization» more  GECCO 2003»
14 years 17 days ago
A Method for Handling Numerical Attributes in GA-Based Inductive Concept Learners
This paper proposes a method for dealing with numerical attributes in inductive concept learning systems based on genetic algorithms. The method uses constraints for restricting th...
Federico Divina, Maarten Keijzer, Elena Marchiori
DKE
2007
90views more  DKE 2007»
13 years 7 months ago
On utilizing variables for specifying FDs in data-centric XML documents
We are interested in specifying functional dependencies (FDs) for data-centric XML documents (XML documents that are used mainly for data storage). FDs are a natural constraint. S...
Wai Yin Mok
WWW
2005
ACM
14 years 8 months ago
XAR-miner: efficient association rules mining for XML data
In this paper, we propose a framework, called XAR-Miner, for mining ARs from XML documents efficiently. In XAR-Miner, raw data in the XML document are first preprocessed to transf...
Sheng Zhang, Ji Zhang, Han Liu, Wei Wang