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» On the minimization of XML Schemas and tree automata for unr...
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LICS
2010
IEEE
13 years 6 months ago
The Emptiness Problem for Tree Automata with Global Constraints
We define tree automata with global constraints (TAGC), generalizing the well-known class of tree automata with global equality and disequality constraints [14] (TAGED). TAGC can...
Luis Barguñó, Carles Creus, Guillem ...
PODS
2010
ACM
170views Database» more  PODS 2010»
14 years 18 days ago
A learning algorithm for top-down XML transformations
A generalization from string to trees and from languages to translations is given of the classical result that any regular language can be learned from examples: it is shown that ...
Aurélien Lemay, Sebastian Maneth, Joachim N...
ICDT
2010
ACM
259views Database» more  ICDT 2010»
14 years 4 months ago
Forward-XPath and extended register automata on data-trees
We consider a fragment of XPath named `forward-XPath', which contains all descendant and rightwards sibling axes as well as data equality and inequality tests. The satisfiabi...
Diego Figueira
LICS
2012
IEEE
11 years 10 months ago
An Automata Model for Trees with Ordered Data Values
—Data trees are trees in which each node, besides carrying a label from a finite alphabet, also carries a data value infinite domain. They have been used as an abstraction mode...
Tony Tan
DBPL
2005
Springer
135views Database» more  DBPL 2005»
14 years 1 months ago
Type-Based Optimization for Regular Patterns
Pattern matching mechanisms based on regular expressions feature in a number of recent languages for processing XML. The flexibility of these mechanisms demands novel approaches ...
Michael Y. Levin, Benjamin C. Pierce