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» On Quasi-Products of Tree Automata
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XIMEP
2004
ACM
74views Database» more  XIMEP 2004»
15 years 6 months ago
Schema Validation and Type Annotation for Encoded Trees
We argue that efficient support for schema validation and type annotation in XQuery processors deserves as much attention as efficient evaluation techniques for XPath queries have...
Torsten Grust, Stefan Klinger
FSTTCS
2001
Springer
15 years 5 months ago
Rewrite Closure for Ground and Cancellative AC Theories
Given a binary relation IE ∪ IR on the set of ground terms e signature, we define an abstract rewrite closure for IE ∪ IR. act rewrite closure can be interpreted as a speciali...
Ashish Tiwari
PODS
2007
ACM
104views Database» more  PODS 2007»
16 years 1 months ago
XML transformation by tree-walking transducers with invisible pebbles
The pebble tree automaton and the pebble tree transducer are enhanced by additionally allowing an unbounded number of `invisible' pebbles (as opposed to the usual `visible�...
Joost Engelfriet, Hendrik Jan Hoogeboom, Bart Samw...
ICALP
2010
Springer
15 years 6 months ago
Automata for Coalgebras: An Approach Using Predicate Liftings
Universal Coalgebra provides the notion of a coalgebra as the natural mathematical generalization of state-based evolving systems such as (infinite) words, trees, and transition s...
Gaëlle Fontaine, Raul Andres Leal, Yde Venema
FORTE
2004
15 years 2 months ago
Witness and Counterexample Automata for ACTL
Witnesses and counterexamples produced by model checkers provide a very useful source of diagnostic information. They are usually returned in the form of a single computation path ...
Robert Meolic, Alessandro Fantechi, Stefania Gnesi