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» Automata, Logic, and XML
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GECCO
2004
Springer
134views Optimization» more  GECCO 2004»
15 years 11 months ago
A New Universal Cellular Automaton Discovered by Evolutionary Algorithms
In Twenty Problems in the Theory of Cellular Automata, Stephen Wolfram asks “how common computational universality and undecidability [are] in cellular automata.” This papers p...
Emmanuel Sapin, Olivier Bailleux, Jean-Jacques Cha...
CSL
2007
Springer
15 years 10 months ago
MSO on the Infinite Binary Tree: Choice and Order
We give a new proof showing that it is not possible to define in monadic second-order logic (MSO) a choice function on the infinite binary tree. This result was first obtained by G...
Arnaud Carayol, Christof Löding
FOSSACS
2006
Springer
15 years 9 months ago
Propositional Dynamic Logic with Recursive Programs
We extend the propositional dynamic logic PDL of Fischer and Ladner with a restricted kind of recursive programs using the formalism of visibly pushdown automata (Alur, Madhusudan...
Christof Löding, Olivier Serre
WWW
2007
ACM
16 years 6 months ago
Preserving XML queries during schema evolution
In XML databases, new schema versions may be released as frequently as once every two weeks. This poster describes a taxonomy of changes for XML schema evolution. It examines the ...
Mirella Moura Moro, Susan Malaika, Lipyeow Lim
DEXAW
2006
IEEE
127views Database» more  DEXAW 2006»
16 years 7 days ago
History Checking of XML Data Streams
Besides being adopted as the new general data representation format for the Internet, XML is finding increasing acceptance as a native data exchange language. In order to fully e...
Alessandro Campi, Paola Spoletini