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LATA
2009
Springer
14 years 6 months ago
On Extended Regular Expressions
d abstract) Benjamin Carle, Paliath Narendran and Colin Scheriff Dept. of Computer Science University at Albany–SUNY Albany, NY 12222 June 19, 2007 In this paper we extend the ...
Benjamin Carle, Paliath Narendran
LATA
2009
Springer
14 years 6 months ago
Rigid Tree Automata
We introduce the class of Rigid Tree Automata (RTA), an extension of standard bottom-up automata on ranked trees with distinguished states called rigid. Rigid states define a rest...
Florent Jacquemard, Francis Klay, Camille Vacher
LATA
2009
Springer
14 years 6 months ago
A Series of Run-Rich Strings
We present a new series of run-rich strings, and give a new lower bound 0.94457567 of the maximum number of runs in a string. We also introduce the general conjecture about a asymp...
Wataru Matsubara, Kazuhiko Kusano, Hideo Bannai, A...
LATA
2010
Springer
14 years 6 months ago
String Extension Learning Using Lattices
Anna Kasprzik, Timo Kötzing
LATA
2010
Springer
14 years 6 months ago
Using Sums-of-Products for Non-standard Reasoning
Abstract. An important portion of the current research in Description Logics is devoted to the expansion of the reasoning services and the developement of algorithms that can adequ...
Rafael Peñaloza
LATA
2010
Springer
14 years 6 months ago
Choosing Word Occurrences for the Smallest Grammar Problem
The smallest grammar problem - namely, finding a smallest context-free grammar that generates exactly one sequence - is of practical and theoretical importance in fields such as ...
Rafael Carrascosa, François Coste, Matthias...
LATA
2010
Springer
14 years 6 months ago
Three Learnable Models for the Description of Language
Abstract. Learnability is a vital property of formal grammars: representation classes should be defined in such a way that they are learnable. One way to build learnable represent...
Alexander Clark
LATA
2010
Springer
14 years 8 months ago
Untestable Properties Expressible with Four First-Order Quantifiers
Abstract. In property testing, the goal is to distinguish between structures that have some desired property and those that are far from having the property, after examining only a...
Charles Jordan and Thomas Zeugmann