Results 21 to 30 of about 19,622 (256)

Tree algebra of sofic tree languages [PDF]

open access: yesRAIRO - Theoretical Informatics and Applications, 2014
We consider the languages of finite trees called tree-shift languages which are factorial extensible tree languages. These languages are sets of factors of sub-shifts of infinite trees. We give effective syntactic characterizations of two classes of regular tree-shift languages: the finite type tree languages and the tree languages which are almost of ...
Aubrun, Nathalie, Béal, Marie-Pierre
openaire   +2 more sources

Temporal Logic and Model Checking for Operator Precedence Languages [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
In the last decades much research effort has been devoted to extending the success of model checking from the traditional field of finite state machines and various versions of temporal logics to suitable subclasses of context-free languages and ...
Michele Chiari   +2 more
doaj   +1 more source

On the Separation Question for Tree Languages [PDF]

open access: yesTheory of Computing Systems, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Arnold, André   +2 more
openaire   +5 more sources

Unambiguous Tree Languages Are Topologically Harder Than Deterministic Ones [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2012
The paper gives an example of a tree language G that is recognised by an unambiguous parity automaton and is analytic-complete as a set in Cantor space.
Szczepan Hummel
doaj   +1 more source

Tree Planar Languages [PDF]

open access: yesSeventh IEEE International Conference on Data Mining Workshops (ICDMW 2007), 2007
sponsorship ...
openaire   +2 more sources

Regular Languages of Thin Trees [PDF]

open access: yesTheory of Computing Systems, 2015
For a fixed alphabet \(A\), a \textit{forest} is a ``mapping from its set of nodes \(\mathrm{dom}(t)\subset\omega^+\) into \(A\)''. It is additionally assumed that ``a forest is finitely branching: for every \(w\in\omega^\ast\) there are only finitely many nodes of the form \(wn\) for \(n\in {\mathbb N}\) in \(\mathrm{dom}(t)\)''; these nodes (of the ...
Bojanczyk, Mikolaj   +2 more
openaire   +4 more sources

Finite Automata with Generalized Acceptance Criteria [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2001
We examine the power of nondeterministic finite automata with acceptance of an input word defined by a leaf language, i.e., a condition on the sequence of leaves in the automaton's computation tree.
Timo Peichl, Heribert Vollmer
doaj   +3 more sources

On the Accuracy of Language Trees

open access: yesPLoS ONE, 2011
Historical linguistics aims at inferring the most likely language phylogenetic tree starting from information concerning the evolutionary relatedness of languages. The available information are typically lists of homologous (lexical, phonological, syntactic) features or characters for many different languages.
Simone Pompei   +2 more
openaire   +6 more sources

Analyzing Indo-European Language Similarities Using Document Vectors

open access: yesInformatics, 2023
The evaluation of similarities between natural languages often relies on prior knowledge of the languages being studied. We describe three methods for building phylogenetic trees and clustering languages without the use of language-specific information ...
Samuel R. Schrader, Eren Gultepe
doaj   +1 more source

Restrictions on tree adjoining languages [PDF]

open access: yesProceedings of the 17th international conference on Computational linguistics -, 1998
7 pages LaTeX + 5 eps ...
SATTA, GIORGIO, SCHULER W.
openaire   +4 more sources

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