Results 11 to 20 of about 48,609 (342)

Crisp-determinization of weighted tree automata over strong bimonoids [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2021
We consider weighted tree automata (wta) over strong bimonoids and their initial algebra semantics and their run semantics. There are wta for which these semantics are different; however, for bottom-up deterministic wta and for wta over semirings, the ...
Zoltán Fülöp   +2 more
doaj   +1 more source

Locality and Centrality: The Variety ZG [PDF]

open access: yesLogical Methods in Computer Science, 2023
We study the variety ZG of monoids where the elements that belong to a group are central, i.e., commute with all other elements. We show that ZG is local, that is, the semidirect product ZG * D of ZG by definite semigroups is equal to LZG, the variety of
Antoine Amarilli, Charles Paperman
doaj   +1 more source

A model of actors and grey failures [PDF]

open access: yesLogical Methods in Computer Science, 2023
Existing models for the analysis of concurrent processes tend to focus on fail-stop failures, where processes are either working or permanently stopped, and their state (working/stopped) is known.
Laura Bocchi   +3 more
doaj   +1 more source

Separation for dot-depth two [PDF]

open access: yesLogical Methods in Computer Science, 2021
The dot-depth hierarchy of Brzozowski and Cohen classifies the star-free languages of finite words. By a theorem of McNaughton and Papert, these are also the first-order definable languages.
Thomas Place, Marc Zeitoun
doaj   +1 more source

Automata and Formal Languages for Next Generation Sequencing Data

open access: diamondElectronic Proceedings in Theoretical Computer Science, 2017
Paola Bonizzoni, Gianluca Della Vedova
openaire   +2 more sources

From Automata to Multiautomata via Theory of Hypercompositional Structures

open access: yesMathematics, 2021
In this paper, we study two important problems related to quasi-multiautomata: the complicated nature of verification of the GMAC condition for systems of quasi-multiautomata, and the fact that the nature of quasi-multiautomata has deviated from the ...
Štěpán Křehlík   +2 more
doaj   +1 more source

Transfinite Lyndon words [PDF]

open access: yesLogical Methods in Computer Science, 2020
In this paper, we extend the notion of Lyndon word to transfinite words. We prove two main results. We first show that, given a transfinite word, there exists a unique factorization in Lyndon words that are densely non-increasing, a relaxation of the ...
Olivier Carton, Luc Boasson
doaj   +1 more source

Resynchronized Uniformization and Definability Problems for Rational Relations [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2023
Regular synchronization languages can be used to define rational relations of finite words, and to characterize subclasses of rational relations, like automatic or recognizable relations.
Christof Löding, Sarah Winter
doaj   +1 more source

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