Results 1 to 10 of about 7,725 (204)

Hyper-Minimization for Deterministic Weighted Tree Automata [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2014
Hyper-minimization is a state reduction technique that allows a finite change in the semantics. The theory for hyper-minimization of deterministic weighted tree automata is provided.
Andreas Maletti, Daniel Quernheim
doaj   +4 more sources

A Nivat Theorem for Weighted Alternating Automata over Commutative Semirings [PDF]

open access: yesLogical Methods in Computer Science, 2023
This paper connects the classes of weighted alternating finite automata (WAFA), weighted finite tree automata (WFTA), and polynomial automata (PA). First, we investigate the use of trees in the run semantics for weighted alternating automata and prove ...
Gustav Grabolle
doaj   +1 more source

Improved N-Best Extraction with an Evaluation on Language Data

open access: yesComputational Linguistics, 2022
We show that a previously proposed algorithm for the N-best trees problem can be made more efficient by changing how it arranges and explores the search space.
Johanna Björklund   +2 more
doaj   +1 more source

A general approach to solving problems on graphs by collective automata

open access: yesТруды Института системного программирования РАН, 2018
We propose a general method to solve graph problems by a set of automata (computational agents) located in vertices of undirected ordered connected rooted graph and communicating by passing messages along graph edges.
I. B. Burdonov, A. S. Kossatchev
doaj   +1 more source

Isomorphisms of scattered automatic linear orders [PDF]

open access: yes, 2012
We prove that the isomorphism of scattered tree automatic linear orders as well as the existence of automorphisms of scattered word automatic linear orders are undecidable.
Kuske, Dietrich
core   +4 more sources

Modified Three-Step Search Block Matching Motion Estimation and Weighted Finite Automata based Fractal Video Compression

open access: yesInternational Journal of Interactive Multimedia and Artificial Intelligence, 2017
The major challenge with fractal image/video coding technique is that, it requires more encoding time. Therefore, how to reduce the encoding time is the research component remains in the fractal coding.
Shailesh Kamble   +2 more
doaj   +1 more source

Weighted Logics for Nested Words and Algebraic Formal Power Series [PDF]

open access: yes, 2010
Nested words, a model for recursive programs proposed by Alur and Madhusudan, have recently gained much interest. In this paper we introduce quantitative extensions and study nested word series which assign to nested words elements of a semiring. We show
Mathissen, Christian
core   +1 more source

Comparator automata in quantitative verification [PDF]

open access: yes, 2018
The notion of comparison between system runs is fundamental in formal verification. This concept is implicitly present in the verification of qualitative systems, and is more pronounced in the verification of quantitative systems.
Bansal, Suguman   +2 more
core   +3 more sources

Applications of Automata and Graphs: Labeling-Operators in Hilbert Space I [PDF]

open access: yes, 2008
We show that certain representations of graphs by operators on Hilbert space have uses in signal processing and in symbolic dynamics. Our main result is that graphs built on automata have fractal characteristics.
Fannes M.   +11 more
core   +2 more sources

Reachability of Consensus and Synchronizing Automata [PDF]

open access: yes, 2015
We consider the problem of determining the existence of a sequence of matrices driving a discrete-time consensus system to consensus. We transform this problem into one of the existence of a product of the transition (stochastic) matrices that has a ...
Chevalier, Pierre-Yves   +2 more
core   +1 more source

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