Results 41 to 50 of about 1,576 (262)

Bimorphisms and synchronous grammars

open access: yesJournal of Language Modelling, 2014
We tend to think of the study of language as proceeding by characterizing the strings and structures of a language, and we think of natural language processing as using those structures to build systems of utility in manipulating the language.
Stuart M. Shieber
doaj   +1 more source

Automata with Nested Pebbles Capture First-Order Logic with Transitive Closure [PDF]

open access: yesLogical Methods in Computer Science, 2007
String languages recognizable in (deterministic) log-space are characterized either by two-way (deterministic) multi-head automata, or following Immerman, by first-order logic with (deterministic) transitive closure.
Joost Engelfriet, Hendrik Jan Hoogeboom
doaj   +1 more source

On the Expressive Power of Higher-Order Pushdown Systems [PDF]

open access: yesLogical Methods in Computer Science, 2020
We show that deterministic collapsible pushdown automata of second order can recognize a language that is not recognizable by any deterministic higher-order pushdown automaton (without collapse) of any order.
Paweł Parys
doaj   +1 more source

TREE AUTOMATA WITH GLOBAL CONSTRAINTS [PDF]

open access: yesInternational Journal of Foundations of Computer Science, 2008
We define tree automata with global equality and disequality constraints (TAGED). TAGEDs can test (dis)equalities between subtrees which may be arbitrarily faraway. In particular, they are equipped with an equality relation and a disequality relation on states, so that whenever two subtrees t and t′ evaluate (in an accepting run) to two states which ...
Emmanuel Filiot   +2 more
openaire   +6 more sources

Random Generation of Nondeterministic Finite-State Tree Automata [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
Algorithms for (nondeterministic) finite-state tree automata (FTAs) are often tested on random FTAs, in which all internal transitions are equiprobable.
Thomas Hanneforth   +2 more
doaj   +1 more source

Interpreting the effects of DNA polymerase variants at the structural level

open access: yesMolecular Oncology, EarlyView.
Using MAVISp and molecular dynamics simulations, we analyzed over 60 000 missense variants in POLE and POLD1 from ClinVar, COSMIC, cBioPortal, and saturation mutagenesis. Identified mechanistic indicators, including stability, binding, and long‐range, enable structural interpretation, providing ACMG‐like evidence for possible reclassification of VUS ...
Matteo Arnaudi   +7 more
wiley   +1 more source

On the power of tree-walking automata [PDF]

open access: yesInformation and Computation, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Frank Neven, Thomas Schwentick
openaire   +2 more sources

Refinement of amino‐acid conformation vs. difference density maps in time‐resolved serial femtosecond crystallography data analysis

open access: yesFEBS Open Bio, EarlyView.
The dFoCC pipeline starts with observed DED and resting‐state coordinates, which are then used to generate a library of triggered states. Correlation analysis of the calculated DED features of each candidate vs observed DED permits quantitative evaluation of candidate structural quality.
Meng Iao Fong   +3 more
wiley   +1 more source

Logics for Unranked Trees: An Overview [PDF]

open access: yesLogical Methods in Computer Science, 2006
Labeled unranked trees are used as a model of XML documents, and logical languages for them have been studied actively over the past several years. Such logics have different purposes: some are better suited for extracting data, some for expressing ...
Leonid Libkin
doaj   +1 more source

Tree Automata and Tree Grammars

open access: yesCoRR, 2015
Lecture notes on tree language theory, in particular recognizable tree languages and finite state tree transformations.
openaire   +2 more sources

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