Results 81 to 90 of about 7,287,958 (273)

Regular binoid expressions and regular binoid languages

open access: yesTheoretical Computer Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Shuji Jimbo   +2 more
openaire   +2 more sources

Boundedness in languages of infinite words

open access: yes, 2017
We define a new class of languages of $\omega$-words, strictly extending $\omega$-regular languages. One way to present this new class is by a type of regular expressions.
Bojańczyk, Mikołaj, Colcombet, Thomas
core   +1 more source

Minimizing nfa's and regular expressions

open access: yesJournal of Computer and System Sciences, 2005
AbstractWe show inapproximability results concerning minimization of nondeterministic finite automata (nfa's) as well as of regular expressions relative to given nfa's, regular expressions or deterministic finite automata (dfa's).We show that it is impossible to efficiently minimize a given nfa or regular expression with n states, transitions ...
Gregor Gramlich, Georg Schnitger
openaire   +3 more sources

Tumor necrosis factor gene expression in regular hemodialysis patients

open access: yesSaudi Journal of Kidney Diseases and Transplantation, 2015
This study evaluates tumor necrosis factor (TNF)-alfa gene expression in patients with end-stage renal disease (ESRD) on regular hemodialysis as an expression of cardiovascular disease (CVD) risk even on a sub-clinical level and its relation to some of ...
Hemmat E El Haddad   +5 more
doaj   +1 more source

Particle motion and collisions around rotating regular black hole

open access: yes, 2014
The neutral particle motion around rotating regular black hole that was derived from the Ay\'{o}n-Beato-Garc\'{i}a black hole solution by the Newman-Janis algorithm in the preceding paper [Phys. Rev. D 89, 104017, (2014)] has been studied.
Abdujabbarov, Ahmadjon   +3 more
core   +1 more source

On the Expressive Power of Regular Expressions with Backreferences

open access: yes, 2023
A rewb is a regular expression extended with a feature called backreference. It is broadly known that backreference is a practical extension of regular expressions, and is supported by most modern regular expression engines, such as those in the standard libraries of Java, Python, and more.
Nogami, Taisei, Terauchi, Tachio
openaire   +4 more sources

Deafness mutation mining using regular expression based pattern matching

open access: yesBMC Medical Informatics and Decision Making, 2007
Background While keyword based queries of databases such as Pubmed are frequently of great utility, the ability to use regular expressions in place of a keyword can often improve the results output by such databases. Regular expressions can allow for the
Frenz Christopher M
doaj   +1 more source

Automated DNA Motif Discovery [PDF]

open access: yes, 2010
Ensembl's human non-coding and protein coding genes are used to automatically find DNA pattern motifs. The Backus-Naur form (BNF) grammar for regular expressions (RE) is used by genetic programming to ensure the generated strings are legal.
Graillet, Olivia Sanchez   +2 more
core   +2 more sources

New bounds for the max-$k$-cut and chromatic number of a graph

open access: yes, 2015
We consider several semidefinite programming relaxations for the max-$k$-cut problem, with increasing complexity. The optimal solution of the weakest presented semidefinite programming relaxation has a closed form expression that includes the largest ...
Sotirov, Renata, van Dam, Edwin R.
core   +2 more sources

A lexical database tool for quantitative phonological research

open access: yes, 1997
A lexical database tool tailored for phonological research is described. Database fields include transcriptions, glosses and hyperlinks to speech files.
Bird, Steven
core   +3 more sources

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