Results 11 to 20 of about 117,198 (266)

Closure properties of constraints

open access: yesJournal of the ACM, 1997
Many combinatorial search problems can be expressed as “constraint satisfaction problems” and this class of problems is known to be NP-complete in general. In this paper, we investigate the subclasses that arise from restricting the possible constraint types.
Jeavons, P., Cohen, D., Gyssens, Marc
openaire   +3 more sources

Cable Ties: Poor Man's Top Closure System

open access: yesIndian Journal of Plastic Surgery, 2023
Scalp electrical burns unsuitable for primary closure after debridement have traditionally been treated by modalities that cause significant morbidity and are aesthetically inferior to tension-free primary wound closure.
Aditya Narayan Choudhary, Sanjeev Kumar
doaj   +1 more source

Expressiveness and Closure Properties for Quantitative Languages [PDF]

open access: yesLogical Methods in Computer Science, 2010
Weighted automata are nondeterministic automata with numerical weights on transitions. They can define quantitative languages~$L$ that assign to each word~$w$ a real number~$L(w)$.
Krishnendu Chatterjee   +2 more
doaj   +1 more source

Neutrosophic Topology [PDF]

open access: yesNeutrosophic Sets and Systems, 2016
In this paper, we redefine the neutrosophic set operations and, by using them, we introduce neutrosophic topology and investigate some related properties such as neutrosophic closure, neutrosophic closure, neutrosophic interior, neutrosophic exterior ...
Serkan Karatas, Cemil Kuru
doaj   +1 more source

Closure Properties of Coalgebra Automata [PDF]

open access: yes20th Annual IEEE Symposium on Logic in Computer Science (LICS' 05), 2006
We generalize some of the central results in automata theory to the abstraction level of coalgebras. In particular, we show that for any standard, weak pullback preserving functor F, the class of recognizable languages of F -coalgebras is closed under taking unions, intersections and projections.
Kupke, C.A., Venema, Y.
openaire   +2 more sources

Some Variants of Strong Normality in Closure Spaces Generated via Relations

open access: yesJournal of Mathematics, 2021
In this paper, some variants of strongly normal closure spaces obtained by using binary relation are introduced, and examples in support of existence of the variants are provided by using graphs.
Ria Gupta, Ananga Kumar Das
doaj   +1 more source

Transitive Closure of Interval-valued Fuzzy Relations [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2013
In this paper are introduced some concepts of interval-valued fuzzy relations and some of their properties: reflexivity, symmetry, T-transitivity, composition and local reflexivity.
Ramón González-del-Campo   +2 more
doaj   +1 more source

On Operations over Language Families [PDF]

open access: yesComputer Science Journal of Moldova, 2019
Let $O$ and $\F$ be an operation and a language family, respectively. So far, in terms of closure properties, the classical language theory has only investigated whether $O(\F) \subseteq \F$, where $O(\F)$ is the family resulting from $O$ applied to all ...
Alexander Meduna   +3 more
doaj  

A novel topological structure based on closure filter [PDF]

open access: yesMathematics and Computational Sciences
This research explores a closure Filter structure which generates a novel closure Filter topology and defines a new operator that satisfies Kuratowski's closure axioms.
Raman Diwakar, Ramu Alagar
doaj   +1 more source

Percutaneous closure of patent ductus arteriosus in children: Immediate and short-term changes in left ventricular systolic and diastolic function

open access: yesAnnals of Pediatric Cardiology, 2011
Objective: To evaluate the effect of percutaneous closure of patent ductus arteriosus (PDA) on left ventricular (LV) systolic and diastolic function in children.
Saurabh Kumar Gupta   +6 more
doaj   +1 more source

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