Results 1 to 10 of about 1,445 (164)

The women made it work: fuzzy transitive closure of the results chain in a dengue prevention trial in Mexico [PDF]

open access: yesBMC Public Health, 2017
Background A modified theory of planned behaviour (acronym CASCADA) proposes that Conscious knowledge precedes a change in Attitude, which in turn precedes positive deviations from negative Subjective norms, intention to Change, perception of Agency to ...
Neil Andersson   +4 more
doaj   +2 more sources

A transitive closure algorithm [PDF]

open access: yesBIT Numerical Mathematics, 1970
An algorithm is given for computing the transitive closure of a directed graph in a time no greater thana1N1n+a2n2 for largen wherea1 anda2 are constants depending on the computer used to execute the algorithm,n is the number of nodes in the graph andN1 is the number of arcs (not counting those arcs which are part of a cycle and not counting those arcs
Paul Purdom
exaly   +3 more sources

Transitive Closures of Ternary Fuzzy Relations [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2021
Recently, we have introduced six types of composition of ternary fuzzy relations. These compositions are close in spirit to the composition of binary fuzzy relations.
Lemnaouar Zedam, Bernard De Baets
doaj   +3 more sources

Parallel Transitive Closure Algorithm for Heterogeneous Architecture [PDF]

open access: yesJisuanji gongcheng, 2021
The traditional method for obtaining the transitive closure of the graphs faces the large amount of calculation and long calculation time. In order to improve the computing speed of the transitive closure algorithm for dealing with large amounts of data,
XIAO Han, GUO Baoyun, LI Cailin, ZHOU Qinglei
doaj   +1 more source

Transitive-Closure Spanners [PDF]

open access: yesSIAM Journal on Computing, 2009
Given a directed graph G = (V,E) and an integer k>=1, a k-transitive-closure-spanner (k-TC-spanner) of G is a directed graph H = (V, E_H) that has (1) the same transitive-closure as G and (2) diameter at most k. These spanners were implicitly studied in access control, data structures, and property testing, and properties of these spanners have been
Arnab Bhattacharyya 0001   +4 more
openaire   +3 more sources

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

L-Recursion and a new Logic for Logarithmic Space [PDF]

open access: yesLogical Methods in Computer Science, 2013
We extend first-order logic with counting by a new operator that allows it to formalise a limited form of recursion which can be evaluated in logarithmic space.
Martin Grohe   +3 more
doaj   +1 more source

Reconstruction Method of Ocean Front Model Based on Fuzzy Cluster Analysis of Sound Speed Profile

open access: yesIEEE Access, 2021
Ocean fronts are mostly determined according to the horizontal temperature gradient, and various selection criteria may lead to different frontal zones. This study proposes a frontal zone delineation method based on sound speed profile.
Yuyao Liu   +5 more
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

Characterization of Transitivity in L-Tolerance Spaces by Convergence and Closure

open access: yesAxioms, 2021
We show that the category of quantale-valued tolerance spaces is isomorphic to a category of quantale-valued convergence spaces. We define suitable quantale-valued closure functions and use them to characterize transitivity axioms.
Gunther Jäger, T. M. G. Ahsanullah
doaj   +1 more source

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