Results 11 to 20 of about 3,203 (298)

Transitive closure and transitive reduction in bidirected graphs [PDF]

open access: yesCzechoslovak Mathematical Journal, 2019
In a bidirected graph an edge has a direction at each end, so bidirected graphs generalize directed graphs. We generalize the definitions of transitive closure and transitive reduction from directed graphs to bidirected graphs by introducing new notions of bipath and bicircuit that generalize directed paths and cycles.
Bessouf, Ouahiba   +2 more
openaire   +5 more sources

Transitive closure of interval-valued relations [PDF]

open access: yes2008 3rd International Conference on Intelligent System and Knowledge Engineering, 2008
Peer ...
González del Campo, Ramón   +2 more
core   +7 more sources

Antifoundation and Transitive Closure in the System of Zermelo [PDF]

open access: yesNotre Dame Journal of Formal Logic, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Esser, Olivier, Hinnion, Roland
openaire   +4 more sources

The dynamic complexity of transitive closure is in DynTC0 [PDF]

open access: yesTheoretical Computer Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hesse, William
openaire   +3 more sources

Causal Pathway Extraction from Web-Board Documents

open access: yesApplied Sciences, 2021
This research aim is to extract causal pathways, particularly disease causal pathways, through cause-effect relation (CErel) extraction from web-board documents.
Chaveevan Pechsiri, Rapepun Piriyakul
doaj   +1 more source

buTCS: An Optimized Algorithm for Estimating the Size of Transitive Closure

open access: yesIEEE Access, 2021
Given a directed graph and a node $v$ , the transitive closure (TC) of $v$ is the set of nodes that $v$ can reach in the graph. TC size is very important in many applications but the cost of TC size computation is high in both time and space, which ...
Xiaozhe Li   +3 more
doaj   +1 more source

Model Checking Synchronized Products of Infinite Transition Systems [PDF]

open access: yesLogical Methods in Computer Science, 2007
Formal verification using the model checking paradigm has to deal with two aspects: The system models are structured, often as products of components, and the specification logic has to be expressive enough to allow the formalization of reachability ...
Stefan Wöhrle, Wolfgang Thomas
doaj   +1 more source

Complements and transitive closures

open access: yesDiscrete Mathematics, 1972
AbstractThe complement of the transitive closure of the complement of a transitive relation is transitive. We prove this fact in three ways, analyze the underlying structure and consider various refinement's and applications.
Ronald L. Graham   +2 more
openaire   +2 more sources

Parallel transitive closure algorithm [PDF]

open access: yesJournal of the Brazilian Computer Society, 2012
Abstract Using the BSP/CGM model, with $$p$$ processors, where $$p \ll n$$ , we present a parallel algorithm to compute the transitive closure of a digraph $$D$$ with $$n$$ vertices and $$m$$ edges.
C. E. R. Alves   +4 more
openaire   +1 more source

Dual digraphs of finite semidistributive lattices

open access: yesCubo, 2022
Dual digraphs of finite join-semidistributive lattices, meet-semidistributive lattices and semidistributive lattices are characterised. The vertices of the dual digraphs are maximal disjoint filter-ideal pairs of the lattice.
Andrew Craig   +2 more
doaj   +1 more source

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