Results 21 to 30 of about 286,038 (288)

A machine learning approach for predicting human shortest path task performance

open access: yesVisual Informatics, 2022
Finding a shortest path for a given pair of vertices in a graph drawing is one of the fundamental tasks for qualitative evaluation of graph drawings.
Shijun Cai   +4 more
doaj   +1 more source

Two-degree-of-freedom manipulator path planning based on zeroing neural network [PDF]

open access: yesMATEC Web of Conferences, 2020
In this paper, the shortest path problem of manipulator path planning is transformed into a linear programming problem, and solved by zeroing neural network (ZNN).
Li Yan, Liu Keping
doaj   +1 more source

Speed-up Technique in Time-Varying Shortest Path Problems with Arbitrary Waiting Times [PDF]

open access: yesمدیریت مهندسی و رایانش نرم, 2020
Network flow problems are considered a vital branch of operations research. These problems are classified into static and time-varying classes. Network flow problems are time-varying in real application, because any flow must take a given amount of time ...
Gholamhasan Shirdel, Hasan Rezapour
doaj   +1 more source

ON ASSOCIATIVE SHORTEST PATH PROBLEMS [PDF]

open access: yesBulletin of informatics and cybernetics, 1997
Summary: We consider a wide class of shortest path problems in acyclic digraphs. In the problems, the length of a path is defined by using an associative binary operation. We derive recursive equations in dynamic programming for the problems, which involve additive, multiplicative, multiplicative-additive, minimum and fractional shortest path problems.
openaire   +2 more sources

The Capacity Expansion Path Problem in Networks

open access: yesJournal of Applied Mathematics, 2013
This paper considers the general capacity expansion path problem (GCEP) for the telecommunication operators. We investigate the polynomial equivalence between the GCEP problem and the constrained shortest path problem (CSP) and present a pseudopolynomial
Jianping Li, Juanping Zhu
doaj   +1 more source

Reachability and Shortest Paths in the Broadcast CONGEST Model [PDF]

open access: yes, 2019
In this paper we study the time complexity of the single-source reachability problem and the single-source shortest path problem for directed unweighted graphs in the Broadcast CONGEST model.
Chechik, Shiri, Mukhtar, Doron
core   +2 more sources

Shortest Reconfiguration of Perfect Matchings via Alternating Cycles [PDF]

open access: yes, 2019
Motivated by adjacency in perfect matching polytopes, we study the shortest reconfiguration problem of perfect matchings via alternating cycles. Namely, we want to find a shortest sequence of perfect matchings which transforms one given perfect matching ...
Ito, Takehiro   +4 more
core   +2 more sources

Neutrosophic Shortest Path Problem (NSPP) in a Directed Multigraph [PDF]

open access: yesNeutrosophic Sets and Systems, 2019
One of the important non-linear data structures in Computer Science is graph. Most of the real life network, be it a road transportation network, or airlines network or a communication network etc., cannot be exactly transformed into a graph model, but ...
Siddhartha Sankar Biswas
doaj   +1 more source

Rerouting shortest paths in planar graphs [PDF]

open access: yes, 2012
A rerouting sequence is a sequence of shortest st-paths such that consecutive paths differ in one vertex. We study the the Shortest Path Rerouting Problem, which asks, given two shortest st-paths P and Q in a graph G, whether a rerouting sequence exists ...
Bonsma, Paul
core   +3 more sources

“rsppfp”: An R package for the shortest path problem with forbidden paths

open access: yesSoftwareX, 2019
The Shortest Path Problem with Forbidden Paths (SPPFP) is a variant of the original shortest path problem, where the constraints come from a set of forbidden arc sequences that cannot be part of any feasible solution.
Melina Vidoni, Aldo Vecchietti
doaj   +1 more source

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