Results 21 to 30 of about 186,232 (291)

Edge-Preserving Stereo Matching Using Minimum Spanning Tree

open access: yesIEEE Access, 2019
Despite that the accuracy and efficiency of stereo matching technology have significantly improved in the past decades, the issue of edge-blurring remains a challenge to most of the existing approaches.
Congxuan Zhang   +5 more
doaj   +1 more source

Minimum spanning tree analysis for epilepsy magnetoencephalography (MEG) data

open access: yesExploration of Neuroprotective Therapy, 2023
Aim: Recently, brain network research is actively conducted through the application of graph theory. However, comparison between brain networks is subject to bias issues due to topological characteristics and heterogeneity across subjects.
Sunhan Shin, Chun Kee Chung, Jaehee Kim
doaj   +1 more source

Greedy Randomized Adaptive Search and Variable Neighbourhood Search for the minimum labelling spanning tree problem [PDF]

open access: yes, 2009
This paper studies heuristics for the minimum labelling spanning tree (MLST) problem. The purpose is to find a spanning tree using edges that are as similar as possible.
Avis   +28 more
core   +1 more source

The Spanning Tree of a Divisible Multiple Graph

open access: yesМоделирование и анализ информационных систем, 2018
In this paper, we study undirected multiple graphs of any natural multiplicity k > 1. There are edges of three types: ordinary edges, multiple edges and multi-edges.
Alexander V. Smirnov
doaj   +1 more source

Proximity Drawings of High-Degree Trees [PDF]

open access: yes, 2010
A drawing of a given (abstract) tree that is a minimum spanning tree of the vertex set is considered aesthetically pleasing. However, such a drawing can only exist if the tree has maximum degree at most 6. What can be said for trees of higher degree?
Barát J.   +5 more
core   +1 more source

Spanning trees with small diameters

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
A spanning tree with small diameter of a graph has many applications. In this paper we first make the following conjecture and show that the condition is best possible if it is true. If a connected graph satisfies , then has a spanning tree with diameter
Mikio Kano, Hajime Matsumura
doaj   +1 more source

Clustering of online learning resources via minimum spanning tree [PDF]

open access: yesAAOU Journal, 2016
Purpose - The quick growth of web-based and mobile e-learning applications such as massive open online courses have created a large volume of online learning resources.
Qingyuan Wu   +4 more
doaj   +1 more source

Balanced Partition of Minimum Spanning Trees [PDF]

open access: yesInternational Journal of Computational Geometry & Applications, 2002
To better handle situations where additional resources are available to carry out a task, many problems from the manufacturing industry involve dividing a task into a number of smaller tasks, while optimizing a specific objective function. In this paper we consider the problem of partitioning a given set [Formula: see text] of n points in the plane ...
Andersson, M.   +3 more
openaire   +3 more sources

Extensions of the minimum labelling spanning tree problem

open access: yesJournal of Telecommunications and Information Technology, 2006
In this paper we propose some extensions of the minimum labelling spanning tree problem. The main focus is on the minimum labelling Steiner tree problem: given a graph G with a color (label) assigned to each edge, and a subset Q of the nodes of G (basic
Raffaele Cerulli   +2 more
doaj   +1 more source

Minimum-Spanning-Tree-Based Time Delay Estimation Robust to Outliers

open access: yesIEEE Access, 2023
In this paper, we present a novel approach to estimating multiple time delays (TDs) in sensor arrays that is robust to outliers of TD measurements. These measurements are typically obtained from the peak of the cross correlation of two sensor signals but
Kouei Yamaoka   +3 more
doaj   +1 more source

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