Results 31 to 40 of about 227,714 (275)

Isolation Forest Based on Minimal Spanning Tree

open access: yesIEEE Access, 2022
Detecting anomalies in data sets has been one of the most studied issues in modern data analysis. Therefore, there is a plethora of applications in a very wide range of fields of science and technology.
Lukasz Galka   +2 more
doaj   +1 more source

On the Longest Spanning Tree with Neighborhoods [PDF]

open access: yesDiscrete Mathematics, Algorithms and Applications, 2018
We study a maximization problem for geometric network design. Given a set of [Formula: see text] compact neighborhoods in [Formula: see text], select a point in each neighborhood, so that the longest spanning tree on these points (as vertices) has maximum length. Here, we give an approximation algorithm with ratio [Formula: see text], which represents
Ke Chen, Adrian Dumitrescu
openaire   +4 more sources

On Minimum Average Stretch Spanning Trees in Polygonal 2-trees [PDF]

open access: yes, 2014
A spanning tree of an unweighted graph is a minimum average stretch spanning tree if it minimizes the ratio of sum of the distances in the tree between the end vertices of the graph edges and the number of graph edges.
Narayanaswamy, N. S., Ramakrishna, G.
core   +1 more source

On spanning tree congestion

open access: yesDiscrete Mathematics, 2009
AbstractWe prove that every connected graph G of order n has a spanning tree T such that for every edge e of T the edge cut defined in G by the vertex sets of the two components of T−e contains at most n32 edges. This result solves a problem posed by Ostrovskii (M.I. Ostrovskii, Minimal congestion trees, Discrete Math. 285 (2004) 219–226).
Friedrich Regen   +2 more
openaire   +2 more sources

The number of spanning trees of a graph [PDF]

open access: yesJournal of Inequalities and Applications, 2013
Abstract Let G be a simple connected graph of order n, m edges, maximum degree Δ 1 and minimum degree δ. Li et al. (Appl. Math. Lett. 23:286-290, 2010) gave an upper bound on number of spanning trees of a graph in terms of n, m,
Das, Kinkar C.   +2 more
openaire   +4 more sources

Implementasi VLAN dan Spanning Tree Protocol Menggunakan GNS 3 dan Pengujian Sistem Keamanannya

open access: yesKhazanah Informatika, 2018
Pada saat ini, jaringan komputer telah banyak digunakan dalam berbagai macam bidang dan telah mengalami perkembangan yang sangat pesat. Hampir setiap perusahaan atau organisasi menggunakan jaringan komputer.
Wahyu Saputra, Fajar Suryawan
doaj   +1 more source

Enumeration for spanning trees and forests of join graphs based on the combinatorial decomposition

open access: yesElectronic Journal of Graph Theory and Applications, 2016
This paper discusses the enumeration for rooted spanning trees and forests of the labelled join graphs $K_m+H_n$ and $K_m+K_{n,p}$, where $H_n$ is a graph with $n$ isolated vertices. 
Sung Sik U
doaj   +1 more source

Ramsey Spanning Trees and Their Applications [PDF]

open access: yesACM Transactions on Algorithms, 2018
The metric Ramsey problem asks for the largest subset S of a metric space that can be embedded into an ultrametric (more generally into a Hilbert space) with a given distortion. Study of this problem was motivated as a non-linear version of Dvoretzky theorem.
Michael Elkin   +4 more
openaire   +4 more sources

Streaming Complexity of Spanning Tree Computation [PDF]

open access: yes, 2020
The semi-streaming model is a variant of the streaming model frequently used for the computation of graph problems. It allows the edges of an n-node input graph to be read sequentially in p passes using Õ(n) space.
  +3 more
core   +2 more sources

Beyond top‐N accuracy indicator: a comprehensive evaluation indicator of CNN models in image classification

open access: yesIET Computer Vision, 2020
Nowadays, a large number of deep convolutional neural network (CNN) models are applied to image classification tasks. However, the authors find that the most widely used evaluation indicator, the Top‐N Accuracy indicator, cannot discriminate these models
Yuntao Liu, Yong Dou, Peng Qiao
doaj   +1 more source

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