Results 21 to 30 of about 832,460 (272)

On sampling nodes in a network [PDF]

open access: yes, 2016
Random walk is an important tool in many graph mining applications including estimating graph parameters, sampling portions of the graph, and extracting dense communities.
CHIERICHETTI, FLAVIO   +4 more
core   +1 more source

A survey of graph-based algorithms for discovering business processes

open access: yesIJAIN (International Journal of Advances in Intelligent Informatics), 2019
Algorithms of process discovery help analysts to understand business processes and problems in a system by creating a process model based on a log of the system. There are existing algorithms of process discovery, namely graph-based.
Riyanarto Sarno, Kelly Rossa Sungkono
doaj   +1 more source

Graph Extremities Defined by Search Algorithms

open access: yesAlgorithms, 2010
Graph search algorithms have exploited graph extremities, such as the leaves of a tree and the simplicial vertices of a chordal graph. Recently, several well-known graph search algorithms have been collectively expressed as two generic algorithms called ...
Jean-Paul Bordat   +3 more
doaj   +1 more source

A graph rewriting programming language for graph drawing [PDF]

open access: yes, 1998
This paper describes Grrr, a prototype visual graph drawing tool. Previously there were no visual languages for programming graph drawing algorithms despite the inherently visual nature of the process.
Rodgers, Peter
core   +1 more source

Achieving Good Angular Resolution in 3D Arc Diagrams [PDF]

open access: yes, 2013
We study a three-dimensional analogue to the well-known graph visualization approach known as arc diagrams. We provide several algorithms that achieve good angular resolution for 3D arc diagrams, even for cases when the arcs must project to a given 2D ...
A. Cimikowski   +17 more
core   +2 more sources

Average Sensitivity of Graph Algorithms

open access: yes, 2020
In modern applications of graphs algorithms, where the graphs of interest are large and dynamic, it is unrealistic to assume that an input representation contains the full information of a graph being studied.
Varma, Nithin, Yoshida, Yuichi
core   +1 more source

Undergraduate Students’ Solutions of Modeling Problems in Algorithmic Graph Theory

open access: yesMathematics, 2019
Graphs can be considered as useful mathematical models. Graph algorithms are a common part of undergraduate courses in discrete mathematics. Even though they have been successfully implemented in secondary curricula, little research has been dedicated to
Janka Medová   +3 more
doaj   +1 more source

Planar Induced Subgraphs of Sparse Graphs [PDF]

open access: yes, 2014
We show that every graph has an induced pseudoforest of at least $n-m/4.5$ vertices, an induced partial 2-tree of at least $n-m/5$ vertices, and an induced planar subgraph of at least $n-m/5.2174$ vertices. These results are constructive, implying linear-
A. Lubotzky   +6 more
core   +1 more source

Leanness Computation: Small Values and Special Graph Classes [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science
Let u and v be vertices in a connected graph G = (V, E). For any integer k such that 0 ≤ k ≤ dG (u, v), the k-slice Sk (u, v) contains all vertices x on a shortest uv-path such that dG (u, x) = k.
David Coudert   +2 more
doaj   +1 more source

Efficient Processing of All Nearest Neighbor Queries in Dynamic Road Networks

open access: yesMathematics, 2021
The increasing trend of GPS-enabled smartphones has led to the tremendous usage of Location-Based Service applications. In the past few years, a significant amount of studies have been conducted to process All nearest neighbor (ANN) queries. An ANN query
Aavash Bhandari   +4 more
doaj   +1 more source

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