نتایج جستجو برای: covering array

تعداد نتایج: 184757  

2005
Charles J. Colbourn Gary L. Mullen Dennis Shasha George B. Sherwood Joseph L. Yucas

A covering array CA(N ; t, k, v) is an N × k array such that every N × t sub-array contains all t-tuples from v symbols at least once, where t is the strength of the array. Covering arrays are used to generate software test suites to cover all t-sets of component interactions. The particular case when t = 2 (pairwise coverage) has been extensively studied, both to develop combinatorial construc...

Journal: :The Journal of the Acoustical Society of America 2006
Olga Umnova Keith Attenborough Chris M Linton

The acoustic transmission loss of a finite periodic array of long rigid cylinders, without and with porous absorbent covering, is studied both theoretically and in the laboratory. A multiple scattering model is extended to allow for the covering and its acoustical properties are described by a single parameter semi-empirical model. Data from laboratory measurements and numerical results are fou...

Journal: :Discrete Mathematics 2012
Jason R. Lobb Charles J. Colbourn Peter Danziger Brett Stevens José Torres-Jiménez

A cover starter is a single vector that yields a covering array under the actions of groups on both the columns and the symbols of the starter. The existence of this compact representation of covering arrays facilitates effective exhaustive and heuristic search. When the group action on symbols fixes a small number f of symbols, such cover starters lead to covering arrays that embed covering ar...

Journal: :Quality and Reliability Engineering International 2017

Journal: :Soft Computing 2021

Today, there are a lot of useful algorithms for covering array (CA) generation, one the branches combinatorial testing. The major CA challenge is generation an with minimum number test cases (efficiency) in appropriate run-time (performance), large systems. strategies classified into several categories: computational and meta-heuristic, to name most important ones. Generally, have high performa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم 1391

in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...

Journal: :Probl. Inf. Transm. 2007
Victor Zinoviev Josep Rifà

In this paper from q-ary perfect codes new completely regular q-ary codes are constructed. In particular, two new ternary completely regular codes are obtained from ternary Golay [11, 6, 5] code. The first [11, 5, 6] code with covering radius ρ = 4 coincides with the dual Golay code and its intersection array is (22, 20, 18, 2, 1; 1, 2, 9, 20, 22) . The second [10, 5, 5] code, with covering rad...

Journal: :Discrete Mathematics 2008
Myra B. Cohen Charles J. Colbourn Alan C. H. Ling

A covering array CA(N ; t, k, v) is an N × k array such that every N × t sub-array contains all t-tuples from v symbols at least once, where t is the strength of the array. One application of these objects is to generate software test suites to cover all t-sets of component interactions. Methods for construction of covering arrays for software testing have focused on two main areas. The first i...

2015
Carlos Lara-Alvarez Himer Avila-George

Software testing is a critical component of modern software development. For this reason, it has been one of the most active research topics for several years, resulting in many different algorithms, methodologies and tools. Combinatorial testing is one of the most important testing strategies. The test generation problem for combinatorial testing can be modeled as constructing a matrix which h...

Journal: :Discrete Applied Mathematics 2017
Yasmeen Akhtar Soumen Maity

Covering arrays are combinatorial objects that have been successfully applied in the design of test suites for testing systems such as software, circuits and networks, where failures can be caused by the interaction between their parameters. In this paper, we perform a new generalization of covering arrays called covering arrays on 3-uniform hypergraphs. Let n, k be positive integers with k ≥ 3...

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