Results 31 to 40 of about 113,837 (311)

3-Group Divisible Designs with 3 Groups and Block Size 5

open access: yesJournal of Mathematics, 2023
A 3-GDD (n, 2, k, λ1, λ2) was defined by combining the definitions of a group divisible design and a t-design. In this paper, we extend the definitions to 3 groups and block size 5, and we denote such GDD by 3-GDD (n, 3, 5, μ1, μ2).
Zebene Girma Tefera   +2 more
doaj   +1 more source

Balanced incomplete block designs: selected business-related applications and usage caveats [PDF]

open access: yesInnovative Marketing, 2016
Whenever respondents must rank-order a large number of items and/or the reliability of their rankings may be questionable, balanced incomplete block designs (BIBDs) represent a more effective means for doing so than either complete rankings or paired ...
David R. Rink
doaj   +1 more source

On the Classification of Splitting (v, u×c, λ) BIBDs

open access: yesCybernetics and Information Technologies, 2018
The (v, u×c, λ)-splitting balanced incomplete block designs correspond to c-splitting authentication codes. We classify splitting balanced incomplete block designs with definite parameters.
Zhelezova Stela
doaj   +1 more source

On block designs with repeated blocks

open access: yesDiscrete Mathematics, 1992
This paper is concerned with balanced incomplete block designs in which repeated blocks are allowed. If \({\mathcal D}\) is such a \((v,k,\lambda)\)- design (using the standard notation), let \(b^*\) denote the number of distinct blocks. Let \(BIBD(v,k,\lambda| b^*)\) denote the family of all such designs \({\mathcal D}\). Fixing the number of points \(
openaire   +1 more source

Blocking Sets in Designs with Block Size 4

open access: yesEuropean Journal of Combinatorics, 1990
Constructions are given which produce block designs with \(\lambda=1\) or 2 and \(k=4\) admitting a blocking set. The construction includes all admissible orders \(n\) with \(\lambda=1,2\) and \(k=4\) except 8 cases. There are four separate constructions, one for \(\lambda=1\) and \(n\equiv1\) mod 12, one for \(\lambda=1\) and \(n\equiv 4\) mod 12, one
Dean G. Hoffman   +2 more
openaire   +2 more sources

Designs for generalized linear models with random block effects via information matrix approximations

open access: yes, 2015
The selection of optimal designs for generalized linear mixed models is complicated by the fact that the Fisher information matrix, on which most optimality criteria depend, is computationally expensive to evaluate.
Waite, Timothy W   +3 more
core   +1 more source

Optimal orthogonal block designs for three-component symmetric general blending models in mixture experiment

open access: yesStatistical Theory and Related Fields
In mixture experiments, the observed response is determined by the relative proportions of the components, consequently rendering the experimental region a simplex.
Jiawei Bao, Yu Tang
doaj   +1 more source

Optimal Designs for Proportional Interference Models with Different Guarding Strategies

open access: yesMathematics, 2023
Interference models are commonly used in agriculture, industry, and other related fields. Optimal designs for these models are important topics in block designs.
Futao Zhang, Xiangshun Kong
doaj   +1 more source

Three-way cross designs for animal breeding experiments

open access: yesIndian Journal of Animal Sciences, 2016
Three-way crossbreeding has been a major tool for the development of present day commercial breeds. The hybrids thus produced are more stable and they exhibit individual as well as population buffering mechanism because of the broad genetic base.
MOHD HARUN   +3 more
doaj   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

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