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Missing Data Imputation in Balanced Construction for Incomplete Block Designs

Mathematics
Observational data with massive sample sizes are often distributed on many local machines. From an experimental design perspective, investigators often desire to identify the effect of new treatments (even ML algorithms) on many blocks of experimental ...
Haiyan Yu, Bing Han, Nicholas Rios, Jianbin Chen   +3 more
doaj   +1 more source

New Constructions and Necessary Conditions for 4-GDDs With Block Size 5

International Journal of Mathematics and Mathematical Sciences
t-v,k,Λ designs are well-known objects of study. Here, we define t-group divisible designs (t-GDDs) and specifically study t-GDDs, where the number of groups are less than the block size. After a short survey of t-GDDs, we will present some examples of 4-
Dinkayehu M. Woldemariam, D. G. Sarvate
doaj   +1 more source

ON D-OPTIMAL CHEMICAL BALANCE WEIGHING DESIGNS

Acta Universitatis Lodziensis. Folia Oeconomica, 2015
The paper deals with the problem of determining the chemical balance weighing designs satisfying the criterion of D-optimality under assumption that the measurement errors are equal correlated and they have the same variances.
Bronisław Ceranka, Małgorzata Graczyk
doaj  

Spot It! and balanced block designs: keys to better debate architecture for a plethora of candidates in presidential primaries? [PDF]

J Appl Stat, 2023
Potthoff RF.
europepmc   +1 more source

Combinatorial Designs with Two Singular Values II. Partial Geometric Designs [PDF]

In this and an earlier paper [17] we study combinatorial designs whose incidence matrix has two distinct singular values.These generalize (v, k, ë) designs, and include uniform multiplicative designs and partial geometric designs.Here we study the latter,
Dam, E.R. van, Spence, E.
core   +1 more source

The optimal design of an experiment with blocks of size two for quadratic regression on one variable. [PDF]

Exact D-optimal designs are derived for an optometry experiment for the estimation of a quadratic polynomial in one explanatory variable. Two observations are made for each subject participating in the experiment, such that each subject serves as a block
Goos, Peter, Vandebroek, Martina
core  

Block Designs with SDP Parameters [PDF]

The Electronic Journal of Combinatorics, 2012
It is traditional to call a quasi-symmetric design with certain parameters an SDP design if the symmetric difference of two different blocks is either a block or a block complement. In this note, we delete the requirements on the parameters and demand just that the symmetric difference of two blocks be a block, a block complement, or either the empty ...
openaire   +2 more sources

Cyclic Polygonal Designs with Block size 3 and Joint Distance 3 [PDF]

Pakistan Journal of Commerce and Social Sciences, 2011
polygons, are useful in survey sampling in terms of balanced sampling plans excluding contiguous units (BSECs) and balanced sampling plans excluding adjacent units (BSAs) when neighboring units in a population provide similar information.
M. H. Tahir (Corresponding author), Ijaz Iqbal, Jamal Abdul Nasir   +2 more
doaj  

Group Divisible Designs with Two Associate Classes and 𝜆2=1

International Journal of Mathematics and Mathematical Sciences, 2011
The original classiffcation of PBIBDs defined group divisible designs GDD(𝑣=𝑣1+𝑣2+⋯+𝑣𝑔,𝑔,𝑘,𝜆1,𝜆2) with 𝜆1≠0. In this paper, we prove that the necessary conditions are suffcient for the existence of the group divisible designs with two groups of unequal ...
Nittiya Pabhapote, Narong Punnim
doaj   +1 more source

Block 5 module design summary [PDF]

The Flat Plate Solar Array Block 5 Module design efforts of six manufacturers are summarized. Residential designs and module designs for intermediate-load applications are described.
Runkle, L. D.
core   +1 more source