Results 51 to 60 of about 85,957 (174)

Notes on the Regular E-Optimal Spring Balance Weighing Designs with Correlated Errors

Revstat Statistical Journal, 2015
The paper deals with the estimation problem of individual weights of objects in Eoptimal spring balance weighing design. It is assumed that errors are equal correlated.
Bronisław Ceranka , Małgorzata Graczyk   +1 more
doaj   +1 more source

Expurgated PPM Using Symmetric Balanced Incomplete Block Designs

, 2012
In this letter, we propose a new pulse position modulation (PPM) scheme, called expurgated PPM (EPPM), for application in peak power limited communication systems, such as impulse radio (IR) ultra wide band (UWB) systems and free space optical (FSO ...
Brandt-Pearce, Maite, Noshad, Mohammad
core   +1 more source

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

BLOCK DESIGNS UNDER AUTOCORRELATED ERRORS [PDF]

, 2011
This research work is focused on the balanced and partially balanced incomplete block designs when observations within blocks are correlated. The topic for this dissertation was motivated by a problem in pharmaceutical research, when several treatments ...
Shu, Xiaohua
core   +1 more source

Regular A-optimal Spring Balance Weighing Designs

Revstat Statistical Journal, 2012
The problem of indicating an A-optimal spring balance weighing design providing that the measurement errors have different variances and are uncorrelated is considered.
Małgorzata Graczyk
doaj   +1 more source

Almost designs and their links with balanced incomplete block designs [PDF]

Designs, Codes and Cryptography, 2019
Almost designs ($t$-adesigns) were proposed and discussed by Ding as a certain generalization of combinatorial designs related to almost difference sets. Unlike $t$-designs, it is not clear whether $t$-adesigns need also be $(t-1)$-designs or $(t-1)$-adesigns.
Jerod Michel, Qi Wang 0012
openaire   +2 more sources

Group Divisible Codes and Their Application in the Construction of Optimal Constant-Composition Codes of Weight Three [PDF]

, 2008
The concept of group divisible codes, a generalization of group divisible designs with constant block size, is introduced in this paper. This new class of codes is shown to be useful in recursive constructions for constant-weight and constant-composition
Chee, Yeow Meng, Ge, Gennian, Ling, Alan C. H.   +2 more
core   +1 more source

Remarks on balanced incomplete block designs [PDF]

Proceedings of the American Mathematical Society, 1963
PROOF. Assume the hypothesis and the falsity of either conclusion. Construct matrix A of 2x+2 rows and 4x+4 columns, with entries + 1 and - 1. The first column contains exclusively + 1, and the second column - 1. Set up one-to-one correspondences between rows of A and elements of D; between columns other than the first two of A and blocks of D. Enter +
openaire   +1 more source

A Note on a Family of Resolvable Balanced Incomplete Block Designs [PDF]

, 1970
6 pages, 1 article*A Note on a Family of Resolvable Balanced Incomplete Block Designs* (Hedayat, A.; Raktoe, B.
Cornell University. Biometrics Unit., Cornell University. Dept. of Biological Statistics and Computational Biology., Cornell University. Dept. of Biometrics., Hedayat, A., Raktoe, B. L.   +4 more
core  

Two-level Cretan matrices constructed using SBIBD

Special Matrices, 2015
Two-level Cretan matrices are orthogonal matrices with two elements, x and y. At least one element per row and column is 1 and the other element has modulus ≤ 1.
Balonin N. A., Seberry Jennifer
doaj   +1 more source