Results 21 to 30 of about 18,707,175 (333)

Sensor Calibration Design Based on D-Optimality Criterion

open access: yes, 2016
In this study, a procedure for optimal selection of measurement points using the D-optimality criterion to find the best calibration curves of measurement sensors is proposed.
C. Hajiyev
semanticscholar   +1 more source

Gaussian Process Assisted Active Learning of Physical Laws [PDF]

open access: yesTechnometrics 2021. 63(3), 329-342, 2019
In many areas of science and engineering, discovering the governing differential equations from the noisy experimental data is an essential challenge. It is also a critical step in understanding the physical phenomena and prediction of the future behaviors of the systems. However, in many cases, it is expensive or time-consuming to collect experimental
arxiv   +1 more source

Branch-and-bound for D-Optimality with fast local search and variable-bound tightening [PDF]

open access: yesarXiv, 2023
We apply a branch-and-bound (B\&B) algorithm to the D-optimality problem based on a convex mixed-integer nonlinear formulation. We discuss possible methodologies to accelerate the convergence of the B\&B algorithm, by combining the use of different upper bounds, variable-bound tightening inequalities, and local-search procedures.
arxiv  

D-Optimal Designs with Hadamard Matrix

open access: yesJournal of Mathematical Analysis and Applications, 1993
AbstractThe existence theorem of D-optimal designs and an explicit formula to lind D-optimal designs for a linear regression model are given on a sphere. The computation is simple and efficient. A numerical example is used to illustrate the method.
Keh-Shin Lii, King Leung Chow
openaire   +2 more sources

Subsurface characterization using a D-optimality based pilot point method

open access: yes, 2011
Detailed hydraulic conductivity estimation is a difficult problem as the number of direct measurements available at a typical field site is relatively few and sparse.
Yong Jung   +2 more
semanticscholar   +1 more source

Sparse kernel regression modeling using combined locally regularized orthogonal least squares and D-optimality experimental design

open access: yesIEEE Transactions on Automatic Control, 2003
The note proposes an efficient nonlinear identification algorithm by combining a locally regularized orthogonal least squares (LROLS) model selection with a D-optimality experimental design.
Sheng Chen, X. Hong, C. Harris
semanticscholar   +1 more source

Recent developments in D-optimal designs

open access: yesCommunications in Statistics - Theory and Methods, 2018
In the paper, some issues concerned with the determining spring balance weighing designs satisfying the criterion of D-optimality under the assumption measurement errors are uncorrelated and they have the same variances are discussed. In addition, highly D-efficient spring balance weighing designs are also considered.
Bronisław Ceranka, Małgorzata Graczyk
openaire   +2 more sources

On the enumeration of some D-optimal designs [PDF]

open access: yesJournal of Statistical Planning and Inference, 2008
Two matrices with elements taken from the set {-1,1} are Hadamard equivalent if one can be converted into the other by a sequence of permutations of rows and columns, and negations of rows and columns. In this paper we summarize what is known about the number of equivalence classes of matrices having maximal determinant.
openaire   +3 more sources

Multivariate Tie-breaker Designs [PDF]

open access: yesElectron. J. Statist. 18(2): 4612-4639 (2024), 2022
In a tie-breaker design (TBD), subjects with high values of a running variable are given some (usually desirable) treatment, subjects with low values are not, and subjects in the middle are randomized. TBDs are intermediate between regression discontinuity designs (RDDs) and randomized controlled trials (RCTs).
arxiv  

Adaptive grid semidefinite programming for finding optimal designs [PDF]

open access: yes, 2017
We find optimal designs for linear models using anovel algorithm that iteratively combines a semidefinite programming(SDP) approach with adaptive grid techniques.The proposed algorithm is also adapted to find locally optimaldesigns for nonlinear models ...
Dette, Holger   +2 more
core   +1 more source

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