Results 31 to 40 of about 83,537 (273)

Construction Procurement: Modelling Bidders’ Learning in Recurrent Bidding [PDF]

open access: yes, 2015
Construction remains a significant area of public expenditure. An understanding of the process of changes in construction pricing, and how the process can be manipulated through the release of bidding feedback information is vital, in order to best ...
Ling, Florence Yean Yng   +2 more
core   +3 more sources

Expectation-Maximization Algorithm for the Calibration of Complex Simulator Using a Gaussian Process Emulator

open access: yesEntropy, 2020
The approximated non-linear least squares (ALS) tunes or calibrates the computer model by minimizing the squared error between the computer output and real observations by using an emulator such as a Gaussian process (GP) model. A potential defect of the
Yun Am Seo, Jeong-Soo Park
doaj   +1 more source

Mean squared error of empirical predictor

open access: yes, 2004
The term ``empirical predictor'' refers to a two-stage predictor of a linear combination of fixed and random effects. In the first stage, a predictor is obtained but it involves unknown parameters; thus, in the second stage, the unknown parameters are ...
Das, Kalyan   +2 more
core   +2 more sources

Simulation Study of Robust Geographically Weighted Empirical Best Linear Unbiased Predictor on Small Area Estimation

open access: yesIndonesian Journal of Statistics and Its Applications, 2021
Small area estimation can be used to predict the population parameter with small sample sizes. For some cases, the population units that are close spatially may be more related than units that are further apart. The use of spatial information like geographic coordinates are studied in this research.
Naima Rakhsyanda   +2 more
openaire   +2 more sources

Spatial heterogeneities in acute lower respiratory infections prevalence and determinants across Ethiopian administrative zones

open access: yesJournal of Big Data, 2022
Background Acute lower respiratory infections (ALRI) are a major cause of mortality among children under five. This study aimed to investigate the spatiotemporal pattern of ALRI in Ethiopian administrative zones.
Meseret Tadesse Fetene   +2 more
doaj   +1 more source

A genome-wide association study and genomic prediction for Phakopsora pachyrhizi resistance in soybean

open access: yesFrontiers in Plant Science, 2023
Soybean brown rust (SBR), caused by Phakopsora pachyrhizi, is a devastating fungal disease that threatens global soybean production. This study conducted a genome-wide association study (GWAS) with seven models on a panel of 3,082 soybean accessions to ...
Haizheng Xiong   +5 more
doaj   +1 more source

Local case-control sampling: Efficient subsampling in imbalanced data sets [PDF]

open access: yes, 2014
For classification problems with significant class imbalance, subsampling can reduce computational costs at the price of inflated variance in estimating model parameters.
Fithian, William, Hastie, Trevor
core   +1 more source

Strategies for Estimating Genetic Parameters in Marker-Assisted Best Linear Unbiased Predictor Models in Dairy Cattle [PDF]

open access: yesJournal of Dairy Science, 2008
An appropriate strategy to estimate variance components and breeding values in genetic models with quantitative trait loci (QTL) was developed for a dairy cattle breeding scheme by utilizing simulated data. Reliable estimates for variance components in QTL models are a prerequisite in fine-mapping experiments and for marker-assisted genetic evaluations.
S, Neuner   +3 more
openaire   +2 more sources

On Empirical Best Linear Unbiased Predictor under s Linear Mixed Model with Correlated Random Effects

open access: yesEkonometria, 2020
The problem of small area prediction is considered under a Linear Mixed Model. The article presents a proposal of an empirical best linear unbiased predictor under a model with two correlated random effects.
Małgorzata K. Krzciuk
doaj  

Best linear unbiased estimation for varying probability with and without replacement sampling

open access: yesSpecial Matrices, 2019
When sample survey data with complex design (stratification, clustering, unequal selection or inclusion probabilities, and weighting) are used for linear models, estimation of model parameters and their covariance matrices becomes complicated.
Haslett Stephen
doaj   +1 more source

Home - About - Disclaimer - Privacy