Results 21 to 30 of about 646,279 (275)

Two-stage adaptive cluster sampling

Statistical Methods & Applications, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Naddeo, Stefania, Pisani, Caterina
openaire   +2 more sources

Comparação entre procedimentos de amostragem para espécies florestais raras e padrão de distribuição espacial agregado Comparison between sampling procedures for rare forest species and aggregated spatial distribution pattern

Revista Árvore, 2009
O objetivo deste trabalho foi comparar procedimentos de amostragem para espécies florestais com populações raras e padrão de distribuição espacial agregado.
Carlos Pedro Boechat Soares, Christian Marques Rodello, Agostinho Lopes de Souza, Helio Garcia Leite, Vicente Paulo Soares, Gilson Fernandes da Silva   +5 more
doaj   +1 more source

Improved ratio type generalized class of estimators in two phase adaptive cluster sampling [PDF]

Big Data and Computing Visions
In this paper, an improved ratio type class of estimators in the two phase Adaptive Cluster Sampling (ACS) design under the transformed population approach has been proposed.
Rohan Mishra, Rajesh Singh
doaj   +1 more source

Adaptive cluster sampling with model based approach for estimating total number of hidden COVID-19 carriers in Nigeria

Statistical Journal of the IAOS, 2020
Infectious diseases can inflict immense losses and suffering on the human population. As at 23 rd of June, 2020 COVID-19 pandemic has caused 20,919 cases, 25 deaths and 7,109 had recovered in Nigeria.
O. Olayiwola, A. Ajayi, O. C. Onifade, O. Wale-Orojo, B. Ajibade   +4 more
semanticscholar   +1 more source

Optimization of Scat Detection Methods for a Social Ungulate, the Wild Pig, and Experimental Evaluation of Factors Affecting Detection of Scat. [PDF]

PLoS ONE, 2016
Collection of scat samples is common in wildlife research, particularly for genetic capture-mark-recapture applications. Due to high degradation rates of genetic material in scat, large numbers of samples must be collected to generate robust estimates ...
David A Keiter, Fred L Cunningham, Olin E Rhodes, Brian J Irwin, James C Beasley   +4 more
doaj   +1 more source

Accelerating Energy-Economic Simulation Models via Machine Learning-Based Emulation and Time Series Aggregation

Energies, 2022
Energy-economic simulation models with high levels of detail, high time resolutions, or large populations (e.g., distribution networks, households, electric vehicles, energy communities) are often limited due to their computational complexity. This paper
Alexander J. Bogensperger, Yann Fabel, Joachim Ferstl   +2 more
doaj   +1 more source

Modified Adaptive Cluster Sampling Designs [PDF]

Communications for Statistical Applications and Methods, 2007
Adaptive cluster sampling design is known as a sampling method for rare clustered population. Three modified adaptive cluster sampling designs are proposed. The adjusted Hansen-Hurwitz estimator and the Horvitz-Thompson estimator are considered. Efficiency issue of the proposed sampling designs is discussed in a Monte-Carlo simulation study.
Jeong-Soo Park, Youn-Woo Kim, Chang-Kyoon Son   +2 more
openaire   +1 more source

Improvement of low level bark beetle damage estimates with adaptive cluster sampling

Silva Fennica, 2010
Detection of low level infestation in forest stands is of principle importance to determine effective control strategies before the attack spread to large areas.
Coggins, Sam, Coops, Nicholas, Wulder, Michael   +2 more
doaj   +1 more source

Generalized Exponential Estimator for the Estimation of Clustered Population Variance in Adaptive Cluster Sampling

Journal of Statistical Theory and Applications (JSTA), 2019
In this paper, we proposed a generalized exponential estimator with two auxiliary variables for the estimation of highly clumped population variance under adaptive cluster sampling design. The expressions of approximate bias and minimum mean square error
Muhammad Nouman Qureshi, Ayesha Iftikhar, Muhammad Hanif   +2 more
doaj   +1 more source

KEMAMPUAN PENALARAN ADAPTIF SISWA SMP se-KOTA PONTIANAK

Aksioma: Jurnal Program Studi Pendidikan Matematika, 2018
This study aims to reveal the ability of adaptive reasoning of junior high school students in Pontianak, which is divided into categories of secondary, middle and lower schools. This research is descriptive research with research form is survey. Sampling
Yadi Ardiawan, Nurmaningsih Nurmaningsih
doaj   +1 more source