Results 11 to 20 of about 415,792 (296)

On efficiency of cluster sampling on sampling on two occasions

open access: yesStatistica, 2007
In this paper it has been shown that even if the intra-class correlation coefficient among the units in the same cluster is positive, under certain condition, the cluster sampling on two occasions is likely to be more efficient than the simple random ...
Bijoy Kumar Pradhan
doaj   +2 more sources

A spatiotemporal analysis of crimes reported in the North Shewa Zone of Amhara region, Ethiopia [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2023
Crime is a societal problem that has an impact on the quality of life and economic prosperity of a society. So, crime data analysis is used to understand more about how and why crime happens, as well as the policy measures to reduce its rate.
Abere Wondimu Kassie   +3 more
doaj  

Multiple Sample Clustering

open access: yesCoRR, 2019
The clustering algorithms that view each object data as a single sample drawn from a certain distribution, Gaussian distribution, for example, has been a hot topic for decades. Many clustering algorithms: such as k-means and spectral clustering are proposed based on the single sample assumption.
Xiang Wang, Tie Liu
openaire   +2 more sources

Anaemia among adolescents: A community-based study using cluster sampling in villages under Sarjapur Primary Health Centre, Bangalore urban district

open access: yesIndian Journal of Health Sciences and Biomedical Research KLEU, 2020
Background: India has the largest adolescent population in the world, the majority of whom reside in rural areas. Anemia is one of the top five causes of morbidity among adolescents.
Avita Rose Johnson   +2 more
doaj   +1 more source

A Double-Sampling Extension of the German National Forest Inventory for Design-Based Small Area Estimation on Forest District Levels

open access: yesRemote Sensing, 2018
The German National Forest Inventory consists of a systematic grid of permanent sample plots and provides a reliable evidence-based assessment of the state and the development of Germany’s forests on national and federal state level in a 10 year ...
Andreas Hill   +2 more
doaj   +1 more source

Intracluster Homogeneity Selection Problem in a Business Survey

open access: yesBusiness Systems Research, 2016
Background: In the cluster sampling approach many parameters have influence on lowering the survey costs and one of the most important is the intracluster homogeneity.
Žmuk Berislav
doaj   +1 more source

Active sampling for constrained clustering

open access: yesThe 6th International Conference on Soft Computing and Intelligent Systems, and The 13th International Symposium on Advanced Intelligence Systems, 2012
Constrained clustering is a framework for improving clustering performance by using constraints about data pairs. Since performance of constrained clustering depends on the set of constraints used, a method is needed to select good constraints that promote clustering performance.
Masayuki Okabe, Seiji Yamada
openaire   +1 more source

Rural children active trachoma risk factors and their interactions

open access: yesThe Pan African Medical Journal, 2016
INTRODUCTION: trachoma is a serious public health problem in rural Ethiopia. The aim of this investigation was to provide in-depth statistical analysis of the risk factors associated with active trachoma among children of age 1-9 years of Kedida Gamela ...
Essey Kebede Muluneh   +2 more
doaj   +1 more source

Comparison of Sampling Strategies to Estimate Abundance of Double-Crested Cormorants in Western Mississippi

open access: yesHuman-Wildlife Interactions, 2017
We compared 2 sampling strategies designed to estimate abundance of double-crested cormorants (Phalacrocorax auritus, hereafter cormorants) on aquaculture ponds in western Mississippi.
Aaron T. Pearse   +3 more
doaj   +1 more source

Prevalence and determinants of depression among multi drug resistant (MDR) TB cases registered under national tuberculosis elimination program in Ahmedabad City

open access: yesIndian Journal of Community Medicine, 2022
Background: Multidrug-resistant tuberculosis (MDR-TB) increases the risk of depression, lowers treatment compliance leading to poor outcomes. Objectives:To (1) document the prevalence of depression among MDR-TB cases registered at tuberculosis units (TUs)
Rashmi Sharma   +9 more
doaj   +1 more source

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