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STATISTICAL METHODS FOR A MIXTURE OF SUBPOPULATIONS

STATISTICAL METHODS FOR A MIXTURE OF SUBPOPULATIONS
混合亚群的统计方法
批准号：
3756680
负责人：
K F YU
金额：
$0.0万
依托单位：
EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT
依托单位国家：
美国
项目类别：
财政年份：
--
资助国家：
美国
项目状态：
未结题
起止时间：
至
来源：
https://reporter.nih.gov/project-details/3756680
关键词：
gestational age human birth weight human data infant mortality mathematical model method development model design /development population survey pregnancy prenatal growth disorder statistics /biometry vital statistics

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中文摘要
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英文摘要
This study will examine the intrinsic difficulty of estimating subpopulation characteristics when the identities of the observations are not completely known. Hard clustering and fuzzy clustering techniques are investigated. This study will develop estimation of methodologies for the subpopulation characteristics. The new methodologies will alleviate some of the intrinsic difficulties for a heterogeneous mixture of subpopulations. Applications will be made to study the issues concerning biological heterogeneity and measurement error in the birth weight, gestational age and perinatal mortality. This study will also be applied to the investigation of intrauterine growth and pregnancy outcome.
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