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Population Size Estimation with Covariate Values Missing Non-ignorable
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作者 Li-ping LIU zhi-chao guo Xiao-gang DUAN 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2016年第3期659-668,共10页
The main purpose of this paper is using capture-recapture data to estimate the population size when some covariate values are missing, possibly non-ignorable. Conditional likelihood method is adopted, with a sub-model... The main purpose of this paper is using capture-recapture data to estimate the population size when some covariate values are missing, possibly non-ignorable. Conditional likelihood method is adopted, with a sub-model describing various missing mechanisms. The derived estimate is proved to be asymptotically normal, and simulation studies via a version of EM algorithm show that it is approximately unbiased. The proposed method is applied to a real example, and the result is compared with previous ones. 展开更多
关键词 CAPTURE-RECAPTURE conditional likelihood EM algorithm missing non-ignorable
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