Estimation of the population size by using the oneinflated positive Poisson model

نویسندگان

  • Ryan T. Godwin
  • Dankmar Böhning
چکیده

In population size estimation, many capture–recapture-type data exhibit a preponderance of ‘1’-counts. This excess of 1s can arise as subjects gain information from the initial capture that provides a desire and ability to avoid subsequent captures. Existing population size estimators that purport to deal with heterogeneity can be much too large in the presence of 1-inflation, which is a specific form of heterogeneity. To deal with the phenomena of excess 1s, we propose the one-inflated positive Poisson model for use as the truncated count distribution in Horvitz–Thompson estimation of the population size.

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تاریخ انتشار 2016