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The Decision of Critical Population Size for Releasing Micro Data Files

마이크로데이터 제공에 따른 임계모집단 크기 결정

  • NamKung, Pyong (Department of Statistics, Sungkyunkwan University) ;
  • So, Joung-Hyun (Seosan branch, Chungcheong Regional Statistics Office)
  • 남궁 평 (성균관대학교 통계학과) ;
  • 소정현 (충청지방통계청 서산사무소)
  • Received : 20100500
  • Accepted : 20100900
  • Published : 2010.11.30

Abstract

This study reviews the concept of disclosure, disclosure risks, and uniqueness. The number of uniqueness in the population is of great importance in evaluating the disclosure risk of micro data files. We approach this problem by considering some basic superpopulation models including the Multinomial-Dirichlet model, the Poisson- Gamma model of Bethlehem et al. (1990) and Takemura (1997), and the Modified Multinomial-Dirichlet model. We decided the critical population size of each superpopulation model for four different superpopulation models.

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