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Imputation Methods for the Population and Housing Census 2000 in Korea

  • Kim, Young-Won (Department of Statistics, Sookmyung Women´s University) ;
  • Ryu, Jeabok (Department of Applied Statistics, Chongju University) ;
  • Park, Jinwoo (Department of Applied Statistics, The University of Suwon) ;
  • Lee, Jaewon (Statistician, Population Census Division, National Statistics Office)
  • Published : 2003.08.01

Abstract

We proposed imputation strategies for the Population and Housing Census 2000 in Korea. The total area of floor space and marital status which have relatively high non-response rates in the Census are considered to develope the effective missing value imputation procedures. The Classification and Regression Tree(CART) is employed to construct the imputation cells for hot-deck imputation, as well as to predict missing value by model-based approach. We compare three imputation methods which include CART model-based imputation, hot-deck imputation based on CART and logical hot-deck imputation proposed by The Korea National Statistical Office. The results suggest that the proposed hot-deck imputation based on CART is very efficient and strongly recommendable.

Keywords

References

  1. Classification and Regression Trees Breiman,L.;Friedman,J.H.;Olshen,R.A.;Stone,C.J.
  2. Proceedings of the Section on Survey Research Methods Multivariate Item Imputation for the 2000 Census Short Form Thibaudeau,Y.;Williams,T.;Krenzke,T.
  3. Technical Report, Bureau of the Census Statistical Research Division Imputing Person Age for the 2000 Census Short Form: A Model-Based Approach Williams,T.R.