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This discussion focuses on new and emerging methods for imputation and editing in data analysis. Topics include partial imputation with adjustments, a forward search algorithm for compositional data, automatic editing with soft edits, imputation of binary variables in registers, imputation and editing of income from the administrative file, and an R package for selective editing based on a latent class model.
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Discussants: Rudi Seljak / SORS Daniel Kilchmann / SFSO Topic (vii): New and emerging methodsDiscussion UNECE Work session on SDE Topic (vii) New and emerging methods
UNECE Work session on SDE Topic (vii) New and emerging methods Summary of papers (1) • WP.40: Partial (donor) imputation with adjustments (Netherlands, Norway) Discussion of different distance metrics to perform minimal adjustments to imputed data in order to guarantee consistency. • WP.41: A forward search algorithm for compositional data (Italy) Discussion of a procedure for detecting outliers in compositional data.
UNECE Work session on SDE Topic (vii) New and emerging methods Summary of papers (2) • WP.42: Automatic editing with soft edits (Netherlands) New formulation of the error localisation problem including hard and soft edits and its solution with a branch-and-bound algorithm. • WP.43: On imputation of binary variables in registers (Sweden) Discussion of random imputation versus deterministic imputation in the case of imputing binary variables with respect to accuracy leading to a recommendation which method to use.
UNECE Work session on SDE Topic (vii) New and emerging methods Summary of papers (3) • WP.44: Imputation and editing of income from the administrative file in the Census (Israel) Procedure adopted to overcome the deficiencies of Census and administrative data in the case of imputing income. • WP.45: An R package for selective editing based on a latent class model (Italy) Discussion of the use of the R package SeleMix where a method taking explicitly the probability of being in error and the error impact into account is implemented.
UNECE Work session on SDE Topic (vii) New and emerging methods Paper-Specific Questions
UNECE Work session on SDE Topic (vii) New and emerging methods Paper-Specific Questions WP.40: Partial (donor) imputation with adjustments (Netherlands) • What happens if the only reported value is 0? • Is it possible to include domains (e.g. salary boundaries per education level)? WP.41: A forward search algorithm for compositional data (Italy) • Efficiency of the method (true, false) x (detected, undetected)? • Does the method work if there are lots of zeros in the data?
UNECE Work session on SDE Topic (vii) New and emerging methods Paper-Specific Questions WP.42: Automatic editing with soft edits (Netherlands) • Is there already a strategy or idea how to define the cost of failed soft edit rules? • Advances in the implementation? WP.43: On imputation of binary variables in registers (Sweden) • Why not use multiple imputation instead of repeated random imputation? • The risk of bias and the loss of variance for deterministic imputation and the loss of efficiency for random imputation increases for small sub-populations. Limitation for imputation in general?
UNECE Work session on SDE Topic (vii) New and emerging methods Paper-Specific Questions WP.44: Imputation and editing of income from the administrative file in the Census (Israel) • Is it possible to validate the strategy adopted by the insurance salary data base 2009? WP.45: An R package for selective editing based on a latent class model (Italy) • When will the R package be available on the Cran library?