JOS

Abstract
Journal of Official Statistics, Vol.9, No.2, 1993. pp. 407426

Contents
Current Issue
Personal Reference Library (PRL)
Personal Page
Archive
Search
Home


Statistical Analysis of Masked Data

Abstract:
A model-based likelihood theory is presented for the analysis of data masked for confidentiality purposes. The theory builds on frameworks for missing data and treatment assignment, and a theory for coarsened data. It distinguishes a model for the masking selection mechanism, which determines which data values are masked, and the masking treatment mechanism, which specifies how the masking is carried out. The framework is applied to a variety of masking methods, including randomized response, subsampling of cases or variables, deletion, coarsening by grouping or rounding, imputation, aggregation, noise injection and simulation of artificial records.

Keywords:
Confidentiality; grouped data; imputation; missing data; randomized response; rounded data; slicing

Copyright Statistics Sweden 1996-2018.  Open Access
ISSN 0282-423X
Created and Maintained by OKS Group