ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01321.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01322.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

National statistical offices meet an increasing demand for the dissemination of data sets containing individual data on respondents. This trend may cause problems with respect to the care taken not to disclose data about individuals. Therefore the risk of disclosure of each microdata set to be released should be assessed. If this risk is too high, measures have to be taken to protect the data set. This contribution describes the disclosure problem, and explains why it is a real problem. Using the concept of uniqueness, some theory is developed which may help to establish the risk of identification. It turns out that useful microdata sets can only be released if some of the disclosure risks are dealt with by legal arrangements, rather than by restrictions on the data to be released.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01323.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Two definitions of statistical disclosure ‐ identification disclosure and prediction disclosure ‐ are compared. Identification disclosure implies prediction disclosure but not vice versa. It is argued, however, that if sampling takes place then cases where prediction disclosure occurs and identification disclosure does not either have very small probability or do not present disclosure problems different from those normally met in the release of aggregate statistics. Finally the estimation of population uniqueness using the Poisson‐Gamma model is consi

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01324.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

Statistical agencies have the responsibility to design data release strategies which will not violate pledges of nondisclosure either through intent or neglect. In addition to ethical and legal concerns, statistical offices must be mindful that violating pledges of confidentiality may undermine an agency's ability to collect data due to loss of public trust. Statistical organizations also have the obligation to make information available to a variety of individuals and institutions to allow for informed discussion from differing perspectives on a range of issues. However, it is through fine, accurate detail on a file that risks of disclosure arise. In this report we discuss strategies for controlling risk in the release of public use microdata files. The equivalence class structure of a microdata file is defined and we show how the classic entropy function can be employed on the equivalence class structure to provide a measure of relative risk.

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01325.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

In this paper a model is developed for assesing disclosure risks of a microdata set. It is an extension of the one presented in Bethlehem et al. (1988). It is used to calculate (an upper bound of) the risk that an investigator is able to reidentify at least one individual in an anonimyzed data set, and hence discloses some sensitive information about him. This risk is shown to depend on, among other things, two variables which can be controlled by the statistical office which is disseminating such a data set: the ‘coarseness’ of the key variables and the size of the data set. The model yields guidelines as to the usage of these two instruments to control the disclosure r

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01326.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

摘要:

In the research project on data anonymity, the possibilities and difficulties of restoring the identity of respondents, whose data have been anonymized, were tested in realistic simulations. In this paper the results of an application of a) a matching procedure and of b) a method based on discriminate analysis are reported. In the experiments carried out, empirical data of a handbook about German scientists and scholars and the German microcensus were used. A check of the results by an independent data‐trustee demonstrated that a real intruder has more difficulties achieving an identification than is frequently assume

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01327.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01328.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01329.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY

ISSN:0039-0402    

DOI:10.1111/j.1467-9574.1992.tb01330.x

出版商:Blackwell Publishing Ltd    

年代:1992

数据来源: WILEY