Título inglés |
A comparative study of microaggregation methods. |
Título español |
Estudio comparativo de métodos de microagregación. |
Autor/es |
Mateo Sanz, Josep Maria ; Domingo Ferrer, Josep |
Organización |
Dep. Eng. Informàt. Univ. Rovira i Virgili, Tarragona, España |
Revista |
0210-8054 |
Publicación |
1998, 22 (3): 511-526, 9 Ref. |
Tipo de documento |
articulo |
Idioma |
Inglés |
Resumen inglés |
Microaggregation is a statistical disclosure control technique for microdata. Raw microdata (i.e. individual records) are grouped into small aggregates prior to publication. Each aggregate should contain at least k records to prevent disclosure of individual information. Fixed-size microaggregation consists of taking fixed-size microaggregates (size k). Data-oriented microaggregation (with variable group size) was introduced recently. Regardless of the group size, microaggregations on a multidimensional data set can be formed using univariate techniques on projected data or using multivariate techniques. This paper presents the first method for multivariate fixed-sixe microaggregation. In addition, a real data set is used to compare the information loss and output data quality of fixed-size vs. data-oriented, and univariate vs. multivariate microaggregation. |
Clasificación UNESCO |
120909 |
Palabras clave español |
Control estadístico ; Registro de datos ; Protección de datos ; Análisis multivariante ; Estudio comparativo |
Acceso al artículo completo |