L. Zhang
Over the past decades reusing data originated from administrative sources has gathered greater momentum internationally. The more recent digital revolution has greatly improved the availability of data outside the administrative sources, which can as well be repurposed for Official Statistics. In this talk I will summarise the changing paradigms of Official Statistics and the transformation of national statistical systems. Several high-profile on-going developments of administrative and unconventional big data sources will be reviewed and discussed. Special attention is given to situations where such sources can be envisaged to replace altogether the traditional sampling survey data, but the potential bias completely dominates the variance due to the large amount of data. An audit sampling approach will be developed and illustrated, where the aim is to statistically validate the estimation based on alternative sources, and to provide appropriate uncertainty measures.
Palabras clave: Official Statistics, Big Data
Programado
PEP Sesión Plenaria Estadística Pública
5 de septiembre de 2019 09:00
Salón Actos. Edificio CADA