Year: 2013
Type: conference-paper
Abstract: Increasingly, administrative data is being used for statistical purposes, for example when conducting registry based censuses. In practice, this usually requires linking separate files containing information on the same unit, without revealing the identity of the unit. If the linkage has to be done without a unique identification number, the comparison of keys derived from unit identifiers is necessary. When dealing with large files like census data or population registries, comparing each possible pair of keys in the two files is impossible. Therefore, special algorithms (blocking methods) have to be used to reduce the number of comparisons. The presentation will discuss the most commonly used blocking algorithms for encrypted data. Finally, a new blocking method suitable for large encrypted datasets will be demonstrated.
Author: Rainer Schnell
Language: English
Topic: Data Quality and Management
Subfield: Information Systems
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2189164326