Task: Privacy-Preserving Record Linkage

Privacy-preserving record linkage (PPRL) is the process of identifying and matching records that represent the same entity across databases held by different organizations without revealing any sensitive information about these entities. At the end of the PPRL process only limited information about record pairs that have been classified as matches (i.e .refer to the same entity) will be revealed either to the two databases involved in a linkage, or to an external party.

Besides the two main challenges of record linkage, namely linkage quality and scalability of linking increasingly large databases, priavacy poses another major challenge that needs to be adressed in many real-world record linkage applications. PPRL methods need to be secure to a variety of attacks, including dictionary, frequency or more sophisticated crypt-analysis attacks.

Further reading:

A taxonomy of privacy-preserving record linkage techniques, D Vatsalan, P Christen and VS Verykios, 2013

Privacy-preserving record linkage, P Christen and VS Verykios, 2016

An Evaluation Framework for Privacy-Preserving Record Linkage, D Vatsalan, P Christen, CM O’Keefe and VS Verykios

Privacy-preserving record linkage, R Schnell, 2016

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