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Lehrstuhl fr Informatik 9 Zeit: Freitag, 19.06.09, 14.00 Uhr

Summary: Lehrstuhl für Informatik 9
Zeit: Freitag, 19.06.09, 14.00 Uhr
Ort: 6329 (Seminarraum Informatik 9), Ahornstr. 55
Referent: Frau Dr. Ira Assent
Aalborg University, Dänemark
Titel: Privacy-aware outsourcing of metric data
For large multimedia databases, outsourcing of data is an inter-
esting option for reducing cost and maintenance overhead. To
protect valuable data, privacy needs to be guaranteed while still
providing the means for meaningful access to the data. This
work considers private similarity search on arbitrary metric fea-
tures in an outsourcing scenario. We propose techniques that
transform the data prior to supplying it to the outsourcing ser-
vice provider in order to protect privacy. The techniques repre-
sent different, useful trade-offs among data privacy, query cost
and accuracy. We characterize the privacy offered by the differ-
ent techniques, and discuss how they can be further extended
for the k-anonymization model. Our experiments with real world


Source: Ábrahám, Erika - Fachgruppe Informatik, Rheinisch Westfälische Technische Hochschule Aachen (RWTH)


Collections: Computer Technologies and Information Sciences