Section: New Software and Platforms

Chiaroscuro

Keywords: Privacy - P2P - Data mining

Functional Description: Chiaroscuro is a complete solution for clustering personal data with strong privacy guarantees. The execution sequence produced by Chiaroscuro is massively distributed on personal devices, coping with arbitrary connections and disconnections. Chiaroscuro builds on our novel data structure, called Diptych, which allows the participating devices to collaborate privately by combining encryption with differential privacy. Our solution yields a high clustering quality while minimizing the impact of the differentially private perturbation.

• Participants: Tristan Allard, Georges Hebrail, Florent Masseglia and Esther Pacitti

• Contact: Florent Masseglia

• Publication: Chiaroscuro: Transparency and Privacy for Massive Personal Time-Series Clustering