Dr. Dimitrios PAPADOPOULOS Received Best Paper Award Runner-Up at 2021 ACM Cloud Computing Security Workshop

Dr. Dimitrios PAPADOPOULOS received Best Paper Award Runner-Up at 2021 ACM Cloud Computing Security Workshop (CCSW) with his work titled "Private Hierarchical Clustering and Efficient Approximation", co-authored with researchers Xianrui MENG, Alina OPREA and Nikos TRIANDOPOULOS. The award was presented in a virtual online event on 15 November 2021.

The work is targeted at privacy-preserving collaborative hierarchical clustering. With the introduction of a formal security definition and a two-party protocol that could provably satisfy it, the balance between utility and privacy has been achieved. The protocol is then extended with (i) an optimized version for the single-linkage clustering, and (ii) scalable approximation variants. The results were encouraging after implementing all the schemes and evaluating the performance and accuracy on synthetic and real datasets experimentally.

The ACM Cloud Computing Security Workshop was established in 2009, is the world's premier forum bringing together researchers and practitioners in all security aspects of cloud-centric and outsourced computing.

For more information, please refer to the CCSW event website.

Congratulations to Dr. Papadopoulos!

More News