About the Authors

Marco Ajelli

Contributed equally to this work with: Marco Ajelli, Stefano Merler

To whom correspondence should be addressed. E-mail: ajelli@fbk.eu

Affiliations Fondazione Bruno Kessler, Trento, Italy, Information Engineering and Computer Science Department, University of Trento, Italy

Stefano Merler

Contributed equally to this work with: Marco Ajelli, Stefano Merler

Affiliation Fondazione Bruno Kessler, Trento, Italy

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SM MA. Performed the experiments: SM MA. Wrote the paper: SM MA.