Aldo Tragni invented the Distributed Voting (currently the most supported by him for multi-winners contexts), Distributed 2-Voting and the Distributed Multi-Voting.
He defined the Honesty criterion and IWA.
He has made this site (beta version) where it's possible to create surveys that use Distributed Voting with range [0,9], for single and multi-winners.
He also contributed to some voting systems, creating the following diagrams that explain the procedure in a simple way:
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Other diagrams:
