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Probabilistic QV
Sybil attack is advantageous in QV because the more votes are divided, the more profitable it is. D3LAB suggests PQV which applies a probabilistic model so dividing votes always results in a loss.
Assume that the total number of votes is 100, and a user submitted 10 votes. There is a 10% (
) of chance that his opinion will be reflected, or a 90% (
)chance that it will not.
The expected value of voting in this condition is
. However if the user split the 10 votes in two, the expected value lowered to
. This means doing Sybil attack is less beneficial.
Last modified 11mo ago