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openPDS: Protecting the Privacy of Metadata through SafeAnswers

Figure 5

Group Computation Overview.

(1) A querying agent (like CouponInc) passes a function that its wants a collaborative answer for, along with a list of URI to PDSs. (2) PDSs all trade messages in order to compute a collaborative answer. (3) The answer is reported back to the querying agent.

Figure 5

doi: https://doi.org/10.1371/journal.pone.0098790.g005