Comparison to non-private distributed ID3. We conclude by comparing the communication complexityto that of the non-private distributed ID3 protocol (see Section 5.1). In the non-private case, thebandwidth for each node is exactly |R|m` log |T| bits. On the other hand, in order to achieve a privateprotocol, an additional multiplicative factor of k ·|S| is incurred (plus the constants incurred by the x ln xand Yao protocols). Thus, the communication complexity of the private protocol is reasonably close tothat of its non-private counterpart.
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