Adversary Model - Important Results

Important Results

From S. Ben-David, A. Borodin, R. Karp, G. Tardos, A. Wigderson we have:

  • If there is a randomized algorithm that is α-competitive against any adaptive offline adversary then there also exists an α-competitive deterministic algorithm.
  • If G is a c-competitive randomized algorithm against any adaptive online adversary, and there is a randomized d-competitive algorithm against any oblivious adversary, then G is a randomized (c * d)-competitive algorithm against any adaptive offline adversary.

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