The Partition Bound for Classical Communication Complexity and Query Complexity

  • Authors:
  • Rahul Jain;Hartmut Klauck

  • Affiliations:
  • -;-

  • Venue:
  • CCC '10 Proceedings of the 2010 IEEE 25th Annual Conference on Computational Complexity
  • Year:
  • 2010

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Abstract

We describe new lower bounds for randomized communication complexity and query complexity which we call the partition bounds. They are expressed as the optimum value of linear programs. For communication complexity we show that the partition bound is stronger than both the rectangle/corruption bound and the γ2/generalized discrepancy bounds. In the model of query complexity we show that the partition bound is stronger than the approximate polynomial degree and classical adversary bounds. We also exhibit an example where the partition bound is quadratically larger than the approximate polynomial degree and adversary bounds.