Fast Private Data Release Algorithms for Sparse Queries

  title={Fast Private Data Release Algorithms for Sparse Queries},
  author={Avrim Blum and Aaron Roth},
We revisit the problem of accurately answering large classe s of statistical queries while preserving differential privacy. Previous approaches to this problem have either been very general but have not had run-time polynomial in the size of the database, have applie d only to very limited classes of queries, or have relaxed the notion of worst-case error guarantees. I n this paper we consider the large class of sparsequeries, which take non-zero values on only polynomially ma ny universe… CONTINUE READING
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