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Efficient publication of sparse data

  • US 9,251,216 B2
  • Filed: 05/19/2011
  • Issued: 02/02/2016
  • Est. Priority Date: 05/19/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • obtaining, at a computer executing a summarization engine, sparse data comprising a plurality of entries, wherein a majority of the plurality of entries comprise zero-valued entries, and wherein a minority of the plurality of entries comprise non-zero valued entries;

    modifying, by the computer, one of the non-zero valued entries to obtain a resulting value;

    determining, by the computer, that the resulting value satisfies a threshold;

    in response to determining that the resulting value satisfies the threshold, adding, by the computer, the resulting value to a data summary;

    sampling, by the computer, one of the zero-valued entries;

    adding, by the computer, the one of the zero-valued entries to the data summary; and

    publishing, by the computer, the data summary, wherein the data summary comprises an anonymized summary of the sparse data.

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