One-Pass Wavelet Decompositions of Data Streams

  • Authors:
  • Anna C. Gilbert;Yannis Kotidis;S. Muthukrishnan;Martin J. Strauss

  • Affiliations:
  • -;-;-;-

  • Venue:
  • IEEE Transactions on Knowledge and Data Engineering
  • Year:
  • 2003

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Abstract

We present techniques for computing small space representations of massive data streams. These are inspired by traditional wavelet-based approximations that consist of specific linear projections of the underlying data. We present general 驴sketch驴-based methods for capturing various linear projections and use them to provide pointwise and rangesum estimation of data streams. These methods use small amounts of space and per-item time while streaming through the data and provide accurate representation as our experiments with real data streams show.