Constructing optimal wavelet synopses

  • Authors:
  • Dimitris Sacharidis

  • Affiliations:
  • Knowledge and Database Systems Lab, School of Electrical and Computer Engineering, National Technical University of Athens, Athens, Greece

  • Venue:
  • EDBT'06 Proceedings of the 2006 international conference on Current Trends in Database Technology
  • Year:
  • 2006

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Abstract

The wavelet decomposition is a proven tool for constructing concise synopses of massive data sets and rapid changing data streams, which can be used to obtain fast approximate, with accuracy guarantees, answers. In this work we present a generic formulation for the problem of constructing optimal wavelet synopses under space constraints for various error metrics, both for static and streaming data sets. We explicitly associate existing work and categorize it according to the previous problem formulation and, further, we present our current work and identify its contributions in this context. Various interesting open problems are described and our future work directions are clearly stated.