2016

Coresets and Sketches

Phillips, Jeff M.

Understand

Geometric data summarization has become an essential tool in both geometric approximation algorithms and where geometry intersects with big data problems.

  • In linear or near-linear time large data sets can be compressed into a summary, and then more intricate algorithms can be run on the summaries whose results approximate those of the full data set.
  • Coresets and sketches are the two most important classes of these summaries.
  • We survey five types of coresets and sketches: shape-fitting, density estimation, high-dimensional vectors, high-dimensional point sets / matrices, and clustering.

Reading the bibliography…