Linear-work greedy parallel approximate set cover and variants

  title={Linear-work greedy parallel approximate set cover and variants},
  author={Guy E. Blelloch and Richard Peng and Kanat Tangwongsan},
We present parallel greedy approximation algorithms for set cover and related problems. These algorithms build on an algorithm for solving a graph problem we formulate and study called Maximal Nearly Independent Set (MaNIS)---a graph abstraction of a key component in existing work on parallel set cover. We derive a randomized algorithm for MaNIS that has <i>O</i>(<i>m</i>) work and <i>O</i>(log<sup>2</sup> <i>m</i>) depth on input with <i>m</i> edges. Using MaNIS, we obtain RNC algorithms that… CONTINUE READING
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