Dimension Independent Matrix Square using MapReduce

  title={Dimension Independent Matrix Square using MapReduce},
  author={Reza Bosagh Zadeh and Gunnar Carlsson},
We compute the singular values of an m × n tall and skinny (m n) sparse matrix A without dependence on m, for very large m. In particular, we give a simple nonadaptive sampling scheme where the singular values of A are estimated within relative error with high probability. Our proven bounds focus on the MapReduce framework, which has become the de facto tool for handling such large matrices that cannot be stored or even streamed through a single machine. On the way, we give a general method to… CONTINUE READING
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