@ytyoun

A Fast Random Sampling Algorithm for Sparsifying Matrices

, , and . APPROX-RANDOM, volume 4110 of Lecture Notes in Computer Science, page 272-279. Springer, (2006)
DOI: 10.1007/11830924_26

Abstract

We describe a simple random-sampling based procedure for producing sparse matrix approximations. Our procedure and analysis are extremely simple: the analysis uses nothing more than the Chernoff-Hoeffding bounds. Despite the simplicity, the approximation is comparable and sometimes better than previous work. Our algorithm computes the sparse matrix approximation in a single pass over the data. Further, most of the entries in the output matrix are quantized, and can be succinctly represented by a bit vector, thus leading to much savings in space.

Links and resources

Tags

community

  • @dblp
  • @ytyoun
@ytyoun's tags highlighted