This page is a brief overview of the development of the word sketch indices over time.


version 4 (released 2015)

  • fixed issues in indexing very small corpora
  • changes to score computations (documented here)

version 3 (released 2014; internal use only)

  • added commonest match indices
  • uses more compact index structure to reduce index size on large corpora

version 2 (released 2011)

  • added collocation positions indices

version 1 (released 2004)