Directory

Encyclopedia

NodeWorks
                              ENCYCLOPEDIA

Link Checker

Home
Encyclopedia : Z : ZI : ZIP :

Zipf-Mandelbrot law

 

Zipf-Mandelbrot law

The Zipf-Mandelbrot law (also known as the Pareto-Zipf law)
is a power-law distribution on ranked data, named after the Harvard linguistics professor George Kingsley Zipf (1902-1950)
who suggested regularity in texts, and the mathematician Benoit Mandelbrot (born November 20, 1924), who generalized it.

The distribution of words ranked by their frequency in a random corpus of text is generally a power-law distribution, known
as Zipf's law.

If one plots the frequency rank of words contained in a large
corpus of text data versus the number of occurrences or actual
frequencies, one obtains a power-law distribution,
with exponent close to one (but see Gelbukh and Sidoro 2001).

External links

  • Z. K. Silagadze: Citations and the Zipf-Mandelbrot's law
  • NIST: Zipf's law
  • W. Li's References on Zipf's law
    ----

  • NodeWorks boosts web surfing!
    Page Returned in 0.349 seconds - HTML Compressed 70.9%

    This article is from Wikipedia. All text is available
    under the terms of the GNU Free Documentation License.
     GNU Free Documentation License
    © 2008 Chamas Enterprises Inc.