A Species Sampling Model with Finitely Many Types

Alexander Gnedin (Utrecht University)

Abstract


A two-parameter family of exchangeable partitions with a simple updating rule is introduced. The partition is identified with a randomized version of a standard symmetric Dirichlet species-sampling model with finitely many types. A power-like distribution for the number of types is derived.

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Pages: 79-88

Publication Date: February 7, 2010

DOI: 10.1214/ECP.v15-1532

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