A Species Sampling Model with Finitely many Types
classification
🧮 math.PR
keywords
typesfinitelymanymodelderiveddirichletdistributionexchangeable
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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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