Project details for libstb

Logo libstb 1.6

by wbuntine - September 23, 2013, 05:36:08 CET [ Project Homepage BibTeX BibTeX for corresponding Paper Download ]

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This source directory contains library routines that provide alternative ways of computing generalised second order Stirling numbers used in working with Pitman-Yor and Dirichlet processes (PYP and DP). Included is library routines for posterior sampling on the discount and concentration parameters of the PYP/DP, and some simple demo scripts.

System used for Pitman-Yor processing with topic models, to allow easy scaling to gigabytes of text. Tested on a few versions on Ubuntu Linux and MacOSX. Requires the GSL (GNU Scientific Library) for polygamma functions.

Matching paper with some of the theory at, and a series of papers by Buntine and students.

Help and discussion forums at

Changes to previous version:

New call S_UV() allows faster computation for indicator sampling ala Chen, Du and Buntine ECML-PKDD 2011. Tagging of individual tables when multiple discounts are used in the one model.

BibTeX Entry: Download
Corresponding Paper BibTeX Entry: Download
Supported Operating Systems: Linux, Mac Os X
Data Formats: Agnostic
Tags: Library, Pitman Yor Process, Stirling Number
Archive: download here


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