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From: Alan Schwartz <[email protected]>
Newsgroups: comp.lang.perl.announce,comp.lang.perl.modules
Subject: ANNOUNCE: Decision::Markov 0.01
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Date: 26 Mar 1998 19:16:45 GMT
Organization: University of Illinois at Chicago
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I have just uploaded the Decision::Markov module, version 0.01 to
CPAN.

The suggested module list line is:
Name             DSLI  Description                                   Id
-------------    ----  --------------------------------------------  ------
Decision::Markov bdpO  Build/evaluate Markov models for decisions   ALANSZ

>From the README file:

Decision::Markov - Markov models for decision analysis

   Copyright (c) 1998 Alan Schwartz <[email protected]>. All rights reserved.
   This program is free software; you can redistribute it and/or modify it
   under the same terms as Perl itself.

DESCRIPTION
   This module provides functions used to built and evaluate Markov models
   for use in decision analysis. A Markov model consists of a set of
   states, each with an associated utility, and links between states
   representing the probability of moving from one node to the next. Nodes
   typically include links to themselves. Utilities and probabilities may
   be fixed or may be functions of the time in cycles since the model began
   running.

PREREQUISITES
   Decision::Markov expects to find some core perl modules, notably
   FileHandle and Carp.

INSTALLATION
   perl Makefile.PL
   make
   make test
   make install

REVISION HISTORY
   0.01    March 1988 - Initial concept.

FUTURE PLANS
   I'm planning to wire this up as the back end to CGI scripts for
   teaching Markov models using web-based simulations. Future revisions
   may include some other ways to display the model, and perhaps a
   Monte Carlo routine that will run the model X times and produce
   useful statistics (mean, variance, 95% CI, etc.)

   There may also be other Decision:: models in the future, such
   as Decision::Tree, Decision::Influence (influence diagrams),
   Decision::Utility (utility assessment) and Decision::Bayes
   (Bayesian updating of priors based on diagnostic tests).
   But I may not get to them soon. Feel free to get there before me!

--
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                      Alan Schwartz <[email protected]>
Asst. Prof. of Clinical Decision Making | University of Illinois at Chicago
Adj. Asst. Prof. of Psychology          | Department of Medical Education
  "Life is what happens to you while you're busy making other plans"
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