Partially Observable Markov Decision Processes

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Output Policy Graph Format

This page describes the file format for a policy graph file output by the 'pomdp-solve' program.

Each line of the file represents one node of the policy graph and its contents are:

      N   A      Z1  Z2  Z3  ...

Here 'N' is a node ID giving the node a unique name. The 'A' is the action number defined for this node; it is an integer refering to the the POMDP file actions. These are followed by a list of node IDs, one for each observation. Thus the list will have a length equal to the number of observations in the POMDP. This list specifies the transitions in the policy graph. The n'th number in the list will be the index of the node that follows this one when the observation received is 'n'.


Last modified: Tue Oct 28 01:08:33 CST 2003