Information Technology Reference
In-Depth Information
532 Advanced Artificial Intelligence
organization determines the layers of agents. Once agents received the plan
information from other agents, it must organize the information with the PGP
format. It also needs to check if there is new information including the
dependence to the inner plan. After then, they form logic components with the
sub plans. PGP consists of the following components:
(1) Goal. Goal includes the basic information, the reason for existent, long goal
and the comparable priority.
(2) Plan activity diagram. It includes other agents' tasks and their current states,
detailed plan, expected result and some experiments.
(3) Solution construction diagram. This diagram includes how the agents to
communicate and cooperate among agents. The size and time of the sent plan
are very important.
(4) State. State includes reporting PGP's whole important information, e.g. other
agents' plan and time mark.
PGP core planer is to analyze the information sent by other agents and
determine if they work for a same goal. PGP planer integrates the knowledge
through planning the activity diagram. It can forecast the behavior and result of
other agents. Plan activity diagram form the foundation of future work. Plan
activity compares the partial plan and new knowledge to create revised partial
plan. In this time, they create the solution construction diagram. PGP planner
generate revised partial plan as the final result. After the concrete plan is sent to
the specific agents, planer use the current knowledge about the whole system to
optimize and enrich the minutia.
There are many advantages to use the partial planner. The most important
advantage is high dynamic system behavior. All plans can adapt the environment
solution at any time and the whole system has high ability and effect. PGP can
identify the change of old plan. The system must send the revision to the node as
soon as possible since revision can inference their work. If any small revision
needs to send to the node, the whole system will be high load. In this condition,
PGP agree small inconsistent and only inform the big revisions. The system
developers must develop the fault tolerance system and designate a threshold to
indicate the revision is important. The second advantage is effective and avoiding
the redundancy. Two and more agents have the similar problems and register
their PGP, and reassign and construction. The work assignment is very effective.
