Information Technology Reference
In-Depth Information
504 Advanced Artificial Intelligence
used in the real world and the community simulation, robots and intelligent
machinery, and other fields. In the real world survival, the agents need to face a
changing environment. In such an environment, agents not only maintain a
timely response to emergency situations, but also plan for the use of certain
short-term strategy. And then they are through the world and the other main
modeling to predict the future of the state, as well as through communication
language to realize cooperation or negotiation with other agents.
14.2.1
Rational agent
Bratman's Research on intention from philosophy generates broad impact to
artificial intelligence. He believes the balance between belief, desire and
intention can solve the problem effectively. In the open world, rational agents can
not be driven by intention; desire and their combination since there is belief
based intention exist between desire and planning. The reason is as follows:
(1) Agent actions are restricted limited resources. Once agents decide what to do,
they build a limited format commitment.
(2) In multi agent environment, agents need commitment to coordinate the
actions of agents. If there is no commitment, no actions are existent. Intention
is the choice of commitment.
In open and distributed environment, the actions of a rational agent are
restricted by intention. The intention is represented:
(1) If an agent wants to change its intention, it need reasons to do so;
(2) An agent can not insist on its unimportant intention without considering the
change of environment.
The main purpose of rational balance is to make a rational act in conformity
with the characteristics of the environment. The so-called characteristics of the
environment not only refers to the objective conditions, but also include
environmental factors in the social groups, such as social groups on the rational
judgement of the law. Bratman presented the intention - action principle: If A
take action B under the current intention is reasonable, then Agent A changes
intention to action. Action B is reasonable.
In the specific time, agent is show as follows:
