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A Brief Recap
1. Al Agents
2.PEAS
3. Agent = Architecture + Programme
4,,Rational Agents (RAs)
5. Characteristics and Properties of RAs
6. Limitations of RAs
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Fully Observable vs. Partially Observable
If the sensors of the agent give their accesses to the
complete state of the environment at each point in ue,
then the environment is fully observable
-fully observable environments are expedient bapauce
the agent does not need to maintain any internal state
for keeping the track of the world
-for example: Chess
> An environment might be partially observable because of
noisy and inaccurate sensors or because parts of the
environment are simply missing from the sensor data.
-for example: Kriegspiel
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Deterministic vs. Stochastic
>If the next state of the environment is completely
determined by the current state and the action
executed by the agent, then the environment is
deterministic
-for example: Checkers
>If the next state of the environment is uncertain to
determined by the current state and the action
executed by the agent, then the environment is
Ā» stochastic. Or there is some randomness involved
- for example: Backgammon
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