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What is a percept sequence?

  • A.The sequence of states that the environment has passed through
  • B.The complete history of everything the agent has perceived
  • C.The single most recent observation the agent has received
  • D.The ordered list of actions the agent intends to perform

Answer: B

The percept sequence is everything the agent has perceived to date, and in principle an agent's action is a function of it. A reflex agent uses only its last element, while a model based agent summarises the rest into internal state. The list of intended actions is a plan, and the environment's history is not directly available. Defining behaviour as a function of the whole history is what makes the framework fully general before any architecture is chosen.

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