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What are the four components of a learning agent?

  • A.Perception, reasoning, planning and execution
  • B.Learning element, performance element, critic and problem generator
  • C.Sensors, actuators, memory and processor
  • D.Model, goal, utility function and policy

Answer: B

The learning element improves the performance element using feedback from the critic, while the problem generator suggests exploratory actions that may be informative though not immediately optimal. The fourth component is easily forgotten and is what prevents an agent from becoming stuck in a locally good habit. The other lists describe hardware, decision components and a processing pipeline. An explicit place for exploration in the architecture is the design's most instructive feature.

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