Which of the following is true for semi-dynamic environment?

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UGC NET Computer Science (Paper 2) Dec 2018 Paper
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  1. The environment itself does not change with the passage of time but the agent’s performance score does.
  2. The environment changes while the agent is deliberating.
  3. Even if the environment changes with the passage of time while deliberating, the performance score does not change.
  4. Environment and performance score, both changes simultaneously.

Answer (Detailed Solution Below)

Option 1 : The environment itself does not change with the passage of time but the agent’s performance score does.
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Detailed Solution

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Concept:

Agent: An agent is anything that can be viewed as perceiving its environment through sensors and acting upon that environment through actuators. Example: human agents, robotic agents etc.

Agent is also equal to architecture and program combination.

Explanation:

Factors that are considered in agents are its performance measure, environment, actuators, sensors.

  • Performance: safe, fast, legal, maximize profits.
  • Environment: Roads, pedestrians, customers
  • Actuators: steering wheel, accelerator, brake.
  • Sensors: Cameras, speedometer, GPS, keyboard.

Environment types: fully observable, deterministic, static, dynamic, single agent, semi dynamic.

  • Fully observable: It means to check everything is available to it via its sensors.
  • Deterministic: It depends only on current state and agent’s action.
  • Static: agent is deliberating over what to do
  • Dynamic: agent should consult the world when choosing actions
Semi-dynamic: If the environment itself does not change with the passage of time but the agent’s performance does.
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