6 Questions
Which of the following best describes a fully observable environment?
An environment where an agent can access the complete state of the environment at each point in time
Which of the following is a characteristic of a stochastic environment?
It is random in nature and cannot be completely determined by an agent
What is the difference between an episodic and sequential environment?
An episodic environment requires only the current percept for the action, while a sequential environment requires memory of past actions to determine the next best action
What is the difference between a deterministic and a stochastic environment?
A deterministic environment can be completely determined by an agent while a stochastic environment is random in nature
What is the difference between a static and a dynamic environment?
In a static environment, an agent's current state and selected action can completely determine the next state of the environment while in a dynamic environment, the environment can change itself while an agent is deliberating
What is the difference between a fully observable and a partially observable environment?
In a fully observable environment, an agent sensor can sense or access the complete state of an environment at each point of time while in a partially observable environment, an agent's sensor cannot
Study Notes
Environment Types in Reinforcement Learning
- A fully observable environment is one in which the agent has access to the complete state of the environment at any given time.
- A key characteristic of a stochastic environment is that the next state of the environment is uncertain, and the outcome of an action is not always the same.
- An episodic environment is one in which the agent's experience is divided into separate episodes, with no continuity between them, whereas a sequential environment is one in which the agent's experience is continuous.
- A deterministic environment is one in which the next state of the environment is entirely dependent on the current state and the agent's actions, whereas a stochastic environment is one in which the next state is uncertain.
- A static environment is one in which the environment does not change over time, whereas a dynamic environment is one in which the environment changes over time.
- In a fully observable environment, the agent has access to the complete state of the environment, whereas in a partially observable environment, the agent has access to only partial or incomplete information about the environment.
Test your knowledge on fully observable and partially observable environments with this quiz! Discover the key differences between them, and learn how an agent's sensor can affect its ability to sense the state of an environment. Understand why fully observable environments are easier to deal with, and explore what happens when an agent has no sensors in any environment. Challenge yourself and see how much you know about this important topic!
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