Assume a system with four states Si, S2, S3, and S4 with rewards of Ri, R2, R3, and R4, respectively. There are three possible actions a, a2, and a3 from each state. Use the system to answer the following question about reinforcement learning: What is a policy? (а) (b) (c) What is a Q-function (in Q learning), and how is it related to the policy? Assume that the episode below is executed: SI > (action az) → S4 (action a1) S3 Which Q values are updated after this episode? What are their new values? You can assume the original Q values are all zero. Use a and y to represent the learning rate and discount factor, respectively. What is the effect of the discount factor in general? (d)

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
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Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Assume a system with four states S1, S2, S3, and S4 with rewards of R1, R2, R3, and R4,
respectively. There are three possible actions ai, a2, and az from each state. Use the system to
answer the following question about reinforcement learning:
What is a policy?
2.
(а)
(b)
What is a Q-function (in Q learning), and how is it related to the policy?
Assume that the episode below is executed:
Si > (action az) → S4 → (action a1) → S3
Which Q values are updated after this episode? What are their new values? You can assume the
original Q values are all zero. Use a and y to represent the learning rate and discount factor,
respectively.
What is the effect of the discount factor in general?
(c)
(d)
Transcribed Image Text:Assume a system with four states S1, S2, S3, and S4 with rewards of R1, R2, R3, and R4, respectively. There are three possible actions ai, a2, and az from each state. Use the system to answer the following question about reinforcement learning: What is a policy? 2. (а) (b) What is a Q-function (in Q learning), and how is it related to the policy? Assume that the episode below is executed: Si > (action az) → S4 → (action a1) → S3 Which Q values are updated after this episode? What are their new values? You can assume the original Q values are all zero. Use a and y to represent the learning rate and discount factor, respectively. What is the effect of the discount factor in general? (c) (d)
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