Online Course Support | Practical Reinforcement Learning

What are the differences between model-free and model-based settings?

ByAdmin October 9, 2021October 9, 2021

In a model-based setting, we know nothing about environment dynamics. An agent is learning by optimizing some parametric model.

In a model-based setting, we can find out which (reward, next state) pairs are possible given current state and action.

In a model-free setting, we know nothing about environment dynamics. Optimization of agent decisions is based solely on sample-based experiences of the world.

Model-free learning requires probabilities of possible next states and rewards but does not require a sample model (aka simulator, aka generative model)

In a model-free setting, we know which (reward, next state) pairs are possible given current state and action.

——————————————————————————————–

For long episodes and very short planning time RP should be as fast as possible, TP can be much slower.

RP and TP are conflicting policies — the one that performs the best becomes the final result of planning.

Random RP is best, since improving the quality of RP may reduce the quality of MCTS planning.

MCTS is relatively insensitive to the quality of RP. So we can use random RP, but it is always better to make RP as good as possible.

For long episodes and short planning time TP should be as fast as possible, RP can be much slower.

Advertising with Facebook | Online Course Support

What is a valid reason that an ad would be rejected by Facebook?
ByAdmin August 12, 2021August 12, 2021

6. Question 6 What is a valid reason that an ad would be rejected by Facebook? 1 / 1 point The link to the landing pages included content that was relevant to…

Read More What is a valid reason that an ad would be rejected by Facebook?
Advertising and Society | Online Course Support

The lectures this week argue that the very finest American advertising at this point in time is that produced
ByAdmin August 22, 2021August 23, 2021

3. Question 3 The lectures this week argue that the very finest American advertising at this point in time is that produced 1 point a. for Budweiser b….

Read More The lectures this week argue that the very finest American advertising at this point in time is that produced
Advanced Competitive Strategy | Online Course Support

Which of the following statements are true?
ByAdmin September 5, 2021September 5, 2021

6. Question 6 Which of the following statements are true? 1 / 1 point A product-related diversification strategy is based on brand loyalty. That is true. A good example for…

Read More Which of the following statements are true?
Online Course Support | Social Impact Strategy: Tools for Entrepreneurs and Innovators

Identify the social enterprise (choose one)
ByAdmin August 17, 2021August 17, 2021

16. Question 16 Identify the social enterprise (choose one) 1 / 1 point Muhammed Yunus Microlending or microfinance The Grameen Bank Yes. Muhammed Yunus is the social entrepreneur, Microfinance is…

Read More Identify the social enterprise (choose one)
Corporate Strategy | Online Course Support

Based on the text below from Berkshire Hathaway’s annual report 2016, how would you describe Berkshire Hathaway Automotive Group, Inc.’s main business?
ByAdmin September 13, 2021September 13, 2021

1. Question 1 Based on the text below from Berkshire Hathaway’s annual report 2016, how would you describe Berkshire Hathaway Automotive Group, Inc.’s main business? Berkshire Hathaway, annual report 2016:…

Read More Based on the text below from Berkshire Hathaway’s annual report 2016, how would you describe Berkshire Hathaway Automotive Group, Inc.’s main business?
Data Warehouse Concepts, Design, and Data Integration | Online Course Support

The Source Currency dimension can be used as both a field in the Rows and Filters areas.
ByAdmin August 10, 2021August 10, 2021

12. Question 12 The Source Currency dimension can be used as both a field in the Rows and Filters areas. 1 point True False

Read More The Source Currency dimension can be used as both a field in the Rows and Filters areas.

Similar Posts