Homework 2 Problem 1. Games of Chance. Consider the following game tree, which has min (down triangle), max (up triangle) and expectation circle) nodes: Max Chance 0.6 0.4 0.5 Min XXX 0.5

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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6.1

Artificial Intelligence
Homework 2
Problem 1. Games of Chance.
Consider the following game tree, which has min (down triangle), max (up triangle) and expectation
(circle) nodes:
Max
Chance
0.6
0.4 0.5
0.5
Min
XXXX
8 10 3 4 -24 04
Figure 1: Game Tree
a) In figure 1, label each tree node with its value.
b) In figure 1, circle the edge associated with the optimal action at each choice point.
c) If we knew the values of the first six leaves (from left), would we need to evaluate the seventh
and eighth leaves? Why or why not?
d) Suppose the values of leaf nodes are known to be in the range [-10, 10], inclusive. Assume
that we evaluate the nodes from left to right in a depth first manner. Can we now avoid
expanding the whole tree? If so, why? Identify all nodes that would need to be evaluated.
Transcribed Image Text:Artificial Intelligence Homework 2 Problem 1. Games of Chance. Consider the following game tree, which has min (down triangle), max (up triangle) and expectation (circle) nodes: Max Chance 0.6 0.4 0.5 0.5 Min XXXX 8 10 3 4 -24 04 Figure 1: Game Tree a) In figure 1, label each tree node with its value. b) In figure 1, circle the edge associated with the optimal action at each choice point. c) If we knew the values of the first six leaves (from left), would we need to evaluate the seventh and eighth leaves? Why or why not? d) Suppose the values of leaf nodes are known to be in the range [-10, 10], inclusive. Assume that we evaluate the nodes from left to right in a depth first manner. Can we now avoid expanding the whole tree? If so, why? Identify all nodes that would need to be evaluated.
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