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a) Compute a two-level decision tree using the greedy approach Use the classification error rate as the criterion for splitting. What is the overall error rate of the induced tree?

a) Compute a two-level decision tree using the greedy approach Use the classification error rate as the criterion for splitting. What is the overall error rate of the induced tree?

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Q2: Consider the following set of training examples. a) Compute a two-level decision tree using the greedy approach Use the classification error rate as the criterion for splitting. What is the overall error rate of the induced tree? b) Repeat part (a) using X as the first splitting attribute and then choose the best remaining attribute for splitting at each of the two successor nodes. What is the error rate of the induced tree! c) Compare the results of parts (a) and (b). Comment on the suitability of the greedy heuristic used for splitting attribute selection. XYZ No. of Class C1 Examples No. of Class C2 Examples 0 0 0 10 0 0 0 1 0 15 0 1 0 25 5 0 1 1 5 40 1 0 0 10 5 1 0 1 45 0 1 1 0 5 20 11 0 15
Transcribed Image Text:Q2: Consider the following set of training examples. a) Compute a two-level decision tree using the greedy approach Use the classification error rate as the criterion for splitting. What is the overall error rate of the induced tree? b) Repeat part (a) using X as the first splitting attribute and then choose the best remaining attribute for splitting at each of the two successor nodes. What is the error rate of the induced tree! c) Compare the results of parts (a) and (b). Comment on the suitability of the greedy heuristic used for splitting attribute selection. XYZ No. of Class C1 Examples No. of Class C2 Examples 0 0 0 10 0 0 0 1 0 15 0 1 0 25 5 0 1 1 5 40 1 0 0 10 5 1 0 1 45 0 1 1 0 5 20 11 0 15
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