We use AdaBoost to perform classification on 5 objects
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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Transcribed Image Text:We use AdaBoost to perform classification on 5 objects
(1) If first classifier f, classifies 2 objects incorrectly (classification error = 0.4). What
weight should be assigned to objects that were classified correctly and incorrectly,
respectively, such that, under the new weights, the performance of fi would be the
same as random (classification error = 0.5).
(2) Next, choose a second classifier f2, what is the classification error? What is the new
weight?
(3) Find a third classifier f3, what is the classification error? What is the new weight?
(4) Combine the three classifiers using AdaBoost. What is the final classifier H(x)? What is
the final error rate?
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