The index m in finite mixture models, as in Eq. (12.1), can be extended to be a
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The index m in finite mixture models, as in Eq. (12.1), can be extended to be a continuous variable y 2 R:
This is called an infinite mixture model if ¯
w¹yº dy = 1 and ¯
p¹x j , yº dx = 1 (8, y) hold. Extend the EM algorithm to the infinite mixture models:
a. Define the auxiliary function for an infinite mixture model.
b. Design the E-step and M-step for an infinite mixture model.
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Related Book For
Machine Learning Fundamentals A Concise Introduction
ISBN: 9781108940023
1st Edition
Authors: Hui Jiang
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