Sum over Posterior Predictive Distribution

I am confused about the posterior predictive distribution. This is from Murphy's Machine Learning: A Probabilistic Perspective. According to the example set in Chapter 3, the posterior predictive

machine learning - Sum over Posterior Predictive Distribution - Cross Validated Stack Internal Knowledge at work Bring the best of human thought and AI automation together at your work. Explore Stack Internal Sum over Posterior Predictive Distribution Ask Question Asked 10 years, 8 months ago Modified 10 years, 8 months ago Viewed 458 times 5 $\begingroup$ I am confused about the posterior predictive distribution. This is from Murphy's Machine Learning: A Probabilistic Perspective. According to the example set in Chapter 3, the posterior predictive distribution is: $$p(\tilde{x} \in C \mid D)

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