Machine Learning, Data Science, Statistics, Probability, Editors Pick.
P(X,Z|θ) would become P(X|Z,θ). However, the obvious problem is Z is not known at the start. To get around this, we compute P(Z|X,θ*) to provide a soft estimate of Z and take the expectation of the complete log-likelihood conditioned on Z|X,θ* to fill in Z. In other words, we condition the