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respect to q, we set q to P(Z|X, θ) thus making D(q||P)=0. In the E-step, we maximise F with respect to q. Hence, we set q=P, thus after this step: After the E-step In the M-step, we maximise with respect to θ (as derived in the first section). M-step (we can ignore the 2nd term) We can ignore the