Question: We outlined a flawed procedure for finding the most likely state sequence, given an observation sequence. The procedure involves finding the most likely state at

We outlined a flawed procedure for finding the most likely state sequence, given an observation sequence. The procedure involves finding the most likely state at each time step, using smoothing, and returning the sequence composed of these slates. Show that, for some temporal probability models and observation sequences, this procedure returns an impossible state sequence (i.e., the posterior probability of the sequence is zero).

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