Forward–backward algorithm: Difference between revisions

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Finally, we will compute the smoothed probability values. These result alsoresults must also be scaled so that its entries sum to 1 because we did not scale the backward probabilities with the <math>c_t</math>'s found earlier. The backward probability vectors above thus actually represent the likelihood of each state at time t given the future observations. Because these vectors are proportional to the actual backward probabilities, the result has to be scaled an additional time.
 
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