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Efficient backward recursion for computing posterior probabilities
Efficient backward recursion for computing posterior probabilities
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机译:高效的后向递归计算后验概率
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摘要
A method and apparatus are provided that reduce the amount of memory needed to perform forward-backward recursion to identify posterior probabilities. Under the invention, a forward recursion is performed to identify forward recursion scores. The forward recursion scores are then used directly in a backward recursion to determine posterior probabilities for each state in a set of time frames. The usefulness of this invention is especially high when there is a large number of discrete states, such as when there are more than one set of discrete states in the model.
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