Can I read Understanding the Backward Algorithm on EtoBox?
Understanding the Backward Algorithm by Jessie Mangyao Nava is a document available to read on EtoBox.
What is Understanding the Backward Algorithm about?
The Backward algorithm allows us to calculate the posterior probability P(πi = k | x) that a hidden state k generated an observation at time step i, given the observed sequence x. It builds a dynamic programming matrix where each entry bk(i) is the probability of observing the portion of the sequence from time step i+1 to the end, given the hidden state at time i is k. The matrix is populated from right to left using a recurrence relation involving the transition and emission probabilities of the HMM.
- Author
- Jessie Mangyao Nava
- Language
- EN