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Consider an HMM with an explicit final state w 0 , and a unique visible symbol v 0 for w 0 . The transition probabilities
Consider an HMM with an explicit final state w0, and a unique visible symbol v0 for w0. The transition probabilities are provided below along with emission probabilities. Assume that the index begins at 0 for the matrices.
aij =
1 | 0 | 0 | 0 |
0.2 | 0.3 | 0.1 | 0.4 |
0.2 | 0.5 | 0.2 | 0.1 |
0.8 | 0.1 | 0.0 | 0.1 |
bjk =
1 | 0 | 0 | 0 | 0 |
0 | 0.3 | 0.4 | 0.1 | 0.2 |
0 | 0.1 | 0.1 | 0.7 | 0.1 |
0 | 0.5 | 0.2 | 0.1 | 0.2 |
a. What is the most likely state sequence that generated v4 = {v1, v3, v2, v0}? Use HMM forward algorithm.
b. Given v4, what is the most likely sequence of hidden states?
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