| Putting it Together |
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| • | Three
models |
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| – | language
bigram à P(word(i)|word(i-1)) |
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| – | word
pronunciation HMM à P(phones|word) |
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| – | phone
HMM à P(signal|phone) |
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| • | To
compute P(words|signal), these need to be |
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| combined. |
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| • | One
big HMM – make language bigram into an |
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| HMM
and construct a large HMM by nesting each |
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| level
of abstraction |
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