7. Hidden Markov Models (Parte 2) (pdf, it, 413 KB, 4/28/10)
7. Hidden Markov Models (Parte 2) (pdf, it, 413 KB, 4/28/10)
7. Hidden Markov Models (Parte 2) (pdf, it, 413 KB, 4/28/10)
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Some open issues/research trends<br />
1. Model selection<br />
– how many states?<br />
– which topology?<br />
2. Extending standard models<br />
– modifying dependencies or components<br />
3. Injecting discriminative skills into HMM<br />
Extending standard models (1)<br />
First extension:<br />
adding novel dependencies between<br />
components, in order to model different<br />
behaviours<br />
Examples:<br />
– Input/Output HMM<br />
– Factorial HMM<br />
– Coupled HMM<br />
– ...<br />
66<br />
67<br />
<strong>10</strong>
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