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jBillou edited Waveform optimization.tex
over 9 years ago
Commit id: 5fa402b3aae7bac9023fce0d0878de05c5973034
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\end{equation}
In the context of our HMM the joint distribution $P(D,X|\Theta)$ is given by $\prod_i^N P(d_1^i,..,d_{T_i}^i ,x_i^1,..,x_{T_i}^1|\Theta) = \prod_i^N P(d_1^i,..,d_{T_i}^i|x_1^i,..,x_{T_i}^i,\Theta)P(x_1^i,..,x_{T_i}^i|\Theta)$. Here $P(d_1^i,..,d_{T_i}^i|x_1^i,..,x_{T_i}^i,\Theta)$ is the emission probability
for a given trace and is proportional to $\prod_t^{T_i} \exp[ -(d_t^i - m(x_t^i))^2]$.
The joint distribution of hidden states $P(X|D,\Theta)$ is given by $\prod_i^N P(x_1^i,..,x_{T_i}^i|d_1^i,..,d_{T_i}^i,\Theta)$.