int sfoba_backward

(smodel* smo, double* O, int T, double*** b,
  double** beta, const double* scale)

Backward-Algorithm.

Documentation

Backward-Algorithm. Calculates beta[t][i] given a double sequence and a model. Scale factors given as parameter (come from sfoba\_forward).

Parameters:

- smo model
O - sequence
T - length of sequence
- b matrix with precalculated output probabilities. May be NULL
beta - beta[t][i]
scale - scale factors

Returns:

0 for success, -1 for error

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