nltk.HiddenMarkovModelTagger.log_probability¶
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HiddenMarkovModelTagger.
log_probability
(sequence)[source]¶ Returns the log-probability of the given symbol sequence. If the sequence is labelled, then returns the joint log-probability of the symbol, state sequence. Otherwise, uses the forward algorithm to find the log-probability over all label sequences.
Returns: the log-probability of the sequence Return type: float Parameters: sequence (Token) – the sequence of symbols which must contain the TEXT property, and optionally the TAG property