HMMDecoder Syntax - Teradata Vantage

Machine Learning Engine Analytic Function Reference

Product
Teradata Vantage
Release Number
8.10
1.1
Published
October 2019
Language
English (United States)
Last Update
2019-12-31
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dita:id
B700-4003
lifecycle
previous
Product Category
Teradata Vantageā„¢

Version 1.9

SELECT * FROM HMMDecoder (
  ON init_prob_table AS InitialStateProbs PARTITION BY model_key [ ORDER BY model_key, state_key_column ] 
  ON trans_prob_table AS TransitionProbs PARTITION BY model_key 
  ON emission_prob_table AS EmissionProbs PARTITION BY model_key 
  ON observation_table AS ObservationTable PARTITION BY model_key 
    ORDER BY time_ordered_sequence_column ASC [,...]
  USING
  InitStateModelColumn ('model_column')
  InitStateColumn ('state_key_column')
  InitStateProbColumn ('init_state_probability')
  TransAttributeColumn ('model_column')
  TransFromStateColumn ('from_state_key_column')
  TransToStateColumn ('to_state_key_column')
  TransProbColumn ('trans_probability')
  EmitModelColumn ('model_column')
  EmitStateColumn ('state_key_column')
  EmitObsColumn ('observed_key_column')
  EmitProbColumn ('emit_probability')]
  ModelColumn ('model_column')
  SeqColumn ('seq_column')
  ObservationColumn ('observation_column')
  [ SequenceMaxSize ('range') ]
  [ SkipColumn ('skip_column') ]
  [ Accumulate ({ 'accumulate_column' | accumulate_column_range }[,...]) ]
) AS alias;