Package jazzparser :: Package misc :: Package raphsto :: Class RaphstoHmmThreeChord

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Class RaphstoHmmThreeChord

                       object --+        
                                |        
utils.nltk.ngram.model.NgramModel --+    
                                    |    
                           RaphstoHmm --+
                                        |
                                       RaphstoHmmThreeChord

Modification of the Raphsto algorithm that allows it only to assign one of three chords: I, IV and V. They say that secondary dominants are treated using modulation, but in fact their model uses IIs, VIs, etc. This version forces these things to be handled using modulation.

Instance Methods

__init__(self, *args, **kwargs)
x.__init__(...) initializes x; see help(type(x)) for signature

source code

Inherited from RaphstoHmm: add_history, backoff_ngram, backward_log_probabilities, clear_cache, compute_gamma, compute_xi, delete, emission_log_probability, forward_log_probabilities, label, last_label_in_ngram, ngram_to_sequence, normal_backward_probabilities, normal_forward_probabilities, retrain_unsupervised, save, sequence_to_ngram, set_chord_transition_probabilities, to_picklable_dict, transition_log_probability

Inherited from RaphstoHmm (private): _get_my_filename

Inherited from utils.nltk.ngram.model.NgramModel: __repr__, backward_probabilities, decode_forward, decode_gamma, emission_probability, forward_backward_log_probabilities, forward_backward_probabilities, forward_probabilities, gamma_probabilities, generalized_viterbi, generate, get_all_ngrams, get_backoff_models, get_emission_matrix, get_transition_matrix, labeled_sequence_log_probability, normal_forward_backward_probabilities, precompute, transition_log_probability_debug, transition_probability, transition_probability_debug, viterbi_decode, viterbi_selector_probabilities

Inherited from utils.nltk.ngram.model.NgramModel (private): _get_model_type, _get_transition_backoff_scaler

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __str__, __subclasshook__

Class Methods

_get_model_dir(cls)

source code

Inherited from RaphstoHmm: from_picklable_dict, get_label_dom, initialize_chord_types, initialize_existing_model, list_models, load_model

Inherited from RaphstoHmm (private): _get_filename

Static Methods

Inherited from RaphstoHmm: get_trainer, train

Class Variables

Inherited from RaphstoHmm: LABEL_DOM, V

Properties

Inherited from RaphstoHmm (private): _filename

Inherited from utils.nltk.ngram.model.NgramModel: model_type

Inherited from object: __class__

Method Details

init(self, *args, **kwargs)
(Constructor)

x.__init__(...) initializes x; see help(type(x)) for signature

Overrides: object.__init__: (inherited documentation)

_get_model_dir(cls)
Class Method

Overrides: RaphstoHmm._get_model_dir