Package jazzparser :: Package taggers :: Package baseline2 :: Module tagger :: Class Baseline2Tagger

Class Baseline2Tagger

    object --+        
             |        
 tagger.Tagger --+    
                 |    
models.ModelTagger --+
                     |
                    Baseline2Tagger

The second of the simple baseline tagger models. This models unigram probabilities of tags, given only the intervals between chords.

Nested Classes

[hide private]

MODEL_CLASS
A class to encapsulate the model data for the tagger.

Instance Methods

[hide private]

__init__(self, grammar, input, options={}, *args, **kwargs)
The tagger must have reference to the grammar being used to parse the input. source code

get_signs_for_word(self, index, offset=0)

source code

get_word(self, index)
Returns the input word at this index.

source code

Inherited from tagger.Tagger: get_all_signs, get_signs, get_string_input, get_tag_probability, get_word_duration

Inherited from tagger.Tagger (private): _get_input_length, _get_name

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

Class Methods

[hide private]

Inherited from tagger.Tagger: check_options

Static Methods

[hide private]

Inherited from models.ModelTagger: partition_model_name

Class Variables

[hide private]

INPUT_TYPES = ['db', 'chords']
List of allowed input datatypes.

Inherited from models.ModelTagger: COMPATIBLE_FORMALISMS, TAGGER_OPTIONS

Inherited from tagger.Tagger: LEXICAL_PROBABILITY, shell_tools

Properties

[hide private]

Inherited from tagger.Tagger: input_length, name

Inherited from object: __class__

Method Details

[hide private]

init(self, grammar, input, options=`{}`, *args, **kwargs)
(Constructor)

source code

The tagger must have reference to the grammar being used to parse the input. It must also be given the full input when instantiated. The format of this input will depend on the tagger: for example, it might be a string or a MIDI file.

Parameters:

original_input - the input in its original, unprocessed form. This will usually be a string. This is optional, but in some circumstances things might fall apart if it hasn't been given. E.g. using a backoff model as backoff from a tagging model requires the original input to be passed to the backoff model.
logger - optional progress logger. Logging will be sent to this during initialization of the tagger and tagging. If not given, the logging will be lost. Subclasses may access the logger (or a dummy logger if none was given) in self.logger.

Overrides: object.__init__

(inherited documentation)

get_word(self, index)

source code

Returns the input word at this index. This does not need to be a string, but must have a sensible __str__, so that it can be converted to a readable string. The purpose of this is to provide a readable form of the input for the parser to store in derivation traces.

Overrides: tagger.Tagger.get_word: (inherited documentation)

Class Baseline2Tagger

__init__(self, grammar, input, options={}, *args, **kwargs) (Constructor)

get_word(self, index)

init(self, grammar, input, options=`{}`, *args, **kwargs)
(Constructor)