pumpp.task.DynamicLabelTransformer¶
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class
pumpp.task.
DynamicLabelTransformer
(name, namespace, labels=None, sr=22050, hop_length=512, p_self=None, p_init=None, p_state=None)[source]¶ Time-series label transformer.
See also
Attributes: - name : str
The name of this transformer object
- namespace : str
The JAMS namespace for this task
- labels : list of str [optional]
The list of labels for this task.
If not provided, it will attempt to infer the label set from the namespace definition.
- sr : number > 0
The audio sampling rate
- hop_length : int > 0
The hop length for annotation frames
- p_self : None, float in (0, 1), or np.ndarray [shape=(n_labels,)]
Optional self-loop probability(ies), used for Viterbi decoding
- p_state : None or np.ndarray [shape=(n_labels,)]
Optional marginal probability for each class
- p_init : None or np.ndarray [shape=(n_labels,)]
Optional initial probability for each class
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__init__
(name, namespace, labels=None, sr=22050, hop_length=512, p_self=None, p_init=None, p_state=None)[source]¶ Initialize self. See help(type(self)) for accurate signature.
Methods
__init__
(name, namespace[, labels, sr, …])Initialize self. decode_events
(encoded[, transition, …])Decode labeled events into (time, value) pairs decode_intervals
(encoded[, duration, multi, …])Decode labeled intervals into (start, end, value) triples empty
(duration)Empty label annotations. encode_events
(duration, events, values[, dtype])Encode labeled events as a time-series matrix. encode_intervals
(duration, intervals, values)Encode labeled intervals as a time-series matrix. inverse
(encoded[, duration])Inverse transformation merge
(data)Merge an array of output dictionaries into a single dictionary with properly scoped names. pop
(field)register
(field, shape, dtype)Register a field as a tensor with specified shape and type. scope
(key)Apply the name scope to a key set_transition
(p_self)Set the transition matrix according to self-loop probabilities. transform
(jam[, query])Transform jam object to make data for this task transform_annotation
(ann, duration)Transform an annotation to dynamic label encoding.