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This is documentation for Rasa Open Source Documentation v2.0.x, which is no longer actively maintained.
For up-to-date documentation, see the latest version (2.3.x).

Version: 2.0.x

rasa.utils.tensorflow.model_data_utils

surface_attributes

surface_attributes(tracker_state_features: List[List[Dict[Text, List["Features"]]]]) -> Dict[Text, List[List[List["Features"]]]]

Restructure the input.

Arguments:

  • tracker_state_features - a dictionary of attributes (INTENT, TEXT, ACTION_NAME, ACTION_TEXT, ENTITIES, SLOTS, FORM) to a list of features for all dialogue turns in all training trackers

Returns:

A dictionary of attributes to a list of features for all dialogue turns and all training trackers.

create_zero_features

create_zero_features(tracker_features: List[List[List["Features"]]]) -> List["Features"]

Computes default feature values for an attribute;

Arguments:

  • tracker_features - list containing all feature values encountered in the dataset for an attribute;

convert_to_data_format

convert_to_data_format(tracker_state_features: Union[
List[List[Dict[Text, List["Features"]]]], List[Dict[Text, List["Features"]]]
], zero_state_features: Optional[Dict[Text, List["Features"]]] = None) -> Tuple[Data, Optional[Dict[Text, List["Features"]]]]

Converts the input into "Data" format.

Arguments:

  • tracker_state_features - a dictionary of attributes (INTENT, TEXT, ACTION_NAME, ACTION_TEXT, ENTITIES, SLOTS, FORM) to a list of features for all dialogue turns in all training trackers
  • zero_state_features - Contains default feature values for attributes

Returns:

Input in "Data" format and zero state features

map_tracker_features

map_tracker_features(tracker_features: List[List[List["Features"]]], zero_features: List["Features"]) -> Tuple[
List[np.ndarray],
Dict[Text, List[List["Features"]]],
Dict[Text, List[List["Features"]]],
]

Create masks for all attributes of the given features and split the features into sparse and dense features.

Arguments:

  • tracker_features - all features
  • zero_features - list of zero features

Returns:

  • a list of attribute masks
  • a map of attribute to dense features
  • a map of attribute to sparse features