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tflite_support.task.text.TextEmbedder

Class that performs dense feature vector extraction on text.

tflite_support.task.text.TextEmbedder(
    options: tflite_support.task.text.TextEmbedderOptions,
    cpp_embedder: _CppTextEmbedder
) -> None

Attributes
`number_of_output_layers`	Gets the number of output layers of the model.
`options`

Attributes

number_of_output_layers Gets the number of output layers of the model.

options

cosine_similarity(
    u: tflite_support.task.processor.FeatureVector,
    v: tflite_support.task.processor.FeatureVector
) -> float

Computes cosine similarity [1] between two feature vectors.

@classmethod
create_from_file(
    file_path: str
) -> 'TextEmbedder'

Creates the TextEmbedder object from a TensorFlow Lite model.

Args
`file_path`	Path to the model.

Returns
`TextEmbedder` object that's created from the model file.

Raises
`ValueError`	If failed to create `TextEmbedder` object from the provided file such as invalid file.
`RuntimeError`	If other types of error occurred.

@classmethod
create_from_options(
    options: tflite_support.task.text.TextEmbedderOptions
) -> 'TextEmbedder'

Creates the TextEmbedder object from text embedder options.

Args
`options`	Options for the text embedder task.

Returns
`TextEmbedder` object that's created from `options`.

Raises
`ValueError`	If failed to create `TextEmbedder` object from `TextEmbedderOptions` such as missing the model.
`RuntimeError`	If other types of error occurred.

embed(
    text: str
) -> tflite_support.task.processor.EmbeddingResult

Performs actual feature vector extraction on the provided text.

Args
`text`	the input text, used to extract the feature vectors.

Returns
embedding result.

Raises
`ValueError`	If any of the input arguments is invalid.
`RuntimeError`	If failed to calculate the embedding vector.

get_embedding_dimension(
    output_index: int
) -> int

Gets the dimensionality of the embedding output.

Args
`output_index`	The output index of output layer.

Returns
Dimensionality of the embedding output by the output_index'th output layer. Returns -1 if `output_index` is out of bounds.