Performs beam search decoding on the logits given in input.

tf.raw_ops.CTCBeamSearchDecoder( inputs, sequence_length, beam_width, top_paths, merge_repeated=True, name=None )

A note about the attribute merge_repeated: For the beam search decoder, this means that if consecutive entries in a beam are the same, only the first of these is emitted. That is, when the top path is "A B B B B", "A B" is returned if merge_repeated = True but "A B B B B" is returned if merge_repeated = False.

Args | |
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`inputs` | A `Tensor` . Must be one of the following types: `float32` , `float64` . 3-D, shape: `(max_time x batch_size x num_classes)` , the logits. |

`sequence_length` | A `Tensor` of type `int32` . A vector containing sequence lengths, size `(batch)` . |

`beam_width` | An `int` that is `>= 1` . A scalar >= 0 (beam search beam width). |

`top_paths` | An `int` that is `>= 1` . A scalar >= 0, <= beam_width (controls output size). |

`merge_repeated` | An optional `bool` . Defaults to `True` . If true, merge repeated classes in output. |

`name` | A name for the operation (optional). |

Returns | |
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A tuple of `Tensor` objects (decoded_indices, decoded_values, decoded_shape, log_probability). | |

`decoded_indices` | A list of `top_paths` `Tensor` objects with type `int64` . |

`decoded_values` | A list of `top_paths` `Tensor` objects with type `int64` . |

`decoded_shape` | A list of `top_paths` `Tensor` objects with type `int64` . |

`log_probability` | A `Tensor` . Has the same type as `inputs` . |

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Licensed under the Creative Commons Attribution License 3.0.

Code samples licensed under the Apache 2.0 License.

https://www.tensorflow.org/versions/r2.4/api_docs/python/tf/raw_ops/CTCBeamSearchDecoder