# tf.raw_ops.CTCBeamSearchDecoder

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Performs beam search decoding on the logits given in input.

#### View aliases


**Compat aliases for migration**

See
[Migration guide](https://www.tensorflow.org/guide/migrate) for
more details.

[`tf.compat.v1.raw_ops.CTCBeamSearchDecoder`](https://www.tensorflow.org/api_docs/python/tf/raw_ops/CTCBeamSearchDecoder)

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    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.

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| ## Args ||
|---|---|
| `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). |

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| ## Returns ||
|---|---|
| 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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