tf.io.FixedLenSequenceFeature
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Configuration for parsing a variable-length input feature into a Tensor.
tf.io.FixedLenSequenceFeature(
shape, dtype, allow_missing=False, default_value=None
)
The resulting Tensor of parsing a single SequenceExample or Example has
a static shape of [None] + shape and the specified dtype.
The resulting Tensor of parsing a batch_size many Examples has
a static shape of [batch_size, None] + shape and the specified dtype.
The entries in the batch from different Examples will be padded with
default_value to the maximum length present in the batch.
To treat a sparse input as dense, provide allow_missing=True; otherwise,
the parse functions will fail on any examples missing this feature.
Fields |
|---|
shape
|
Shape of input data for dimension 2 and higher. First dimension is
of variable length None.
|
dtype
|
Data type of input.
|
allow_missing
|
Whether to allow this feature to be missing from a feature
list item. Is available only for parsing SequenceExample not for
parsing Examples.
|
default_value
|
Scalar value to be used to pad multiple Examples to their
maximum length. Irrelevant for parsing a single Example or
SequenceExample. Defaults to "" for dtype string and 0 otherwise
(optional).
|
Attributes |
|---|
shape
|
A namedtuple alias for field number 0
|
dtype
|
A namedtuple alias for field number 1
|
allow_missing
|
A namedtuple alias for field number 2
|
default_value
|
A namedtuple alias for field number 3
|
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Last updated 2024-04-26 UTC.
[null,null,["Last updated 2024-04-26 UTC."],[],[],null,["# tf.io.FixedLenSequenceFeature\n\n\u003cbr /\u003e\n\n|----------------------------------------------------------------------------------------------------------------------------------|\n| [View source on GitHub](https://github.com/tensorflow/tensorflow/blob/v2.16.1/tensorflow/python/ops/parsing_config.py#L318-L350) |\n\nConfiguration for parsing a variable-length input feature into a `Tensor`.\n\n#### View aliases\n\n\n**Compat aliases for migration**\n\nSee\n[Migration guide](https://www.tensorflow.org/guide/migrate) for\nmore details.\n\n[`tf.compat.v1.FixedLenSequenceFeature`](https://www.tensorflow.org/api_docs/python/tf/io/FixedLenSequenceFeature), [`tf.compat.v1.io.FixedLenSequenceFeature`](https://www.tensorflow.org/api_docs/python/tf/io/FixedLenSequenceFeature)\n\n\u003cbr /\u003e\n\n tf.io.FixedLenSequenceFeature(\n shape, dtype, allow_missing=False, default_value=None\n )\n\nThe resulting `Tensor` of parsing a single `SequenceExample` or `Example` has\na static `shape` of `[None] + shape` and the specified `dtype`.\nThe resulting `Tensor` of parsing a `batch_size` many `Example`s has\na static `shape` of `[batch_size, None] + shape` and the specified `dtype`.\nThe entries in the `batch` from different `Examples` will be padded with\n`default_value` to the maximum length present in the `batch`.\n\nTo treat a sparse input as dense, provide `allow_missing=True`; otherwise,\nthe parse functions will fail on any examples missing this feature.\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Fields ------ ||\n|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `shape` | Shape of input data for dimension 2 and higher. First dimension is of variable length `None`. |\n| `dtype` | Data type of input. |\n| `allow_missing` | Whether to allow this feature to be missing from a feature list item. Is available only for parsing `SequenceExample` not for parsing `Examples`. |\n| `default_value` | Scalar value to be used to pad multiple `Example`s to their maximum length. Irrelevant for parsing a single `Example` or `SequenceExample`. Defaults to \"\" for dtype string and 0 otherwise (optional). |\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Attributes ---------- ||\n|-----------------|-----------------------------------------|\n| `shape` | A `namedtuple` alias for field number 0 |\n| `dtype` | A `namedtuple` alias for field number 1 |\n| `allow_missing` | A `namedtuple` alias for field number 2 |\n| `default_value` | A `namedtuple` alias for field number 3 |\n\n\u003cbr /\u003e"]]
View source on GitHub