Performs fractional average pooling on the input.
tf.raw_ops.FractionalAvgPool( value, pooling_ratio, pseudo_random=False, overlapping=False, deterministic=False, seed=0, seed2=0, name=None )
Fractional average pooling is similar to Fractional max pooling in the pooling region generation step. The only difference is that after pooling regions are generated, a mean operation is performed instead of a max operation in each pooling region.
Args | |
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value | A Tensor . Must be one of the following types: float32 , float64 , int32 , int64 . 4-D with shape [batch, height, width, channels] . |
pooling_ratio | A list of floats that has length >= 4 . Pooling ratio for each dimension of value , currently only supports row and col dimension and should be >= 1.0. For example, a valid pooling ratio looks like [1.0, 1.44, 1.73, 1.0]. The first and last elements must be 1.0 because we don't allow pooling on batch and channels dimensions. 1.44 and 1.73 are pooling ratio on height and width dimensions respectively. |
pseudo_random | An optional bool . Defaults to False . When set to True, generates the pooling sequence in a pseudorandom fashion, otherwise, in a random fashion. Check paper Benjamin Graham, Fractional Max-Pooling for difference between pseudorandom and random. |
overlapping | An optional bool . Defaults to False . When set to True, it means when pooling, the values at the boundary of adjacent pooling cells are used by both cells. For example:
If the pooling sequence is [0, 2, 4], then 16, at index 2 will be used twice. The result would be [41/3, 26/3] for fractional avg pooling. |
deterministic | An optional bool . Defaults to False . When set to True, a fixed pooling region will be used when iterating over a FractionalAvgPool node in the computation graph. Mainly used in unit test to make FractionalAvgPool deterministic. |
seed | An optional int . Defaults to 0 . If either seed or seed2 are set to be non-zero, the random number generator is seeded by the given seed. Otherwise, it is seeded by a random seed. |
seed2 | An optional int . Defaults to 0 . An second seed to avoid seed collision. |
name | A name for the operation (optional). |
Returns | |
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A tuple of Tensor objects (output, row_pooling_sequence, col_pooling_sequence). | |
output | A Tensor . Has the same type as value . |
row_pooling_sequence | A Tensor of type int64 . |
col_pooling_sequence | A Tensor of type int64 . |
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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/FractionalAvgPool