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 | |
---|---|
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). |