max_pool1d#

ivy.max_pool1d(x, kernel, strides, padding, /, *, data_format='NWC', out=None)[source]#

Compute a 1-D max pool given 3-D input x.

Parameters:

x (Union[Array, NativeArray]) – Input image [batch_size, w, d_in].
kernel (Union[int, Tuple[int]]) – Size of the kernel i.e., the sliding window for each dimension of input. [w].
strides (Union[int, Tuple[int]]) – The stride of the sliding window for each dimension of input.
padding (str) – SAME” or “VALID” indicating the algorithm, or list indicating the per-dimension paddings.
data_format (str) – NWC” or “NCW”. Defaults to “NWC”. (default: 'NWC')
out (Optional[Array]) – optional output array, for writing the result to. (default: None)

Return type:

Array

Returns:

ret – The result of the pooling operation.
Both the description and the type hints above assumes an array input
for simplicity, but this function is *nestable, and therefore*
also accepts ivy.Container instances in place of any of
the arguments.

Examples

>>> x = ivy.arange(0, 24.).reshape((2, 3, 4))
>>> print(ivy.max_pool1d(x, 2, 2, 'SAME'))
ivy.array([[[ 4.,  5.,  6.,  7.],
        [ 8.,  9., 10., 11.]],

[[16., 17., 18., 19.],
[20., 21., 22., 23.]]])

>>> x = ivy.arange(0, 24.).reshape((2, 3, 4))
>>> print(ivy.max_pool1d(x, 2, 2, 'VALID'))
ivy.array([[[ 4.,  5.,  6.,  7.]],

[[16., 17., 18., 19.]]])

Array.max_pool1d(self, kernel, strides, padding, /, *, data_format='NWC', out=None)#

ivy.Array instance method variant of ivy.max_pool1d. This method simply wraps the function, and so the docstring for ivy.max_pool1d also applies to this method with minimal changes.

Parameters:

self (Array) – Input image [batch_size,w,d_in].
kernel (Union[int, Tuple[int]]) – The size of the window for each dimension of the input tensor.
strides (Union[int, Tuple[int]]) – The stride of the sliding window for each dimension of input.
padding (str) – “SAME” or “VALID” indicating the algorithm, or list indicating the per-dimension paddings.
data_format (str) – “NWC” or “NCW”. Defaults to “NWC”. (default: 'NWC')
out (Optional[Array]) – optional output array, for writing the result to. It must have a shape that (default: None) the inputs broadcast to.

Return type:

Array

Returns:

ret – The result of the max pooling operation.

Examples

>>> x = ivy.arange(0, 24.).reshape((2, 3, 4))
>>> print(x.max_pool1d(2, 2, 'SAME'))
ivy.array([[[ 4.,  5.,  6.,  7.],
        [ 8.,  9., 10., 11.]],
       [[16., 17., 18., 19.],
        [20., 21., 22., 23.]]])
>>> x = ivy.arange(0, 24.).reshape((2, 3, 4))
>>> print(x.max_pool1d(2, 2, 'VALID'))
ivy.array([[[ 4.,  5.,  6.,  7.]],
   [[16., 17., 18., 19.]]])

Container.max_pool1d(self, kernel, strides, padding, /, *, data_format='NWC', key_chains=None, to_apply=True, prune_unapplied=False, map_sequences=False, out=None)#

ivy.Container instance method variant of ivy.max_pool1d. This method simply wraps the function, and so the docstring for ivy.max_pool1d also applies to this method with minimal changes.

Parameters:

self (Container) – Container of input images [batch_size, w, d_in].
kernel (Union[int, Tuple[int]]) – Size of the kernel i.e., the sliding window for each dimension of input. [w].
strides (Union[int, Tuple[int]]) – The stride of the sliding window for each dimension of input.
padding (str) – SAME” or “VALID” indicating the algorithm, or list indicating the per-dimension paddings.
data_format (str) – NWC” or “NCW”. Defaults to “NWC”. (default: 'NWC')
out (Optional[Container]) – optional output array, for writing the result to. (default: None)

Return type:

Container

Returns:

ret – The result of the pooling operation.

Examples

>>> a = ivy.arange(12.).reshape((2,2,3))
>>> b = ivy.arange(24.).reshape((2,3,4))
>>> x = ivy.Container({'a': a, 'b': b})
>>> print(x.max_pool1d(2, 2, "VALID"))
{
    a: ivy.array([[[3., 4., 5.]],
                  [[9., 10., 11.]]]),
    b: ivy.array([[[4., 5., 6., 7.]],
                  [[16., 17., 18., 19.]]])
}