Pooling
Pooling layers help with overfitting and improve performance by reducing the size of the input tensor. Typically, they are used to scale down the input, keeping important information. Pooling is a much faster mechanism for input size reduction compared with tf.nn.conv2d
.
The following pooling mechanisms are supported by TensorFlow:
- Average
- Max
- Max with argmax
Each pooling operation uses rectangular windows of size ksize
separated by offset strides
. If strides
are all ones (1, 1, 1, 1), every window is used; if strides
are all twos (1, 2, 2, 1), every other window is used in each dimension; and so on.
Max pool
The following defined function provides max pooling for the input 4D tensor tf.nn.max_pool
:
max_pool( value, ksize, strides, padding, data_format='NHWC', name=None )
The preceding arguments are explained here:
value
: This is the 4D tensor with shape [batch, height, width, channels], typetf.float32
on which max pooling needs to be done.ksize
: This is the list of ints that haslength...