Global pooling operations
GlobalMaxPooling1D(input_shape = NULL)GlobalAveragePooling1D(input_shape = NULL)
GlobalMaxPooling2D(data_format = NULL, input_shape = NULL)
GlobalAveragePooling2D(data_format = NULL, input_shape = NULL)
nD tensor with shape: `(batch_size, ..., input_dim)`. The most common situation would be a 2D input with shape `(batch_size, input_dim)`.
A string, one of channels_last (default) or channels_first
Chollet, Francois. 2015. Keras: Deep Learning library for Theano and TensorFlow.