utils.py 文件源码

def max_pooling(matrix, pool_size):
    """
    Applies max-pooling for the given matrix for specified pool_size.
        Only the maximum value in the given pool size is chosen to construct the result.

    :param matrix: Input matrix
    :param pool_size: pooling cell size
    :return: max-pooled output
    """
    """
    t_input = tensor.dmatrix('input')

    pool_out = ds.max_pool_2d(t_input, pool_size, ignore_border=True)
    pool_f = theano.function([t_input], pool_out)

    return pool_f(matrix)
    """
    pass