in src/utils.py [0:0]
def squared_euclidean_distance(a, b):
b = tf.transpose(b)
a2 = tf.reduce_sum(tf.square(a), axis=1, keepdims=True)
b2 = tf.reduce_sum(tf.square(b), axis=0, keepdims=True)
ab = tf.matmul(a, b)
d = a2 - 2*ab + b2
return d