Here is a small experiment to learn the XOR function with a neuronal network in vex : neuronal_network.hip
Here is few links for people interested in Neuronal Network :
I’m curently doing a Mooc in French about Deep Learning : https://www.fun-mooc.fr/courses/course-v1:CNAM+01031+session01/about
A nice article with a python code that work inside Houdini :