There are many resources (CodeBase, Articles and Forum) on this site about Machine Learning. Even if they geared mostly towards EAs, plenty of the information can just as easily be applied to Indicators as well. Just make sure you fully understand how to make an Indicator properly first, before want to apply Machine Learning to them.
I would say that you already have your own example given then you already sell an Indicator based on Neural Networks, don't you think?
But that is elementary in terms of being a cluster as described. I am looking for more than just basics. I am not advanced and I am not looking for questions with questions. A simple "Yes, look here."