Machine Learn (Pattern Recognition) using Accelerometer... (Unity/C#).

I'm trying to do something similar to Just Dance APP that uses accelerometer to find direction and speed of the movement... so... i see that the best way to do it is using Machine Learn to recognize patterns of movement... and compare to the "Perfect Base" of the dancer... but i'm have difficult understanding machine learn and how to apply it on c#/.net base (unity). i'm trying to use machine learn to make clone (for study purpose) of games like this...

• Just Dance (all of it). • Magic Touch: Wizard for Hire. • Impossible Draw.