Do a search on this topic. It has already been covered before. No, artificial harmonics are nothing similar to pinch harmonics. They're completely different. Artificial harmonics are created anywhere on the fretboard by fretting with one hand while simultaneously using your index finger and thumb of your picking hand to touch the harmonic interval while plucking the string. If that doesn't make sense, it's because it's a rather hard concept to explain without visual aid. Point is, pinch harmonics and artificial harmonics are way different.