There are at least two projects using the name Inference. 1) A progressive / psychedelic / trance duo from Morelia, Mexico. They have released on Headstick Digital. Their Myspace is http://www.myspace.com/inferencemusic 2) Experimental dub techno producer Alistair Stray from Cambridge, UK; he is also in Radical Elsewhere duo. His free albums Reference and Resistance is Mutable were released on kreislauf label.