The research was centered in three institutions: Carnegie Mellon University, Stanford, and MIT, and as described below, each one developed its own style of research.
Umaɣ eqal jar fal karad hanan: Carnegie Mellon University, Stanford ad MIT, ad sund aleɣat dǎɣ ider, iyat kul tasijət alməɣnat iness ən umaɣ.