“…The work on Clint is related to the work on versionspaces (Mitchell, 1982), learning apprentices (Kodratoff & Tecuci, 1987;Tecuci & Kodratoff, 1990), explanation based learning (Mitchell, Keller & Kedar-Cabelli, 1986;De Jong & Mooney, 1986), experimentation (Subramanian & Feigenbaum, 1986;Sammut & Banerji, 1986;Krawchuk & Witten, 1988), indirect relevance (Buntine, 1987), identification in the limit and debugging (Shapiro, 1983), shift of bias (Utgoff & Mitchell, 1982;Utgoff, 1986), and inductive logic programming (Muggleton & Buntine, 1988;Muggleton & Feng, 1990;Rouveirol & Puget, 1989;Quinlan, 1990). …”