The PESI(I tllrobahilities, Expvrt Sysl.euls, I(uowledge, and htferent:e) system attempts t.¢, address sonic: of tl,e probh.ms in expert system oh.sign thr,,,gh the use of the Bayesian Knowledge, Base (Ill(B) representation. Knowlo:lge gathered fi’unt a domaio expert is placed into this framework am] iJd’ercncirtg t,nder uncertail,ty is performed ovt.,r it. ]lowever. by the l|al.ure of BKBs, no...