id author title date pages extension mime words sentences flesch summary cache txt work_iefbp6no4fbardridq77a4czba Roy Lachman Expert systems: A cognitive science perspective 1989 10 .pdf application/pdf 8198 2194 73 MYCIN gave rise to EMYCIN and a shell technology that has radically reduced the development time and cost of expert systems. Expert systems are one type of knowledge-based system and as such unequivocally comprise a subfield of artificial intelligence (AI), which itself is a division of computer science. The knowledge, semantics, and intelligence of conventional programs are embedded in algorithms and distributed throughout combinations of procedures. knowledge-based systems, on the other hand, is primarily in the declarative expression of rules, semantic nets, Thus, anything that can be coded in the formalisms of expert systems can also be coded in conventional high-level computer languages, given enough When an advisory session between expert system and user is initiated, the inference engine determines what facts it needs to solve a problem, and either that represent the forwardand backward-chaining strategies for an identical rule base called DEMENTIA.RB are ./cache/work_iefbp6no4fbardridq77a4czba.pdf ./txt/work_iefbp6no4fbardridq77a4czba.txt