Artificial Intelligence, Volumen1McGraw-Hill, 1983 - 436 páginas What is artificial intelligence?; Problem solving; Problems and problem spaces; Basic problem-solving methods; Game playing; Knowledge representation; Knowledge representation using predicate logic; Knowledge representation using other logics; Structured representation of knowledge; Advanced topics; Advanced problem-solving systems; Natural language understanding; Perception; Learning; Implementing A.lI. systems: languages and machines; Conclusion; References; Index. |
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Página 176
... statement and the old knowledge . • It is not necessary to remember , for each statement that has been proved , the list of other statements on which the proof rests , since there is no danger of those statements disappearing ...
... statement and the old knowledge . • It is not necessary to remember , for each statement that has been proved , the list of other statements on which the proof rests , since there is no danger of those statements disappearing ...
Página 178
... statements when they no longer accurately describe the world , and to replace them by other , more accurate statements . This again leads to a nonmonotonic system in which statements can be deleted as well as added to the knowledge base ...
... statements when they no longer accurately describe the world , and to replace them by other , more accurate statements . This again leads to a nonmonotonic system in which statements can be deleted as well as added to the knowledge base ...
Página 180
... statement is deleted from the knowledge base , to go back over other statements whose proofs depend on the deleted state- ment and either eliminate them or find new proofs that are valid with respect to the current knowledge base ...
... statement is deleted from the knowledge base , to go back over other statements whose proofs depend on the deleted state- ment and either eliminate them or find new proofs that are valid with respect to the current knowledge base ...
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A.I. programs algorithm answer applied approach appropriate arcs ARMEMPTY backtracking best-first search blocks world branching factor breadth-first search Caesar Chapter chess clauses CLEAR(A complete concept conceptual dependency consider constraint contains database described discussed domain example expert systems exploit explore fact frame game tree given grammar graph heuristic function important input INTERLISP ISA links John knowledge representation labelings learning LISP Marcus match minimax move MTRANS MYCIN node objects ON(B operators parsing particular path performed possible preconditions predicate logic probabilistic problem problem-solving produce production systems PROLOG propositional logic question reasoning representing knowledge resolution rules satisfied script search procedure search process Section semantic net semantic nets sentence shown in Figure simple situation slots solution solve specific statements step strategy structure successors Suppose syntactic task techniques theorem things tion tree true understanding UNSTACK variable variety vertex