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1 The Syntax and Semantics of A-Prolog In this section we give a numerical introduction to a knowledge representation talk to A-Prolog. The language will be used to illustrate legion( swear) of the supposed ideas of AI and at the same time run as a basic for the development of various applications. despite the informality of the language understanding of this material will take in accredited level of mathematical sophistication. Texas tech University knowledge rational representation Group 2 asserting(prenominal) Languages - basic idea A declarative program (DP) is a gathering of statements describing objects of a cosmos and their properties. Semantics de?nes a notion of a lay of a DP (i.e. a possible state of the worldly concern compatible with the DP statements) and characterizes the collection of valid consequences of a program. different tasks ar reduced to ?nding models or computing consequences of a DP. Models atomic tot up 18 found a nd/or consequences are computed by public innovation reasoning algorithms often called inference engines. Texas Tech University Knowledge original Group 3 Declarative Languages - basic speech Signature is a four-tuple ? = O, F, P, V of (disjoint) sets. Elements of O, F, P are called object, spot, and predicate signs (or constants) respectively.

Predicate constants are used to distinguish relations betwixt the empyreans objects, Each function and predicate symbol is associated with its arity - an integer indicating the number of symbols parameters. Normally, arity will be determined from the context. Elements of V are called (object) variables. Texas Tech University K nowledge Representation Group 4 Decla! rative Languages - basic terminology damage (over ?) are de?ned as follows: 1. Variables and object constants are term. 2. If t1, . . . , tn are terms and f ? F then f (t1, . . . , tn) is a term. price not containing variables are called ground. They are used to name the domains objects. Atom is an expression of the...If you want to get a intact essay, order it on our website: OrderEssay.net

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