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THE UNIFICATION METHOD IN PROLOG SYSTEM

Iao H

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Abstract

This paper discusses the unification problem based on the computationmodel of stack A and stack B in a PROLOG system.The dynamic description of datastructure about substitution and environment is presented.Two algorithms of substitu-tion and unification are also given.According to the demand of the PROLOG system,the result of unification is ground most general unifior.In the algorithms,using environment and structure sharing techn logy,theefficioncy has been considerably promoted.

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What this paper is about

This paper discusses the unification problem based on the computationmodel of stack A and stack B in a PROLOG system.The dynamic description of datastructure about substitution and environment is presented.Two algorithms of substitu-tion and unification are also given.According to the demand of the PROLOG system,the result of unification is ground most general unifior.In the algorithms,using environment and structure sharing techn logy,theefficioncy has been considerably promoted.

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Available abstract

This paper discusses the unification problem based on the computationmodel of stack A and stack B in a PROLOG system.The dynamic description of datastructure about substitution and environment is presented.Two algorithms of substitu-tion and unification are also given.According to the demand of the PROLOG system,the result of unification is ground most general unifior.In the algorithms,using environment and structure sharing techn logy,theefficioncy has been considerably promoted.

Key concepts: Unification, Prolog, Computer science, Stack (abstract data type), Programming language, Theoretical computer science

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