Based on the study of the current two methods—interpretation and compilation—for the integration of logic programming and relational database,a new precompilation-based interpretive approach is proposed.It inherits ...Based on the study of the current two methods—interpretation and compilation—for the integration of logic programming and relational database,a new precompilation-based interpretive approach is proposed.It inherits the advantages of both methods,but overcomes the drawbacks of theirs.A new integrated system based on this approach is presented,which has been implemented on Micro VAX Ⅱ and applied to practise as the kernel of the GKBMS knowledge base management system.Also discussed are the key implementation techniques,including the coupling of logic and relational database systems,the compound of logic and relational database languages,the partial evaluation and static optimization of user's programs,fact scheduling and version management in problem-solving.展开更多
A method is presented for incrementally computing success patterns of logic programs. The set of success patterns of a logic program with respect to an abstraction is formulated as the success set of an equational log...A method is presented for incrementally computing success patterns of logic programs. The set of success patterns of a logic program with respect to an abstraction is formulated as the success set of an equational logic program modulo an equality theory that is induced by the abstraction. The method is exemplified via depth and stump abstractions. Also presented are algorithms for computing most general unifiers modulo equality theories induced by depth and stump abstractions.展开更多
提出了基于抽象解释框架自动合成数组程序不变式的方法,它能够分析按照特定顺序访问一维或者多维数组的程序,然后合成不变式.该方法将性质(包括区间全称量词性质和原子性质)集合作为抽象域,通过前向迭代数据流分析合成数组性质.证明了...提出了基于抽象解释框架自动合成数组程序不变式的方法,它能够分析按照特定顺序访问一维或者多维数组的程序,然后合成不变式.该方法将性质(包括区间全称量词性质和原子性质)集合作为抽象域,通过前向迭代数据流分析合成数组性质.证明了该方法的正确性和收敛性,并通过一些实例展示了该方法的灵活性.开发了一种原型工具,该工具在各种数组程序(包括competition on software verification中的array-examples benchmark)上的实验展示了方法的可行性和有效性.展开更多
文摘Based on the study of the current two methods—interpretation and compilation—for the integration of logic programming and relational database,a new precompilation-based interpretive approach is proposed.It inherits the advantages of both methods,but overcomes the drawbacks of theirs.A new integrated system based on this approach is presented,which has been implemented on Micro VAX Ⅱ and applied to practise as the kernel of the GKBMS knowledge base management system.Also discussed are the key implementation techniques,including the coupling of logic and relational database systems,the compound of logic and relational database languages,the partial evaluation and static optimization of user's programs,fact scheduling and version management in problem-solving.
文摘A method is presented for incrementally computing success patterns of logic programs. The set of success patterns of a logic program with respect to an abstraction is formulated as the success set of an equational logic program modulo an equality theory that is induced by the abstraction. The method is exemplified via depth and stump abstractions. Also presented are algorithms for computing most general unifiers modulo equality theories induced by depth and stump abstractions.
文摘提出了基于抽象解释框架自动合成数组程序不变式的方法,它能够分析按照特定顺序访问一维或者多维数组的程序,然后合成不变式.该方法将性质(包括区间全称量词性质和原子性质)集合作为抽象域,通过前向迭代数据流分析合成数组性质.证明了该方法的正确性和收敛性,并通过一些实例展示了该方法的灵活性.开发了一种原型工具,该工具在各种数组程序(包括competition on software verification中的array-examples benchmark)上的实验展示了方法的可行性和有效性.
