Program Construction Method for Sequential Statistics Class Algorithm Based on Bidirectional Scanning Induction  

作　　者：ZUO Zhengkang WANG Yuekun LIANG Zanyang SU Wei HUANG Qing WANG Yuan WANG Changjing 

机构地区：[1]College of Computer Information Engineering,Jiangxi Normal University,Nanchang 330022,Jiangxi,China [2]College of Software,Jiangxi Normal University,Nanchang 330022,Jiangxi,China [3]Nanchang Government Service Data Administration,Nanchang 330038,Jiangxi,China

出　　处：《Wuhan University Journal of Natural Sciences》2023年第6期483-492,共10页武汉大学学报（自然科学英文版）

基　　金：Supported by the National Natural Science Foundation of China(62262031);the Jiangxi Provincial Natural Science Foundation(20232BAB202010);the Science and Technology Project of Education Department of Jiangxi Province(GJJ210307,GJJ2200302);the Cultivation Project for Academic and Technical Leader in Major Disciplines in Jiangxi Province(20232BCJ22013)。

摘　　要：The program construction process is based on rigorous mathematical reasoning,which leads to a fully correct algorithmic program via step-by-step refinement of the program specifications.The existing program construction methods'refinement process is partly based on individual subjective speculation and analysis,which lacks a precise guidance method.Meanwhile,efficiency factors have usually been ignored in the construction process,and most of the constructed abstract programs cannot be run directly by machines.In order to solve these problems,a novel program construction method for the sequence statistical class algorithms based on bidirectional scan induction is proposed in this paper.The method takes into account the efficiency factor and thus improves the Morgan's refinement calculus.Furthermore,this paper validates the method's feasibility using an efficiency-sensitive sequential statistics class algorithm as a program construction example.The method proposed in this paper realizes the correctness construction process from program specifications to efficient executable programs.

关 键 词：program construction bidirectional scanning induction sequential statistics Morgan's refinement calculus 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]