基于网络的模型库结构表示方法研究

针对现有方法存在的不能表示复杂模型关系以及模型组合与求解自动化程度低的局限性,在对模型库结构表示方式进行比较的基础上,从而进一步分析并提出了数据类型广义匹配的概念,将其应用于模型连接的表示,给出了模型库的网络结构表示的定义及其构造方法。分析了模型组合及模型库必须考虑的元素,并用网络结构表示模型库中元素间的静态连接结构;给出了模型库网络结构的形式化定义,模型间的连接通过引入类型转换实现。从而简化模型之间连接,使模型的连接判断由类型匹配判断转化为模型与转换和转换与模型之间的类型相等性判别,而类型匹配操作则通过转换自动完成。并且在组合模型求解过程中,转换过程也会自动完成,提高了模型组合与求解的自动化。

Representation of Model Base Structure Based on Network

A MMS(Model Management System) is a computer system which aids in the organization,utilization,and execution of models for decision makers.Model Base structure is known as the important research area in MMS.The existing approaches for representing the model base structure are compared and their limitations,such as the lack of the ability of complex model relationship representation and the low automation level of the model composition and solution are also discussed.Then,a concept of data type generalized matching which can be used to represent the linkages of models in a model base is proposed.Bases on this concept,the structure of model base can be represented using network.After the formal definition of the representation was given,a construction algorithm was introduced.Analysis of the model portfolio and models base must consider the elements,use the structure of the network to express the elements of the static structure in model base and show the formal definition of the network structure in model case,the link of the models is achieved by converting.Thereby simplifying the model of the connection,this model links judge by the type of judgment into matching model and change and transformation model only with the same type of subcontracting other,and the type of operation match through automatic conversion completed.And the process of the combination model solving,conversion process will finish automatically and improve the automation of the model portfolio and sloving.