Research On Key Technologies Of E-Government System Data Elements Extraction And Formalization

As all levels of government and departments do not have a unified data elements standard to guide and regulate the construction of e-government system,it is inefficiently when e-government system carry out information processing,resource sharing,data exchange.On the basis of systematic analysis of the present situation of e-government system,this paper aims at the existing problems in e-government system,which is the irregular of the name,type and format of data elements and the confusion structure of data elements'value information tables and so on.It constructed the data elements standard for e-government system through the extraction and formalization of data elements,standardized the data in the system e-government system and achieved interoperability.The specific work is as follows:(1)Analyzed the data structure of e-government system.From the perspective of form data and business process data,this paper explored the network structure of e-government data in-depth,and then built a mesh model of e-government system data.(2)Proposed a mesh-based data elements cross-extraction method.Based on the data mesh model,this method combines the data elements breadth-first extraction algorithm based on form data and the data elements depth-first extraction algorithm based on business process data to realize the data elements extraction of e-government system.The feasibility of this method is demonstrated by the example of data related to e-government system.(3)Proposed a data elements formalization method based on semantic dimension.Through this method,the name of the data elements is regulated by the principle of compulsion.This method helps to realize the data elements in e-government system to maximize compliance with national standards.(4)Proposed a data elements formalization method based on information expansion.By the method of linear regression analysis,the range of range of data elements is predicted,and the data format of data elements is determined scientifically and rationally to make it meet the dual requirements of scalability and storage.(5)Proposed a data elements formalization method based on information storage.By using the related knowledge of graph theory,this method uses a directed graph optimization method to realize the distributed storage of the value information tables of data elements.This method reduces the redundancy of the system and improve the sharing rate of information.Using the data elements formalization method based on the semantic dimension,the data elements formalization method based on the information expansion and the data elements formalization method based on the information storage,combined with the relevant theories of standard compilation.The e-government system data elements standard system was constructed.It not only provides the direction for the standardization of e-government system,and improves the normative,interactive,storage and scalability of e-government system.But also serves as a benchmark for the construction of standards for other information systems and provides reference for solving similar problems.