甚大规模对称性数据的管理瓶颈与研究策略

Bottleneck and Study Strategy of the Data Management on Very Large-scale of Symmetrical Information

为了大幅度地提高甚大规模对称矩阵的数据管理效率,以ITRF数据管理为例,分析了甚大规模对称矩阵的数据管理问题的迫切性和甚大规模对称矩阵的数据管理瓶颈及关键问题。提出先将对称矩阵从半结构化形式转换成全结构化且具有固定字段数的关系型表,再用扩展关系模型原理,建立对称—关系数据模型理论,从而建立基于对称—关系模型的数据库理论的全新思路和研究策略。建议将这种理论用于附甚大规模对称矩阵的ITRF成果数据集,以提高其数据管理效率。建立这种理论不仅有利于提高地理空间数据管理效率,也有利于精细农业规划方面的数据管理,建议加强甚大规模对称性数据管理在农业工程信息管理和精细农业工程建设方面的应用。

In order to improve its efficiency, using the case of the International Terrestrial Reference Frame （ITRF）, this paper discusses the data management method and the key problems attached the large-scale symmetrical matrices with the iaelp of a new idea and considers that the management of the large-scale symmetrical matrices is a bottleneck of the data management on ITRF. This paper also put forward the study strategy that symmetry-relationship model using extended relationship principles was first set up and the symmetrical matrices was converted into relationships, then symmetry-relationship database principles based on symmetry-relationship model was set up. The efficiency of the information management on ITRF would be improved by using the symmetry-relationship database principles. These principles are very useful to data management on the refinement agriculture.