地理数据可用性评估模型的构建研究

Study on Construction of Geographical Data Usability Evaluation Model

在地理数据的使用过程中,由于共享性和安全性,要对地理数据进行处理,包括手工绘制,数据脱密等手段。此文针对处理后的地理数据和地理数据的脱密进行研究,分析了脱密处理对数据的影响,在此基础上构建了地理数据可用性评估模型。该模型从可视化效果、可靠性、有效性3个方面对处理后的地理数据进行评估并提出具体的二级指标来定量评估,实现了对地理数据可用性的综合评估及分级,并通过了实验验证。

In the process of using geographic data,due to sharing and security,it is necessary to process geographical data,including manual rendering,data decryption and other means and this paper studies the usability of processed geographic data.This paper studies the decryption of geographic data and geographic data,analyzes the effect of decryption on data,and on this basis,build a model to evaluate the usability of geographic data.The model evaluates the processed geographic data from three aspects of visualization effect,reliability and effectiveness,puts forward the specific secondary evaluation indicators to evaluate quantitatively,and carries out a comprehensive evaluation and classification of the usability of geographic data,which is verified by experiments.Through the usability evaluation model of this paper,we can comprehensively evaluate whether or not the geographic data after processing is available and data processing method(decryption algorithm)is reliable.