Research On Evaluation Method Of Data Quality Of Permanent Basic Farmland

The quality of the results data of the permanent basic farmland directly affects the quality and quantity of the permanent basic farmland,and determines the speed of the construction and management of the permanent basic farmland database.The data of the current permanent basic farmland data are inconsistent with the actual situation and the existing data description is not standardized;The current data quality evaluation method can not reflect the real situation of data quality well.Therefore,the establishment of a set of objective and practical data inspection and quality evaluation method has important practical significance.Relying on the permanent basic farmland delimitation and verification data of Ziyang in Sichuan province,this paper analyzes the source of data quality error,and studies the methods and characteristics of current data quality inspection and quality evaluation This paper discusses the application of intuitionistic fuzzy set-valued statistics method to the determination of the quality evaluation index elements,and uses the evaluation method based on interval intuitionistic fuzzy set theory as the method of evaluating the data quality in the permanent basic farmland.This paper designs and develops the data quality inspection system of the permanent basic farmland,realizes the automatic data check and improves the efficiency of data checking The system realizes the weighted average method of weighted correction and the evaluation method based on ii operator respectively,through the analysis of the two algorithms to verify the reliability of the method;Realize the batch modification function of common errors in data parts,improve the quality of data and save manpower;Realized the attribute data of check data automatically import database function,convenient user to carry on the analysis,statistics,query and so on the data.The data import system of the permanent basic farmland of Ziyang in Sichuan province is draw,the experimental results show that the data quality inspection system of the permanent basic farmland is running normally,and the data quality evaluation method based on ii operator can objectively and effectively reflect the data quality.