Outlier inspection method of county cultivated land quality evaluation results
A quality evaluation and inspection method technology, applied in data processing applications, instruments, calculations, etc., can solve the problems of failing to consider the influence of cultivated map spots, the rationality of inspection results, and low accuracy, so as to achieve easy implementation, accurate inspection, Simple operation effect
Inactive Publication Date: 2020-08-11
CHINA AGRI UNIV
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However, the current spatial autocorrelation technology only judges the selection of outliers based on a single variable (distance or adjacent relationship), and fails to consider the influence of cultivated land area on cultivated map spots, which leads to the rationality and accuracy of the test results. lower
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[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0044] figure 1 It shows a flow chart of a method for checking outliers of county cultivated land quality evaluation results according to an embodiment of the present invention. Such as figure 1 As shown, the method includes:
[0045] S1: Establish a spatial weight matrix under different preset threshold distances according to the spot area of each cultivated map i...
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The invention relates to a method for testing an abnormal value of a quality evaluation result of county cultivated land. The method comprises the steps of establishing spatial weight matrixes under different preset threshold distances according to cultivated land map spot areas in a county cultivated land quality evaluation result map and the different preset threshold distances; determining suspected abnormal value map spots of the county cultivated land quality evaluation result map according to the spatial weight matrixes under the different preset threshold distances; and making statistics on natural equal-index standard deviations of all county cultivated land map spots, determining abnormal value judgment standards according to the natural equal-index standard deviations, and judging that the suspected abnormal value map spots are deterministic abnormal value map spots or non-deterministic abnormal value map spots according to the abnormal value judgment standards. The method for testing the abnormal value of the quality evaluation result of the county cultivated land is simple in operation and easy to realize, and can quickly and accurately test the abnormal value of the quality evaluation result of the county cultivated land.
Description
technical field [0001] The invention relates to the field of survey and evaluation of cultivated land quality, in particular to a method for checking abnormal values of county-level cultivated land quality evaluation results. Background technique [0002] With the strengthening of cultivated land protection work in our country, the evaluation of cultivated land quality has become a normal work every year. The results of cultivated land quality evaluation have played an important role in land management such as the comprehensive production capacity accounting of cultivated land, the balance assessment of cultivated land occupation and compensation, the revision of overall land use planning, and the comprehensive improvement of land. Therefore, it is of great practical significance to test the rationality and accuracy of the cultivated land quality evaluation results. [0003] In the prior art, the outlier of the cultivated land quality evaluation results is mainly tested t...
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IPC IPC(8): G06Q50/02
CPCG06Q50/02
Inventor杨永侠王旭施彦如孙婷孟丹朱德海杨建宇汪念岳彦利
OwnerCHINA AGRI UNIV