| 基于梯形模糊数GIS产品的可靠性分析 |
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| 引用本文： | 胡圣武1,王新洲2,李长春1. 基于梯形模糊数GIS产品的可靠性分析[J]. 延边大学学报(自然科学版), 2005, 0(3): 88-90 |
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| 作者姓名： | 胡圣武1 王新洲2 李长春1 |
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| 作者单位： | 1.河南理工大学测量工程系,河南焦作454100;2.武汉大学测绘学院,湖北武汉,430079 |
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| 摘 要： | 分析现有GIS产品的可靠性方法没有考虑GIS产品的模糊性,首次提出了一种基于梯形模糊数算术运算的可靠性分析方法,论述了GIS产品模糊可靠性分析的意义,简单介绍了梯形模糊数的基本概念和运算规则,阐述了梯形模糊数用于GIS产品可靠性分析的步骤,并用实例进行分析,最后总结并指出了需要解决的问题。结果表明,该方法可以较好地表达GIS产品的不确定性,而且计算也十分简单。
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| 关 键 词： | GIS产品 模糊性 梯形模糊数 模糊可靠性 可靠性分析 |
Reliability of GIS product based on trapezoid fuzzy number |
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| HU Sheng-w u1,WANG Xin-zhou2,LI Chang-chun1. Reliability of GIS product based on trapezoid fuzzy number[J]. Journal of Yanbian University (Natural Science), 2005, 0(3): 88-90 |
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| Authors: | HU Sheng-w u1 WANG Xin-zhou2 LI Chang-chun1 |
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| Affiliation: | 1.Department Surveying Engineering, Henan Polytechnic University, Jiaozuo 454100,China;2.School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China |
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| Abstract: | A bug is found out that existing methods for GIS product reliability analysis do not take into consideration of fuzzyuncertainty of GIS products in the paper. In allusion to the problem, a new method is put forward for GIS product reliabilityanalysis based on trapezoid fuzzy number mathematic operation. Firstly, the significance of GIS product fuzzy reliability a-nalysis is discussed. Then a brief introduction of the basic conception and algorithm about fuzzy trapezoid number is given.By a case study of fuzzy reliability analysis of GIS products, the approach and steps of this new method are expatiated. Fur-thermore, the problem to be solved is summarized. The results show that the method can be good at representing the uncer-tainty about GIS products, and is very simple in computation. |
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| Keywords: | GIS product fuzzy trapezoid fuzzy number fuzzy reliability reliability analysis |
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