| 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,王新洲,李长春.基于梯形模糊数GIS产品的可靠性分析[J].延边大学理工学报,2005,0(3):88-90. |
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| 作者姓名： | 胡圣武 王新洲 李长春 |
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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 u,WANG Xin-zhou,LI Chang-chun.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 u WANG Xin-zhou LI Chang-chun |
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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 fuzzy
uncertainty of GIS products in the paper. In allusion to the problem, a new method is put forward for GIS product reliability
analysis 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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