基于云理论的评估模型和方法

doi:10.12068/j.issn.1005-3026.2019.06.022

东北大学学报:自然科学版 ›› 2019, Vol. 40 ›› Issue (6): 881-885.DOI: 10.12068/j.issn.1005-3026.2019.06.022

基于云理论的评估模型和方法

梁力¹，邢观华¹，吴凤元²

(1. 东北大学资源与土木工程学院，辽宁沈阳110819; 2. 沈阳建筑大学土木工程学院，辽宁沈阳110168)

收稿日期:2018-03-04 修回日期:2018-03-04 出版日期:2019-06-15 发布日期:2019-06-14
通讯作者: 梁力
作者简介:梁力(1955-)，男，辽宁丹东人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51474048).

The Evaluation Model and Method Based on Cloud Theory

LIANG Li¹， XING Guan-hua¹， WU Feng-yuan²

1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. School of Civil Engineering， Shenyang Jianzhu University， Shenyang 110168， China.

Received:2018-03-04 Revised:2018-03-04 Online:2019-06-15 Published:2019-06-14
Contact: XING Guan-hua
About author:-
Supported by:
-

摘要/Abstract

摘要： 提出一种基于云理论的评估方法，首先利用程度分析法量化定性标度，并在此基础上建立评估标准的云模型.随后根据底层指标的实测值和专家评分计算云参数，并结合指标权重逐层向上进行云运算，得到评估样本的云参数.基于此生成大量样本点，代入评估标准的正向云发生器中计算确定度均值，作为最终评级的依据.相比之下，取评估样本期望计算确定度的方法没有考虑评估的不确定性，当评估不确定性较强时可能导致确定度的计算结果失真.最后以斜拉索耐久性评估为例，验证了方法的有效性和可操作性，为解决评估问题提供了一种更科学的手段.

关键词: 云理论, 云发生器, 确定度, 程度分析, 斜拉索耐久性

Abstract: An evaluation method based on cloud theory is proposed as follows: firstly， the degree analysis method is used to quantify the qualitative scales so that the cloud model of evaluation criteria can be established; then the index cloud parameters can be calculated according to the normalized measurement range and expert scores to obtain the cloud parameters of the evaluation samples by cloud computing according to the weight of the indexes from layer to layer; finally， a large number of sample points can be generated to calculate the mean value of certainty in the normal cloud generator to be the basis of the final rating. Compared with the evaluation method mentioned above， the certainty degree calculated from the value of expectation of samples can be distorted when there exists a lot of uncertainty. Taking the durability evaluation of stay cables as an example， the effectiveness and operability of the cloud theory method are verified， which proved to be a more scientific method for assessment problem.

Key words: cloud theory, cloud generator, certainty degree, degree analysis, durability of stay cables

中图分类号:

U448.1

梁力，邢观华，吴凤元. 基于云理论的评估模型和方法[J]. 东北大学学报:自然科学版, 2019, 40(6): 881-885.

LIANG Li， XING Guan-hua， WU Feng-yuan. The Evaluation Model and Method Based on Cloud Theory[J]. Journal of Northeastern University Natural Science, 2019, 40(6): 881-885.

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基于云理论的评估模型和方法

The Evaluation Model and Method Based on Cloud Theory

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