An improved combination rule in fault diagnosis based on dempster shafer theory

2008 ◽  
Author(s):  
Yong Deng ◽  
Dong Wang ◽  
Qi Li
Keyword(s):  
Fault Diagnosis ◽  
Combination Rule ◽  
Dempster Shafer Theory ◽  
Shafer Theory

scholarly journals Weighted Evidence Combination Rule Based on Evidence Distance and Uncertainty Measure: An Application in Fault Diagnosis

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Lei Chen ◽  
Ling Diao ◽  
Jun Sang
Keyword(s):  
Fault Diagnosis ◽  
Conflict Management ◽  
Information Fusion ◽  
Uncertainty Measure ◽  
Combination Rule ◽  
Rule Based ◽  
Dempster Shafer Theory ◽  
Evidence Combination ◽  
Weight Value ◽  
Shafer Theory

Conflict management in Dempster-Shafer theory (D-S theory) is a hot topic in information fusion. In this paper, a novel weighted evidence combination rule based on evidence distance and uncertainty measure is proposed. The proposed approach consists of two steps. First, the weight is determined based on the evidence distance. Then, the weight value obtained in first step is modified by taking advantage of uncertainty. Our proposed method can efficiently handle high conflicting evidences with better performance of convergence. A numerical example and an application based on sensor fusion in fault diagnosis are given to demonstrate the efficiency of our proposed method.

An intelligent fault diagnosis approach based on Dempster-Shafer theory for hydraulic valves

Measurement ◽  
2020 ◽  
Vol 165 ◽  
pp. 108129 ◽  
Author(s):  
Xiancheng Ji ◽  
Yan Ren ◽  
Hesheng Tang ◽  
Chong Shi ◽  
Jiawei Xiang
Keyword(s):  
Fault Diagnosis ◽  
Intelligent Fault Diagnosis ◽  
Dempster Shafer Theory ◽  
Shafer Theory ◽  
Hydraulic Valves ◽  
Diagnosis Approach

Research and Application of the Improved DST New Method Based on Fuzzy Consistent Matrix and the Weighted Average

2014 ◽  
Vol 1030-1032 ◽  
pp. 1764-1768 ◽  
Author(s):  
Wei Xiao Xu ◽  
Ji Wen Tan ◽  
Hong Zhan
Keyword(s):  
Fault Diagnosis ◽  
Evidence Synthesis ◽  
Weighted Average ◽  
Rolling Bearing ◽  
New Method ◽  
Cnc Machine ◽  
Bearing Fault Diagnosis ◽  
Dempster Shafer Theory ◽  
High Conflict ◽  
Shafer Theory

Aiming at the existing defects of evidence dempster-shafer theory (DST) in dealing with high conflict evidence, we proposed a new method to improve DST. By introducing concept of fuzzy consistent matrix, calculate the weights of factors, and put different sources of evidence into distinguish, and finally cast more than one vote to prevent the phenomenon, the average convergence of evidence. What’s more, the improved DST new method is applied to the rolling bearing fault diagnosis of CNC machine workbench .The test results show that the improved new synthetic formula increases the accuracy of fault diagnosis Ball, the conflict of evidence synthesis results better, to achieve better results.

One Fusion Approach of Fault Diagnosis Based on Rough Sets Theory and Dempster-Shafer Theory

2012 ◽  
Vol 241-244 ◽  
pp. 405-409 ◽  
Author(s):  
Yan Qin Su ◽  
Ji Hong Cheng ◽  
Ting Xue Xu
Keyword(s):  
Fault Diagnosis ◽  
Rough Sets ◽  
Decision Table ◽  
Combination Rules ◽  
Rough Sets Theory ◽  
Dempster Shafer Theory ◽  
Basic Probability ◽  
Shafer Theory ◽  
Sets Theory ◽  
Fusion Approach

There is the advantage of Rough Sets Theory for redundant condition reduction and D-S Theory for combination rules reasoning, one fusion approach based on the two theories was given. Firstly, the test data was discretizated and attribution reduced to get the reduction decision table. Then, the basic probability assignment was gotten through calculating the condition attribution of the decision table while the condition attribution was regarded as evidence input and the decision attribution as discernment frame. Finally, the evidence was combination reasoned and the fault diagnosis results were gotten, and the application example was verified its validity.

An integrated method of ANFIS and Dempster-Shafer theory for fault diagnosis of power transformer

2018 ◽  
Vol 25 (1) ◽  
pp. 360-371 ◽  
Author(s):  
Tusongjiang Kari ◽  
Wensheng Gao ◽  
Dongbo Zhao ◽  
Ziwei Zhang ◽  
Wenxiong Mo ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Power Transformer ◽  
Integrated Method ◽  
Dempster Shafer Theory ◽  
Shafer Theory
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