基于差异信息量的多源数据融合方法

doi:10.12068/j.issn.1005-3026.2021.09.005

东北大学学报（自然科学版） ›› 2021, Vol. 42 ›› Issue (9): 1246-1253.DOI: 10.12068/j.issn.1005-3026.2021.09.005

基于差异信息量的多源数据融合方法

王姝，任玉，关展旭，王晶

(东北大学信息科学与工程学院，辽宁沈阳110819)

修回日期:2020-01-04 接受日期:2020-01-04 发布日期:2021-09-16
通讯作者: 王姝
作者简介:王姝(1979-)，女，辽宁沈阳人，东北大学副教授.
基金资助:
国家重点研发计划项目(2019YFE0105000); 矿冶过程自动控制技术国家(北京市)重点实验室开放课题(BGRIMM-KZSKL-2018-09).

Multi-source Data Fusion Method Based on Difference Information

WANG Shu， REN Yu， GUAN Zhan-xu， WANG Jing

School of Information Science & Engineering， Northeastern University， Shenyang 110819， China.

Revised:2020-01-04 Accepted:2020-01-04 Published:2021-09-16
Contact: WANG Shu
About author:-
Supported by:
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摘要/Abstract

摘要： D-S证据理论可应用于多源数据融合领域，但在处理高度冲突的证据时，可能会出现反直觉的结果.为解决这一问题，本文提出了差异信息量的概念及融合方法.首先，通过信息熵表明证据的相对重要性，采用散度获取证据可信度.然后利用证据可信度优化证据差异度以得到差异信息量，经过计算获取数据的最终权重，并将其作为D-S证据理论中的基本概率分配进行决策.在处理冲突证据、一致证据及不同数量证据等方面的数据融合问题时与其他方法对比，所提方法收敛更快，准确度更高.故障诊断的应用实例表明，所提方法的不确定性更小，优于现存的其他方法.

关键词: 差异信息量;D-S证据理论;多源数据;信息融合;决策

Abstract: D-S evidence theory can be applied to the field of multi-source data fusion. However， counter-intuitive results may come out when handing highly conflicting evidences. In order to solve this problem， a modified fusion method with the concept of difference information(DI)was proposed. First， information entropy indicated the relative importance of evidence， and divergence was used to obtain the credibility of evidence. Then， the evidence difference was optimized by the credibility of the evidence to obtain difference information(DI). The final weight of the calculated data was used as the basic probability distribution in D-S evidence theory for decision-making. Compared with other methods in dealing with conflicting evidence， consistent evidence， and different amounts of evidence， the proposed method converges faster and has higher accuracy. The application examples of fault diagnosis show that the proposed method has less uncertainty and is better than other existing methods.

Key words: difference information(DI); D-S evidence theory; multi-source data; information fusion; decision-making

中图分类号:

TP311
TP181

王姝，任玉，关展旭，王晶. 基于差异信息量的多源数据融合方法[J]. 东北大学学报（自然科学版）, 2021, 42(9): 1246-1253.

WANG Shu， REN Yu， GUAN Zhan-xu， WANG Jing. Multi-source Data Fusion Method Based on Difference Information[J]. Journal of Northeastern University(Natural Science), 2021, 42(9): 1246-1253.

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基于差异信息量的多源数据融合方法

Multi-source Data Fusion Method Based on Difference Information

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