Weighted evidence combination based on degree of credibility and certainty
To overcome the invalidation problem of Dempster rule with high conflict,a weighted combination method based on degree of credibility and certainty was proposed.Firstly,the cosine similarity was modified to hold the ability to measure the evidence conflict when multi-subset focal elements were inclu...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2017-01-01
|
| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017010/ |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841539516568961024 |
|---|---|
| author | Lu WANG Qing-hua XING Yi-fan MAO |
| author_facet | Lu WANG Qing-hua XING Yi-fan MAO |
| author_sort | Lu WANG |
| collection | DOAJ |
| description | To overcome the invalidation problem of Dempster rule with high conflict,a weighted combination method based on degree of credibility and certainty was proposed.Firstly,the cosine similarity was modified to hold the ability to measure the evidence conflict when multi-subset focal elements were included,followed by the building of evidence credibility model.Secondly,the evidence certainty model based on precision and entropy was presented,which can both reflect the evidence’s degree of multi-subset focal elements and the dispersion degree of probability assignment.Then the weighted coefficient was determined by credibility and certainty.Finally,the normalized weighted coefficient was used to average the basic probability assignment,and the final combination result can be obtained according to Dempster rule.Numerical examples show that,compared with other traditional weighted combination methods,the proposed approach has made better performance in reducing conflict and accelerating convergence. |
| format | Article |
| id | doaj-art-7c1d8b485db84e4885b951b1cc7f44d8 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2017-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-7c1d8b485db84e4885b951b1cc7f44d82025-01-14T07:11:27ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2017-01-0138838859706611Weighted evidence combination based on degree of credibility and certaintyLu WANGQing-hua XINGYi-fan MAOTo overcome the invalidation problem of Dempster rule with high conflict,a weighted combination method based on degree of credibility and certainty was proposed.Firstly,the cosine similarity was modified to hold the ability to measure the evidence conflict when multi-subset focal elements were included,followed by the building of evidence credibility model.Secondly,the evidence certainty model based on precision and entropy was presented,which can both reflect the evidence’s degree of multi-subset focal elements and the dispersion degree of probability assignment.Then the weighted coefficient was determined by credibility and certainty.Finally,the normalized weighted coefficient was used to average the basic probability assignment,and the final combination result can be obtained according to Dempster rule.Numerical examples show that,compared with other traditional weighted combination methods,the proposed approach has made better performance in reducing conflict and accelerating convergence.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017010/combination of evidencescredibility degreecertainty degreeconflict measurementprecisionentropy |
| spellingShingle | Lu WANG Qing-hua XING Yi-fan MAO Weighted evidence combination based on degree of credibility and certainty Tongxin xuebao combination of evidences credibility degree certainty degree conflict measurement precision entropy |
| title | Weighted evidence combination based on degree of credibility and certainty |
| title_full | Weighted evidence combination based on degree of credibility and certainty |
| title_fullStr | Weighted evidence combination based on degree of credibility and certainty |
| title_full_unstemmed | Weighted evidence combination based on degree of credibility and certainty |
| title_short | Weighted evidence combination based on degree of credibility and certainty |
| title_sort | weighted evidence combination based on degree of credibility and certainty |
| topic | combination of evidences credibility degree certainty degree conflict measurement precision entropy |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017010/ |
| work_keys_str_mv | AT luwang weightedevidencecombinationbasedondegreeofcredibilityandcertainty AT qinghuaxing weightedevidencecombinationbasedondegreeofcredibilityandcertainty AT yifanmao weightedevidencecombinationbasedondegreeofcredibilityandcertainty |