| 一种基于非封闭识别框架的改进证据推理方法 |
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| 引用本文： | 王程,王睿,王海平.一种基于非封闭识别框架的改进证据推理方法[J].空军工程大学学报,2009,10(1):74-78. |
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| 作者姓名： | 王程 王睿 王海平 |
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| 作者单位： | 王程,王睿,WANG Cheng,WANG Rui(空军工程大学,导弹学院,陕西,三原,713800);王海平,WANG Hai-ping(空军95876部队,甘肃,山丹,734100)
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| 摘 要： | 在证据融合推理时,由于系统中出现未知新命题和传感器收集的证据不可靠,使得Dempster组合规则不适用于冲突证据组合.为了有效地处理冲突证据,提出一种基于非封闭识别框架的改进证据推理方法.首先在封闭识别框架内增加一个表示新命题的集合,将封闭识别框架扩展为非封闭识别框架,给出新命题基本概率指派的赋值方法,然后给出非封闭识别框架下焦元的组合规则.在非封闭识别框架下,依据冲突焦元本身基本概率指派以及证据的可信度信息,将局部冲突在涉及冲突的焦元之间分配,最后通过实例结果表明,与封闭识别框架下的 Dempster组合规则结果相比,该方法可以有效识别出新命题.非封闭识别框架下的改进证据推理方法,可以通过在非封闭识别框架下,对新命题与已知证据及已知证据之间的两类冲突信息在局部分配,使最终证据推理结果向合理方向聚焦.
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| 关 键 词： | 证据理论 非封闭识别框架 冲突证据 |
A Modified Evidence Reasoning Method Based on Non-closed Frame of Discernment |
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| WANG Cheng,WANG Rui,WANG Hai-ping.A Modified Evidence Reasoning Method Based on Non-closed Frame of Discernment[J].Journal of Air Force Engineering University(Natural Science Edition),2009,10(1):74-78. |
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| Authors: | WANG Cheng WANG Rui WANG Hai-ping |
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| Institution: | 1.Missile Institute;Air Force Engineering University;Sanyuan 713800;Shaanxi;China;2.Unit 95876 of PLA;Shandan 734100;Gansu;China |
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| Abstract: | When evidences combine and fusion,because the unknown new propositions appear in system and the sensor gathered evidences are uncertain,the D-S combination rules are inapplicable for conflict evidence combination.In order to manage the conflict evidence effectively,a modified conflict evidence reasoning method based on non-closed frame of discernment is proposed.First,an aggregate denoting unknown new proposition is added in closed frame of discernment,then the closed frame of discernment is expanded to non... |
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| Keywords: | evidence theory non-closed frame of discernment conflict evidence |
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