基于扩展相容性关系的通用证据模型建立过程

王壮; 郁文贤; 庄钊文; 胡卫东

基于扩展相容性关系的通用证据模型建立过程

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出版历程
- 收稿日期: 2002-07-25
- 修回日期: 2003-03-03
- 刊出日期: 2004-02-19

The Process of Founding a Generic Evidential Model Based on Extending Compatibility Relation

摘要

摘要: 证据建模已经成为当前制约DS证据理论广泛应用的一个瓶颈问题。Dempster(1967)基于在多值映射方面的工作，率先提出了相容性关系这一重要概念；Shafer(1976)根据这一概念，定义了信任函数(即证据模型)。本文通过扩展信任函数的相容性关系，探索性地描述了一个适用于各种不确定性的通用证据模型的建立过程。通用证据模型的建立过程与Appriou(1999)的证据模型1相比，物理意义更加明确，理论体系更加完整；与其他针对具体应用背景的证据建模方法相比，适用范围更加广泛。
- 证据建模; 相容性关系; 通用证据模型
Abstract: Evidence modeling has become a bottleneck problem of restricting the application of D-S evidence theory currently. Dempster(1967) firstly brought forward an important conceptcompatibility relation based on the research of multi-value mapping. Shafer(1985) defined basic probability assignment functionthe model of evidence based on the compatibility relation later. By extending compatibility relation of belief function, the process of founding a generic evidential model is described for kinds of uncertainty in this paper. Compared with Apprious(1999) first model, the physical meaning of the process of founding the generic evidential model is much more explicit and the system info is much more integrated. This process of modeling has wider range of application than other modeling methods of evidence.

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