| 层次化模糊Petri网:形式化定义和推理 |
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| 引用本文： | 潘洪军,孙吉贵,亓常松. 层次化模糊Petri网:形式化定义和推理[J]. 吉林大学学报(工学版), 2007, 37(1): 111-116 |
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| 作者姓名： | 潘洪军 孙吉贵 亓常松 |
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| 作者单位： | 吉林大学,计算机科学与技术学院,长春,130012;通化师范学院,计算机系,吉林,通化,134002;吉林大学,计算机科学与技术学院,长春,130012 |
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| 基金项目： | 国家自然科学基金 , 国家自然科学基金 , 吉林省科技发展计划 |
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| 摘 要： | 针对复杂知识库中知识规则数量多、知识规则的组织及其相互间的逻辑关系难以把握这一特点,在模糊Petri网的基础上给出了层次化模糊Petri网(Hierarchical Fuzzy PetriNets,HFPN)的形式化定义及其知识表示和知识推理。在HFPN中充分利用库所抽象、转换抽象实现了层次化的知识表示和知识推理。通过层次化,可以采用模块化方法设计知识系统,从而降低构建知识库的复杂性,方便知识库的优化和管理。
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| 关 键 词： | 计算机工程 知识库 模糊逻辑 层次化模糊Petri网 |
| 文章编号： | 1671-5497（2007）01-0111-06 |
| 收稿时间： | 2006-03-16 |
| 修稿时间： | 2006-03-16 |
Hierarchical fuzzy Petri nets: formal definitions and reasoning |
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| Pan Hong-jun,Sun Jigui,Qi Chang-song. Hierarchical fuzzy Petri nets: formal definitions and reasoning[J]. Journal of Jilin University:Eng and Technol Ed, 2007, 37(1): 111-116 |
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| Authors: | Pan Hong-jun Sun Jigui Qi Chang-song |
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| Affiliation: | 1. College of Computer Science and Technology, Jilin University, Changchun 130012; 2. Department of Computer Science, Tonghua Normal College, Tonghua 134002 |
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| Abstract: | There is a great deal of knowledge rules in a complex knowledge base and it is difficult to grasp the organizations and the logical relationships of the rules.To overcome such difficulty,a Hierarchical Fuzzy Petri Nets(HFPN) was proposed on the basis of Fuzzy Petri Nets(FPN).The formal definitions,the knowledge representation method and reasoning of HFPN were also developed.By application of place abstraction and transition abstraction HFPN is able to realize hierarchical knowledge representation and reasoning.Using the concept of hierarchy,the complexity of constructing knowledge bases can be reduced by modularization method in the design phase,hence facilitates the knowledge base management and optimization. |
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| Keywords: | computer engineering knowledge base fuzzy logic hierarchical fuzzy Petri nets |
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