| 语义场模型研究 |
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| 引用本文： | 王志晓,张大陆,于光杰,朱天.语义场模型研究[J].同济大学学报(自然科学版),2009,37(11). |
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| 作者姓名： | 王志晓 张大陆 于光杰 朱天 |
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| 作者单位： | 1. 同济大学,计算机科学与工程系,上海,201804;中国矿业大学计算机学院,江苏,徐州,221116
2. 同济大学,计算机科学与工程系,上海,201804 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 将场理论引入语义空间,提出语义场模型,利用该模型刻划本体概念间的语义联系及语义分布规律.首先,从势、梯度和场强等多个角度对语义场进行描述,其中,势代表场中某一点的语义,体现语义的分布情况;梯度描述了场中局部位置的语义变化情况;场强则体现了场中语义联系的强弱.然后,分析了场源作用范围,给出了本体概念质量计算方法,讨论了势函数影响因子优选问题.最后,指出了语义场在资源语义聚类、支持语义的P2P应用系统等方面的应用前景及思路.
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| 关 键 词： | 语义场 本体 概念质量 影响因子 |
| 收稿时间： | 2008/8/18 0:00:00 |
| 修稿时间： | 9/3/2009 11:06:33 AM |
Semantic Field Model |
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| WANG Zhixiao,ZHANG Dalu,YU Guangjie and ZHU Tian.Semantic Field Model[J].Journal of Tongji University(Natural Science),2009,37(11). |
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| Authors: | WANG Zhixiao ZHANG Dalu YU Guangjie and ZHU Tian |
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| Institution: | Department of Computer Science and Engineering,Tongji University,Shanghai,China,Department of Computer Science and Engineering,Tongji University,Shanghai,China,Department of Computer Science and Engineering,Tongji University,Shanghai,China,Department of Computer Science and Engineering,Tongji University,Shanghai,China |
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| Abstract: | This paper applies the field theory to semantic space and puts forward the semantic field model, which depicts the interaction between ontology concepts and the distribution law of semantics. First, this paper formally defines and describes the semantic field from the perspectives of potential, gradient and intensity. The potential represents the semantics of a certain position in the semantic field; the gradient describes local semantics change of the semantic field; and the field intensity reflects the strength of semantics association among concepts. Then, we discuss the influence scope of field sources, mass calculation of ontology concepts and the optimal selection of influence factor. Finally, the paper shows us the application prospects of semantic field in semantic-based resource clustering, semantic-supporting P2P application system and evolution analysis of ontology knowledge |
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| Keywords: | semantic field ontology concept mass influence factor |
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