• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2013, Vol. 35 ›› Issue (2): 114-120.

• 论文 • 上一篇    下一篇

时态粒度约束下的时态元素定性关系探讨

左亚尧1,舒忠梅2,汤庸3   

  1. (1.广东工业大学计算机学院,广东 广州 510006;2.中山大学高等教育研究所,广东 广州 510275;
    3.华南师范大学计算机学院,广东 广州 510631)
  • 收稿日期:2012-03-16 修回日期:2012-06-07 出版日期:2013-02-25 发布日期:2013-02-25
  • 基金资助:

    国家自然科学基金资助项目(60970044,60673135,60736020);广东省自然科学基金资助项目(S2011040004281)

Research on qualitative relationship among temporal elements with temporal granularities constraints

ZUO Yayao1,SHU Zhongmei2,TANG Yong3   

  1. (1.Faculty of Computer,Guangdong University of Technology,Guangzhou 510006; 2.Institute of Higher Education Research,Sun YatSen University,Guangzhou 510275; 3.School of Computer Science,South China Normal University,Guangzhou 510631,China)
  • Received:2012-03-16 Revised:2012-06-07 Online:2013-02-25 Published:2013-02-25

摘要:

针对时态粒度约束下的时态元素之间的定性关系,引入向量空间思想,将时态粒点间的关系转换为向量空间中的运算。提出时态粒点的向量判别方法以比较两个时态粒点的先后关系,通过粒度缩放操作探讨了时态粒区之间的关系、时态粒点与时态粒区之间的定性关系,对时态数据库、时态知识推理、时态数据挖掘等时态应用研究领域起到了良好的基础支持作用。

关键词: 时态, 粒度, 时态元素, 定性关系, 约束

Abstract:

Qualitative relationship among temporal elements with the constraints of temporal granularity, is one of the most fundamental issues. The vector space is introduced to solve the complexity of the temporal relationship with the constraints of temporal granularity. Thus, the relationship between two temporal points can be converted to the operation in the vector space. Furthermore, the granularity scaling operators are used to analyze the relationship between different temporal elements, such as temporal point, temporal interval. The proposed method has a fundamental support to the temporal research and applications such as temporal database, temporal knowledge reasoning and temporal data mining.

 

Key words: temporal;granularity;temporal elements;qualitative relationship;constraint