摘要
给出一种集成定性与定量约束的可视时态概念模型．通过该模型使得每个时态对象可以转化为平面上的一个可视实体，并且在一些假设下引进一种有效的可视时态约束传递算法．
Undertaking temporal reasoning is inherently intractable in temporal detabases. In this paper, a conceptual temporal model, which combines qualitative and quantitative temporal constraints, ispresented. This model can transform each temporal object into a visualized entity in the coordinate planeand an effective visualized temporal constraint propagation algorithm can be developed under some assumptions.
出处
《暨南大学学报（自然科学与医学版）》
CAS
CSCD
1999年第3期48-52,共5页
Journal of Jinan University(Natural Science & Medicine Edition)
基金
广东省自然科学基金!960205
关键词
时态数据库
定性约束
定量约束
时态推理
可视化
: temporal database
qualitative constraints
quantitative constraints
temporal reasoning
visualization
