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用于运动趋势预测的灰色时空数据模型

DOI: 10.11834/jig.20050244

Keywords: 时空数据库,时空数据模型,灰建模,灰预测,运动趋势预测

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Abstract:

时空数据库是现代数据库技术研究的新领域,其研究工作还处在模型研究阶段,已有的模型面向对象的过去信息,缺乏对时空对象将来运动趋势的计算与预测能力。为此,提出了一种新的时空数据模型,该模型不仅可以用于分析处理时空对象过去时刻的运动情况,还可以以较高的精度对近期将来的时空演化进行预测。该模型针对2维平面上自由运动的移动点对象,引入灰建模方法来降低离散抽样数据本身包含的不确定性,能够给出对象在一定时间上的整体运动趋势,从而提供更加精确的时空预测。

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