摘要
决策演化集是处理决策规则在时间序列上的演化问题的理论。决策演化集将着眼点从静态的决策信息系统转移到动态的时间序列上,研究决策信息系统在随着时间变化时的演化规律,是一种新的决策研究方法。目前,在决策演化集的标准结构下存在着一些问题,例如预测得到的属性较少,预测夹角偏大等问题。决策演化集的三支结构在提高预测准确度方面是一个有效的方法,但其阈值α和β是固定的。然而,在时间序列下数据是不停变化的,固定的α和β并不能很好地适应这种变化。利用博弈论的方法来调整修改α和β使其适应决策信息系统在时间序列下的变化,并通过实例来演示这种调整。
Decision evolution sets is a theory to deal with evolution problem of decision rules in time series. Decisionevolution sets transfer the focus from static decision information system to dynamic time series, which is a new decisionresearch method to research the evolution regulations in decision information system following the time variation. At present,the standard structure of decision evolution sets has some questions, for example, less forecast attributes, bigger forecastangel. The three-way structure of decision evolution sets is a good way to improve the prediction accuracy, but the thresholdα and β are fixed. However, in the time series data is constantly changing, fixed α and β cannot adapt to these changes.This paper uses game theory methods to adjust α and β to adapt to the changing in time series, and uses an example toshow the adaption.
作者
胡玉文
徐久成
张倩倩
HU Yuwen;XU Jiucheng;ZHANG Qianqian(College of Computer and Information Engineering, Henan Normal University, Xinxiang, Henan 453007, China;Engineering Technology Research Center for Computing Intelligence and Data Mining, Xinxiang, Henan 453007, China;Library of Henan Normal University, Xinxiang, Henan 453007, China)
出处
《计算机工程与应用》
CSCD
北大核心
2017年第1期92-97,106,共7页
Computer Engineering and Applications
基金
国家自然科学基金(No.60873104
No.61040037
No.61370169)
河南省科技攻关重点项目(No.112102210194)
河南省教育厅科学技术研究重点项目(No.13A520529)
河南省高等学校人文社会科学研究项目(No.2013-QN-371)
2013河南师范大学教育科学研究基金
河南师范大学青年科学基金(No.2014QK28)
河南省高等学校重点科研项目(No.16A520057)
关键词
粗糙集
粒度决策
决策演化
三支博弈
rough sets
granular decision
decision evolution
game of three-way structure
