摘要
基于分数维数,提出了非线性相关度的概念,用于度量两列经济数据的非线性相关程度,以解决非线性经济预测中的变量选择问题.
In this paper, a statisticNonlinear Dependence Coefficient based on fractal dimension is proposed. This statistic is designed for measuring nonlinear dependence between time series, and can be used in variable selecting for economical forecasting. Numerical results show the statistic is reasonable.
出处
《信息与控制》
CSCD
北大核心
1998年第3期185-189,共5页
Information and Control
基金
国家自然科学基金
中国博士后科学基金