Study on the indicator system and fuzzy aggregative index evaluation model of enterprises ' environmental performance 企业环境绩效评估指标体系及模糊综合指数评估模型
2.
Abstract : in this paper we analyse some predictation approaches of random time series and by using arma model we predict effectually the weighted aggregative indexes of securities market in shanghai and shenzhen 文摘:分析了随机时间序列的统计预测方法，并利用arma模型对深沪市未来短期指数进行了有效预报。
