| 《东阳楼记》中透视的周敦颐思想之精义 |
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| 引用本文： | 张昭炜. 《东阳楼记》中透视的周敦颐思想之精义[J]. 湖南农业大学学报(自然科学版), 2013, 0(4): 106-108 |
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| 作者姓名： | 张昭炜 |
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| 作者单位： | （上海理工大学 理学院,上海 200093） |
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| 摘 要： | 以对称二次型模糊回归模型为基础,引入一般二次模糊回归模型,利用模糊最小二乘法估计未知参数.构建评价标准考察两模型的拟合效果,在样本期内和样本期外分别评价模型的实际拟合与预测能力.
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| 关 键 词： | 区间序列 模糊回归模型 最小二乘法 上证指数 预测 |
(The Institute for Advanced Humanistic Studies, Peking University, Beijing100871, China) |
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| ZHANG Zhao-wei. (The Institute for Advanced Humanistic Studies, Peking University, Beijing100871, China)[J]. Journal of Hunan Agricultural University, 2013, 0(4): 106-108 |
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| Authors: | ZHANG Zhao-wei |
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| Affiliation: | (College of Science, University of Shanghai for Science and Technology, Shanghai 200093, China) |
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| Abstract: | We constructed a fuzzy general quadric regression model to deal with the interval financial data based on the fuzzy symmetric quadratic form regression model with crisp inputs and fuzzy outputs, and by taking into account the fuzzy least square method to estimate the unknown parameter in the model.The evaluation standard SAME and SMSE were employed to evaluate and compare the fitting results of the models .Furthemore ,we deduced the data of index of shanghai stock exchange for forecasting the models.Empirical analysis shows the first one is more effective. |
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| Keywords: | interval yield series fuzzy regression model least square method index of shanghai stock exchange prediction |
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