• 研究了有关布朗单一参数指数平滑经济预测模型系数估计问题整理给出了比较完整证明

    This paper analysized the estimation problem on coefficient of Brown single parameter index smooth economic prediction model followed by giving a complete attestation.

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  • 基于随机分形理论采用分数布朗运动模型应用R/S分析技术基于小波变换的谱参数估计方法计算地震道信号的斯特指数

    The thesis based on random fractal theory, utilizing fractional Brownian motion model, using R/S analysis technique and wavelet transform method to estimate Hurst exponent which dep.

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  • 目的:对云南省双江邦丙乡布朗面部器官41个测量项目17个头面部指数进行全面系统测量。

    OBJECTIVE: To completely and systematically measure the 41 items and 17 indexes of the craniofacial organs of Bulang minority in Bangbing countryside of Shuangjiang county in Lincang area.

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  • 布朗单一参数四次指数平滑更好跟踪时序非线性变化趋势,达到更好的短期预测效果。

    Quartic exponential smoothing method can follow the nonlinear trend of time series better and can also forecast better.

    youdao

  • 布朗单一参数四次指数平滑更好跟踪时序非线性变化趋势,达到更好的短期预测效果。

    Quartic exponential smoothing method can follow the nonlinear trend of time series better and can also forecast better.

    youdao

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