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具分段损失函数的支持向量机回归及在投资决策中的应用 被引量:1

Support vector regression with piecewise loss function and its application in investment decision
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摘要 支持向量机回归模型的性能与所选用的损失函数有很大关系.本文提出一种具分段损失函数的支持向量机回归模型,其分段损失函数对落在不同区间的误差项采用不同的惩罚函数形式,并将该模型应用于投资决策问题中,估计收益率向量的联合概率密度函数和最优投资组合.仿真实验表明,其性能要优于一般的支持向量回归方法. The selection of loss function plays an important role to the performance of support vector regression (SVR) model. This paper proposes an SVR model with piecewise loss function, which gives different penalty values for deviation in different regions. The SVR model is applied in the problem of investment decision to estimate the joint probability density function of yield vector and the optimal portfolio. Experiments show that its performance is super iorto that of standard SVR method.
出处 《控制理论与应用》 EI CAS CSCD 北大核心 2006年第2期315-318,共4页 Control Theory & Applications
基金 国家自然科学基金资助项目(60374023) 广东省自然科学基金资助项目(011629)
关键词 支持向量机回归 损失函数 投资决策 support vector regression loss function investment decision
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  • 1VAPNIK V. The Nature of Statistical Learning Theory [M].New York: Springer-Verlag, 1995.
  • 2SUYKENS J A K, VANDEWALLE J. Least squares support vector machine classifiers [ J ]. Neural Processing Letters, 1999,9 (3) : 293 - 300.
  • 3HUBER P J.Robust Statistics [M]. New York: Wiley,1981.
  • 4SCHOLKOPT B, SMOLA A J.Learning with Kernels [ M ].Cambridge,MA: The MIT Press,2002.
  • 5PEREZ-CRUZ F, CAMPS G, SORIA E, et al. Multi-dimensional function approximation and regression estimation [ C ]//Proc of the 12th Int Conf on Artificial Neural Networks. Berlin:Springer-Verlag, 2002 : 757 - 762.
  • 6KIMELDORF G S, WAHBA G. Some results on Tchebycheffian spline functions [J]. J of Mathematical Analysis and Applications, 1971,33 ( 1 ):82 - 95.
  • 7LEIPPOLD M, TROJAN! F, VANINI P. A geometric approach to multiperiod mean variance optimization of assets and liabilities[J].J of Economic Dynamics and Control, 2004, 28 ( 6 ) :1079 - 1113.

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