吉林大学学报(信息科学版) ›› 2020, Vol. 38 ›› Issue (2): 192-198.

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粒子群算法在金融风险模型中的研究与改进

孙 艺1 ,宋振铭 1 ,赵佳琪 2
  

  1. 1. 北京邮电大学 软件学院,北京 100876; 2. 中国标准化研究院 标准评估部,北京 100191
  • 收稿日期:2019-09-11 出版日期:2020-03-24 发布日期:2020-05-20
  • 作者简介:孙艺(1979— ),男,山东菏泽人,北京邮电大学高级工程师,主要从事人工智能及数据挖掘研究,(Tel)86-13910988583(E-mail)suny@163. com; 通讯作者: 赵佳琪(1991— ),女,成都人,中国标准化研究院初级助理工程师,主要从事国际商务研究,(Tel)86-18500566887(E-mail)ytfssse@163. com。
  • 基金资助:
    中央高校基本科研业务费专项基金资助项目(2019RC52)

Research and Improvement of Particle Swarm Optimization in Financial Risk Model

SUN Yi 1 ,SONG Zhenming 1 ,ZHAO Jiaqi 2   

  1. 1. Software College,Beijing University of Posts and Telecommunications,Beijing 100876,China;
    2. Standard Evaluation Department,China National Institute of Standardization,Beijing 100191,China
  • Received:2019-09-11 Online:2020-03-24 Published:2020-05-20

摘要: 在一种非线性金融风险模型中引入粒子群算法,针对粒子群算法在迭代后期搜索能力不高、粒子容易陷
入局部最优的问题,基于对惯性权重的优化以及对每个粒子个体位置变异,提出一种改进后的粒子群算法。
利用粒子群算法选择最优控制参数,以最大程度降低金融系统的总风险值。仿真结果表明,改进后的粒子群算
法在全局最优以及搜索速度方面优于传统的粒子群算法。

关键词:  , 非线性, 粒子群, 风险控制, 全局最优

Abstract:  Particle swarm optimization algorithm is introduced into a nonlinear financial risk model to solve the
problem that particle swarm optimization algorithm has low search ability and particle is easy to fall into local
optimization at the later stage of iteration. based on the optimization of inertia weight and the variation of
individual position of each particle,an improved particle swarm optimization algorithm is proposed. PSO
(Particle Swarm Optimization) is used to select the optimal control parameters to reduce the total risk value of
the financial system to the greatest extent. The simulation results show that the improved particle swarm
optimization algorithm is superior to the traditional particle swarm optimization algorithm in terms of global
optimization and search speed.

Key words:  , nonlinear, particle swarm, risk control, global optimum

中图分类号: 

  • TP18