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The Multiscale Conformation Evolution of the Financial Time Series

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  • Shupei Huang
  • Haizhong An
  • Xiangyun Gao
  • Xiaoqing Hao
  • Xuan Huang

Abstract

Fluctuations of the nonlinear time series are driven by the traverses of multiscale conformations from one state to another. Aiming to characterize the evolution of multiscale conformations with changes in time and frequency domains, we present an algorithm that combines the wavelet transform and the complex network. Based on defining the multiscale conformation using a set of fluctuation states from different frequency components at each time point rather than the single observable value, we construct the conformational evolution complex network. To illustrate, using data of Shanghai’s composition index with daily frequency from 1991 to 2014 as an example, we find that a few major conformations are the main contributors of evolution progress, the whole conformational evolution network has a clustering effect, and there is a turning point when the size of the chain of multiscale conformations is 14. This work presents a refined perspective into underlying fluctuation features of financial markets.

Suggested Citation

  • Shupei Huang & Haizhong An & Xiangyun Gao & Xiaoqing Hao & Xuan Huang, 2015. "The Multiscale Conformation Evolution of the Financial Time Series," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-9, October.
    • Handle: RePEc:hin:jnlmpe:563145
    DOI: 10.1155/2015/563145
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