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English(EN) Time-partitioning Gaussian Process Mixture Model

新的贝叶斯模型识别时间序列数据中的金融状态

研究人员引入了时间划分高斯过程混合模型(TPGPMM),这是一个新颖的贝叶斯非参数框架,旨在识别时间序列数据中的持续状态并对非平稳依赖性进行建模。该模型将自适应的Pitman--Yor先验用于分割与特定状态的高斯过程相结合,从而能够灵活地适应不同的状态长度。采用Metropolis-within-Gibbs采样器来联合学习变化点和超参数,为分割和动态提供不确定性量化。应用于金融数据,如CBOE波动率指数(VIX)和美国国债收益率,已成功识别出与重大市场和货币政策事件相符的状态。 AI

影响 引入了一种新的时间序列分析统计建模框架,有可能改善金融预测和状态识别。

排序理由 该集群描述了一篇介绍用于时间序列分析的新型统计模型的新学术论文。[lever_c_demoted from research: ic=1 ai=0.7]

在 arXiv cs.LG 阅读 →

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新的贝叶斯模型识别时间序列数据中的金融状态

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该集群描述了一篇介绍用于时间序列分析的新型统计模型的新学术论文。[lever_c_demoted from research: ic=1 ai=0.7]
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报道来源 [1]

  1. arXiv cs.LG TIER_1 English(EN) · Guilherme Piantino, Hedibert F. Lopes ·

    时分高斯过程混合模型

    arXiv:2610.20860v1 Announce Type: cross Abstract: We propose the Time-partitioning Gaussian Process Mixture Model (TPGPMM), a Bayesian nonparametric framework for identifying persistent regimes and modelling nonstationary dependence in time series. The model combines an adaptive …