从相互作用振荡器的相位看耦合方向：一种信息论方法。
Direction of coupling from phases of interacting oscillators: an information-theoretic approach.
作者信息
Palus Milan, Stefanovska Aneta
机构信息
Institute of Computer Science, Academy of Sciences of the Czech Republic, Pod vodárenskou vezí 2, 182 07 Prague 8, Czech Republic.
出版信息
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 May;67(5 Pt 2):055201. doi: 10.1103/PhysRevE.67.055201. Epub 2003 May 27.
A directionality index based on conditional mutual information is proposed for application to the instantaneous phases of weakly coupled oscillators. Its abilities to distinguish unidirectional from bidirectional coupling, as well as to reveal and quantify asymmetry in bidirectional coupling, are demonstrated using numerical examples of quasiperiodic, chaotic, and noisy oscillators, as well as real human cardiorespiratory data.
提出了一种基于条件互信息的方向性指数，用于应用于弱耦合振荡器的瞬时相位。通过准周期、混沌和噪声振荡器的数值示例以及真实的人体心肺数据，展示了其区分单向耦合和双向耦合的能力，以及揭示和量化双向耦合中不对称性的能力。
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