Predicting chaos with Lyapunov exponents: Zero plays no role in forecasting chaotic systems
We propose a nouvel methodology for forecasting chaotic systems which uses information on local Lyapunov exponents (LLEs) to improve upon existing predictors by correcting for their inevitable bias. Using simulations of the Rössler, Lorenz and Chua attractors, we find that accuracy gains can be substantial. Also, we show that the candidate selection problem identified in Guégan and Leroux (2009a,b) can be solved irrespective of the value of LLEs. An important corrolary follows: the focal value of zero, which traditionally distinguishes order from chaos, plays no role whatsoever when forecasting deterministic systems.
|Date of creation:||Jan 2010|
|Publication status:||Published in Documents de travail du Centre d'Economie de la Sorbonne 2010.19 - ISSN : 1955-611X. 2010|
|Note:||View the original document on HAL open archive server: https://halshs.archives-ouvertes.fr/halshs-00462454|
|Contact details of provider:|| Web page: https://hal.archives-ouvertes.fr/|
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