Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

[FR] Ragwitz criterion for embedding time #42

Open
Datseris opened this issue Jul 23, 2020 · 1 comment
Open

[FR] Ragwitz criterion for embedding time #42

Datseris opened this issue Jul 23, 2020 · 1 comment
Labels
enhancement New feature or request low priority

Comments

@Datseris
Copy link
Member

This work: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.65.056201

introduces a method to estimate delay times for embedding, so that the "timeseries prediction" is optimized. @hkraemer have you seen this before? It scans pairs of $d, τ$ to find the pair that minimizes the nonlinear timeseries prediction error.

@hkraemer
Copy link
Contributor

Thanks for sharing @Datseris, I did not know this before.
The approach of Uzal et al. also includes the minimization of a prediction error. Specifically, their $E_2$-function does account also for different prediction horizons (and eventually take the average value). Furthermore they discuss, if the minimization of the prediction error also yields a good reconstruction in general (Sect. IV.B, Figs. 8/9). Their proposed cost-function $L_k$ seems to take everything into account.
For a similar/related approach to the one of Ragwitz & Kantz (2002) also see this work by Micheal Small & C.K. Tse. - The same critique holds here.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
enhancement New feature or request low priority
Projects
None yet
Development

No branches or pull requests

2 participants