Search found 198 matches

by Norbert
Mon Dec 2, 2024 11:53
Forum: Bibliography
Topic: Eckmann 1987 vs 1995
Replies: 3
Views: 11454

Re: Eckmann 1987 vs 1995

Norbert, this phenomenon is unfortunately quite common especially when citing textbooks or article collections. It might stem from laziness, it's easier to copy a citation from another publication.Note that the 1995 version provides some clarifications but is still largely based on the 1987 work. I...
by Norbert
Tue Oct 1, 2024 17:11
Forum: Bibliography
Topic: Eckmann 1987 vs 1995
Replies: 3
Views: 11454

Re: Eckmann 1987 vs 1995

This phenomenon is obviously caused by Google Scholar: https://scholar.google.de/scholar?q=%22Recurrence+Plots+of+Dynamical+Systems%22 . It does not show all versions of this reference, only the 1995 version. The complete list is available when clicking for "more results". https://scholar....
by Norbert
Sun Jun 16, 2024 19:26
Forum: Bibliography
Topic: Eckmann 1987 vs 1995
Replies: 3
Views: 11454

Eckmann 1987 vs 1995

Really strange situation: Since a few months I observe that many papers cite now the reprint Eckmann et al: Recurrence Plots of Dynamical Systems, In: Turbulence, Strange Attractors and Chaos, World Scientific, Singapore, 1995, https://doi.org/10.1142/9789812833709_0030 instead of the original work ...
by Norbert
Wed Sep 20, 2023 20:24
Forum: Recurrence Plot Symposium
Topic: 11th Recurrence Plot Symposium in Mexico
Replies: 0
Views: 54523

11th Recurrence Plot Symposium in Mexico

The next symposium (in 2025) will be most likely in Mexico City.
by Norbert
Thu Mar 9, 2023 07:59
Forum: Multivariate Extensions and Spatial Data
Topic: Multivariate non-time series
Replies: 1
Views: 59307

Re: Multivariate non-time series

Similar to this previous question: (http://forum.recurrence-plot.tk/viewtopic.php?f=4&t=3591). I'd like to take multivariate data (independent feature1, feature2, ..., featureN) and convert each row into an image for classification. There are perhaps 10 features as well as a dependent variable,...
by Norbert
Wed Jan 11, 2023 12:25
Forum: Recurrence Plot Symposium
Topic: 10th Recurrence Plot Symposium in Japan
Replies: 1
Views: 48098

Re: 10th Recurrence Plot Symposium in Japan

We would like to announce the 10th International Symposium on Recurrence Plots which will be held at the National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan, August 28-30, 2023; as a satellite conference of ICIAM 2023 in Tokyo. For the moment, we plan a regular conferenc...
by Norbert
Fri May 6, 2022 20:55
Forum: Quantification
Topic: Clustering coefficient and Transitivity
Replies: 3
Views: 80204

Re: Clustering coefficient and Transitivity

UAFredens wrote: Fri Apr 8, 2022 11:44 Referring to Reference Manual Version 5.22, Release 32, are there any scientific papers defing or discussing "local recurrence rate" and RQA measure #13, Transitivity?
see answer at http://forum.recurrence-plot.tk/viewtop ... 6748#p6748
by Norbert
Mon May 2, 2022 08:19
Forum: Quantification
Topic: Transitivity?
Replies: 1
Views: 11488

Re: Transitivity?

Referring to Reference Manual Version 5.22, Release 32, are there any scientific papers defing or discussing "local recurrence rate" and RQA measure #13, Transitivity? There are not so many on the local RR (although I have included it in my lectures on recurrence analysis). The first one ...
by Norbert
Mon Mar 21, 2022 11:08
Forum: General Discussion
Topic: function for general synchronization
Replies: 1
Views: 64460

Re: function for general synchronization

Dear sir, I wanted to ask if there exists any function in the CRP toolbox to compute GPR for general synchronization like there exists CPR for phase synchronization? No, because the calculation is so easy. You have simply to calculate the RPs of the individual systems and multiply them to get the J...
by Norbert
Fri Jan 28, 2022 22:21
Forum: General Discussion
Topic: Installation in HPC
Replies: 1
Views: 12742

Re: Installation in HPC

Hi, I'm not sure about the architecture of your HPC. But in our system,we have a login node where I can install and test software. Then, when submitting the job, the used nodes are able to access the same folder. Thus, no problem. In your case, as far as I understand, you have no access to the used ...
by Norbert
Fri Jan 21, 2022 21:48
Forum: General Discussion
Topic: unthresholded recurrence plots images
Replies: 1
Views: 12661

Re: unthresholded recurrence plots images

Hi All, I want to use CRP for calculating RQA. R = crp (x) gives the threshold matrix. Is there any way to have the unthreshold matrix or save unthreshold RQA image? Regards Sure. As it is specified in the help of this function, the corresponding flag is "distance" (or in short "dis&...
by Norbert
Thu Nov 25, 2021 08:19
Forum: Available Software
Topic: New functions in CRP Toolbox regarding corrections
Replies: 0
Views: 90818

New functions in CRP Toolbox regarding corrections

After long time some new functions (embed, skel_crp, dl) have been included into the Cross Recurrence Plot Toolbox for MATLAB , mainly providing the corrections proposed in Kraemer & Marwan, Phys. Lett. A 383 (2019). DOI:10.1016/j.physleta.2019.125977 . skel_crp is a new function and allows to c...
by Norbert
Thu Nov 25, 2021 08:02
Forum: Applications
Topic: pss function and other methods to find proper radius for CRQA
Replies: 3
Views: 77703

Re: pss function and other methods to find proper radius for CRQA

Yes, for radius I meant recurrence threshold ε. As for the research question i'm interested in analyzing the dynamics between two people performing the same movements at the same time. To this regard if I were interested to just the line of synchronization, inputting in the crqad function a lag = 0...
by Norbert
Wed Oct 27, 2021 21:47
Forum: Quantification
Topic: RR calculation using CRQAD and phasesynchro
Replies: 1
Views: 15045

Re: RR calculation using CRQAD and phasesynchro

Should be the same. I have to check. Perhaps there is another norm selected or the time series was normalised by default. Do you have a short example? I could use it to check the code.