Centers in dbaclust

[jaksle]

I am trying to perform clustering based on DTW and I wanted to check dbaclust method here, I also need cluster (bary)centers. But the ones returned by dbaclust looked wrong. So I used method dba on the obtained clusters with the same DTW(250) as dbaclust, the result was different and much more sensible. I am at loss here. What are those centers if not dba barycenters?

[baggepinnen]

Have you seen the warning in the readme, and the links therein?
https://github.com/baggepinnen/DynamicAxisWarping.jl?tab=readme-ov-file#clustering-and-barycenter-averaging

DBA is known not to be a great algorithm at producing barycenters. See the example under https://github.com/baggepinnen/DynamicAxisWarping.jl?tab=readme-ov-file#differentiable-soft-dtw for how to produce much nicer barycenters

[jaksle]

But this is not my question. My question is if this even is dba.

[baggepinnen]

The dba iteration code is called from within dbaclust, but with a smaller default number of iterations than the default of calling dba directly

[jaksle]

Oh, this must be the source of the difference. Thank you!