Time Series Classification through Diffeomorphic Time Warping (DiffTW)
Vicky Geneva Haney, Kamel Lahouel, Victor Rielly, Bruno M. Jedynak
stat.ML, cs.LG
Submitted: 2026-06-22
Comments: 39 pages including appendix and references, 8 figures. v2: Corrected a miscalculation in the DTW nearest neighbor accuracy, identified by an author of the UCR archive, Prof. Eamonn Keogh. Updated results show the algorithm performs comparably to unconstrained DTW, but below constrained DTW. Added new discussion on constrained vs. unconstrained DTW
Code: https://github.com/vgeneva/DiffTW
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Terminology
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