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Updated: Jun 29, 2026

Decoding Natural Behavior from Neuroethological Embedding
Published on: October 3, 2025
Comparison of tests for embeddings
C Letellier1, I M Moroz, R Gilmore
1Université de Rouen, CORIA UMR 6614, BP 12, F-76801 Saint-Etienne du Rouvray cedex, France.
Abstract:
It is possible to compare results for the classical tests for embeddings of chaotic data with the results of a recently proposed test. The classical tests, which depend on real numbers (fractal dimensions, Lyapunov exponents) averaged over an attractor, are compared with a topological test that depends on integers. The comparison can only be done for mappings into three dimensions. We find that the classical tests fail to predict when a mapping is an embedding and when it is not. We point out the reasons for this failure, which are not restricted to three dimensions.
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