arXiv AI By Igor Bezmaternykh (INSA Toulouse), Louise Trav\'e-Massuy\`es (LAAS-DISCO, Comue de Toulouse, ANITI), Elodie Chanthery (LAAS)

Discovery of fully efficient fault indicators along a data-based diagnosis process

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The paper presents DT4X+, an improved diagnosis algorithm that builds on DT4X by refining training set construction and symbolic‑regression loss to better separate target classes while maintaining coherence among non‑target classes. This results in relations that fully align with analytical redundancy relation properties, yielding more informative decision‑tree splits, enhanced robustness, and superior performance on dynamic‑system datasets. Experiments on benchmark systems confirm these advantages.

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