{
  "abstract": "The Davidson Frame (Structured Information Deterministic Manifolds, SIDM) is a seven-stage procedural architecture for reconstructing latent system states from noisy and information-constrained observations. This study presents an initial empirical validation of the framework using the NASA Commercial Modular Aero-Propulsion System Simulation (CMAPSS) turbofan degradation benchmark, comprising datasets FD001–FD004. The study is intended as a component-level validation of the Davidson Frame's inference and admissibility logic rather than as a competitive Remaining Useful Life (RUL) prediction exercise. A deliberately simple linear Health-Index model was used for Stage 5 reconstruction, while Stage 6 applied an entropy-based admissibility gate that attenuates or rejects candidate estimates when observational irregularity exceeds a defined threshold. The first ten test engines from each CMAPSS subset were evaluated, giving forty test engines in total. The entropy gate activated consistently across all four datasets, with cut-offs occurring in 9/10 FD001 engines, 7/10 FD002, 5/10 FD003, and 7/10 FD004. In each subset, increased observational entropy produced systematically more conservative latent-state estimates. Absolute RUL errors remained substantial, with mean absolute errors ranging from 53.7 to 107.2 cycles. These results are interpreted primarily as a limitation of the deliberately minimal Stage-5 reconstruction, rather than as evidence against the underlying gating architecture. The experiment therefore tests a narrower and more fundamental question: whether the Davidson Frame's entropy-gated admissibility mechanism behaves consistently when exposed to real multivariate degradation data. The observed results support that component-level hypothesis while identifying reconstruction quality, threshold calibration, larger-sample evaluation, and comparison of gated versus ungated estimates as the next validation stages. The longer-term purpose of this validation is architectural. The Davidson Frame is intended to provide a general state-estimation and information-admissibility layer within the wider Pathfinder architecture, including autonomous relay and beacon systems associated with the Phase-Managed Handover System (PMHS) and Poloidal-Shielded Analog Relay Buffer (PSARB). Within that architecture, the present study should therefore be understood as one independent validation step toward a larger system in which sensing, state reconstruction, uncertainty assessment, data handling, and autonomous operational decisions are separately testable before integration.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "name": "Craig Kyrle Strachan Davidson"
    },
    {
      "name": "Lucie Mary Elise Davidson"
    },
    {
      "name": "Alfie Christian Strachan Davidson"
    },
    {
      "name": "Nolwen Marie Violette Bourlier"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/d848thh77ns7a.bib",
  "cited_by": 0,
  "doi": "10.5281/zenodo.22115041",
  "fulltext_url": null,
  "id": "d848thh77ns7a",
  "issns": [],
  "landing_url": "https://hal.science/hal-05728151v1",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
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      "0.math"
    ],
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      "1.phys.astr"
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  "openalex": "W7204253576",
  "pdf_url": "https://hal.science/hal-05728151/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/d848thh77ns7a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:34Z",
      "native_id": "hal-05728151",
      "source": "hal",
      "url": "https://hal.science/hal-05728151v1"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "hal:2.phys.astr.ep",
      "subfield": "planetary"
    },
    {
      "field": "mathematics",
      "origin": "hal:0.math",
      "subfield": "general"
    },
    {
      "field": "physics",
      "origin": "hal:0.phys",
      "subfield": "general"
    }
  ],
  "title": "Davidson Frame",
  "title_text": "Davidson Frame",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:34Z",
  "url": "https://research.draconitic.com/paper/d848thh77ns7a",
  "venue": "HAL",
  "versions": []
}