{
  "annotation_id": "0b1ff062-043b-4855-8a5a-7d7682064562",
  "date_created": "2026-03-02T18:00:29.381000Z",
  "date_modified": "2026-03-02T18:00:29.381000Z",
  "file_hash": "c374114f2ed9d6aeac87f84b66e41f1d5eaebd56b11eac298ec2d5c91fb85dc2",
  "private": false,
  "record": {
    "abstract": "Three independent techniques are used to separate fine structure from the\nabsorption spectra, the background function in which is approximated by (i)\nsmoothing spline. We propose a new reliable criterion for determination of\nsmoothing parameter and the method for raising of stability with respect to\nk_min variation; (ii) interpolation spline with the varied knots; (iii) the\nline obtained from bayesian smoothing. This methods considers various prior\ninformation and includes a natural way to determine the errors of XAFS\nextraction. Particular attention has been given to the estimation of\nuncertainties in XAFS data. Experimental noise is shown to be essentially\nsmaller than the errors of the background approximation, and it is the latter\nthat determines the variances of structural parameters in subsequent fitting.",
    "arxiv_id": "physics/0003086",
    "authors": [
      "K. V. Klementev"
    ],
    "categories": [
      "physics.data-an"
    ],
    "doi": "10.1088/0022-3727/34/2/309",
    "journal_ref": "J. Phys. D: Appl. Phys. 34 (2001) No 2, 209--217",
    "title": "XAFS spectroscopy. I. Extracting the fine structure from the absorption   spectra",
    "url": "https://arxiv.org/abs/physics/0003086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bc79cbbd-dc3f-4521-8b6f-b07ff7096635",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}