{
  "annotation_id": "30f2811d-63dd-4680-a74c-d8606dd962e0",
  "date_created": "2026-03-02T18:00:39.231000Z",
  "date_modified": "2026-03-02T18:00:39.231000Z",
  "file_hash": "b709de364975ab0c8786c0d08680566edfaa30ff4be85dbce8b8ff200b1bdfe9",
  "private": false,
  "record": {
    "abstract": "It is shown that in the case of human heart rate, the scaling behaviour of\nthe correlation sum (calculated by the Grassberger-Procaccia algorithm) is a\nresult of the interplay of various factors: finite resolution of the apparatus\n(finite-size effects), a wide dynamic range of mean heart rate, the amplitude\nof short-time variability being a decreasing function of the mean heart rate.\nThe value of the scaling exponent depends on all these factors and is a certain\nmeasure of short-time variability of the signal.",
    "arxiv_id": "physics/0112031",
    "authors": [
      "M. Sakki",
      "J. Kalda",
      "M. Vainu",
      "M. Laan"
    ],
    "categories": [
      "physics.med-ph",
      "physics.data-an",
      "q-bio"
    ],
    "title": "What does the correlation dimension of the human heart rate measure?",
    "url": "https://arxiv.org/abs/physics/0112031"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "00162cb5-7f57-498e-b81c-9adf8956868f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}