{
  "annotation_id": "d8ea4377-6f59-4d0c-acbb-f87526dba06a",
  "date_created": "2026-03-02T18:01:10.124000Z",
  "date_modified": "2026-03-02T18:01:10.124000Z",
  "file_hash": "424a6a2cd283617faf668fca8b960b5d2ec20650438c22c19543e894b5b0c6e6",
  "private": false,
  "record": {
    "abstract": "Using the requisition papers of Chinese Nature Science Basic Research in\nmanagement and information department, we construct the weighted network of\nresearch areas({\\bf WRAN}) represented by the subject codes. In WRAN, two\nresearch areas are considered connected if they have been filled in at least\none requisition paper. The edge weight is defined as the number of requisition\npapers which have filled in the same pairs of codes. The node strength is\ndefined as the number of requisition papers which have filled in this code,\nincluding the papers which have filled in it only. Here we study a variety of\nnonlocal statistics for these networks, such as typical distances between\nresearch areas through the network, and measures of centrality such as\nbetweenness. These statistics characteristics can illuminate the global\ndevelopment trend of Chinese scientific study, it is also helpful to adjust the\ncode system to reflect the real status more accurately. Finally, we present a\nplausible model for the formation and structure of networks with the observed\nproperties.",
    "arxiv_id": "physics/0606087",
    "authors": [
      "Jian-Guo Liu",
      "Zhao-Guo Xuan",
      "Yan-Zhong Dang",
      "Qiang Guo",
      "Zhong-Tuo Wang"
    ],
    "categories": [
      "physics.soc-ph"
    ],
    "doi": "10.1016/j.physa.2006.11.011",
    "title": "Weighted Network of Chinese Nature Science Basic Research",
    "url": "https://arxiv.org/abs/physics/0606087"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2d140e28-12b4-48c8-bcc9-33252993ed5f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}