Unresolvable Identifier

arXiv:2604.20255 · detector doi_compliance · cross_source · 2026-05-20 02:08:57.327760+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1186/s40537-020-00324-9' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.

Paper page Integrity report arXiv Try DOI

Evidence text

Srujana Thudumu, Philip Branch, Jia Jin, and Andy Kenyon. 2020. A Compre- hensive Survey of Anomaly Detection Techniques for High Dimensional Data. Journal of Big Data7, 1 (2020), 26. doi:10.1186/s40537-020-00324-9

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1186/s40537-020-00324-9",
  "raw_excerpt": "Srujana Thudumu, Philip Branch, Jia Jin, and Andy Kenyon. 2020. A Compre- hensive Survey of Anomaly Detection Techniques for High Dimensional Data. Journal of Big Data7, 1 (2020), 26. doi:10.1186/s40537-020-00324-9",
  "ref_index": 51,
  "verdict_class": "cross_source"
}