Unresolvable Identifier

arXiv:2605.02402 · detector doi_compliance · cross_source · 2026-05-19 16:23:37.447121+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1109/tsmcb.2008.20078' 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

Exploratory undersampling for class- imbalance learning. IEEE Transactions on Systems, Man, and Cybernet- ics, Part B (Cybernetics) 39, 539–550. doi:10.1109/TSMCB.2008.20078

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1109/tsmcb.2008.20078",
  "raw_excerpt": "Exploratory undersampling for class- imbalance learning. IEEE Transactions on Systems, Man, and Cybernet- ics, Part B (Cybernetics) 39, 539\u2013550. doi:10.1109/TSMCB.2008.20078",
  "ref_index": 26,
  "verdict_class": "cross_source"
}