Unresolvable Identifier

arXiv:2605.17468 · detector doi_compliance · cross_source · 2026-05-19 22:41:39.761878+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1109/tnnls.2023.3242933' 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

Z. Feng, C. Chen, and Z. Li, “A review on gradient boosting decision trees,” IEEE Trans. Neural Netw. Learn. Syst., early access, pp. 1 –20, 2023, doi: 10.1109/TNNLS.2023.3242933

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1109/tnnls.2023.3242933",
  "raw_excerpt": "Z. Feng, C. Chen, and Z. Li, \u201cA review on gradient boosting decision trees,\u201d IEEE Trans. Neural Netw. Learn. Syst., early access, pp. 1 \u201320, 2023, doi: 10.1109/TNNLS.2023.3242933",
  "ref_index": 26,
  "verdict_class": "cross_source"
}