Unresolvable Identifier

arXiv:2604.26651 · detector doi_compliance · cross_source · 2026-05-19 19:57:00.621607+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.5555/2981562.2981665' 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

John Langford and Tong Zhang. 2007. The Epoch-Greedy algorithm for contextual multi-armed bandits. InProceedings of the 20th International Conference on Neural Information Processing Systems(Vancouver, Canada)(NIPS ’07). Curran Associates Inc., Red Hook, NY, USA, 817–824. doi:10.5555/2981562.2981665

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.5555/2981562.2981665",
  "raw_excerpt": "John Langford and Tong Zhang. 2007. The Epoch-Greedy algorithm for contextual multi-armed bandits. InProceedings of the 20th International Conference on Neural Information Processing Systems(Vancouver, Canada)(NIPS \u201907). Curran Associates Inc., Red Hook, NY, USA, 817\u2013824. doi:10.5555/2981562.2981665",
  "ref_index": 27,
  "verdict_class": "cross_source"
}