{
  "id": 15554539,
  "title": "Judge noise or answer noise? What really moves RAG evaluation scores",
  "url": "https://urgent.news/2026/10/19/judge-noise-or-answer-noise-what-really-moves-rag-evaluation-scores",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-10-19T04:02:06.000Z",
  "source": {
    "name": "Dev.to",
    "slug": "dev-to",
    "url": "https://dev.to/hualiphd/judge-noise-or-answer-noise-what-really-moves-rag-evaluation-scores-hfl"
  },
  "original_language": "en",
  "account": null,
  "summary": "Summary. RAG evaluation scores change from run to run even when nothing in the system changes. I measured where that variation comes from in my own system: from the LLM judge grading the same answers differently, or from the generator writing different answers. For faithfulness, about 85% of the run-to-run variance came from the answers. For answer relevancy, nearly all of it did. Context recall…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}