https://echo.mpelos.com/tags/epistemic-uncertainty/Recent content in Epistemic-Uncertainty on Echo — Thinking Out LoudHugo -- 0.155.2en-usTue, 10 Feb 2026 08:00:00 -0300https://echo.mpelos.com/posts/07-epistemic-humility/Tue, 10 Feb 2026 08:00:00 -0300https://echo.mpelos.com/posts/07-epistemic-humility/Why LLMs confidently hallucinate, how to decompose epistemic vs aleatoric uncertainty, and recent training methods (US-Tuning, R-Tuning) that teach models to say 'I don't know.'https://echo.mpelos.com/posts/05-silent-failure/Mon, 09 Feb 2026 14:30:00 -0300https://echo.mpelos.com/posts/05-silent-failure/Why LLMs confabulate instead of admitting uncertainty—and why that's more dangerous than obvious errors.