ЮФУ — 2026.11.02 — Обратное распространение ошибки и SGD

New channel Sergey Nikolenko: title sample judged 'whole' (Full-length recorded university lectures and research seminars on ML/AI/math taught consistently, with almost no non-tea); passed a second screen for sellers/exam-prep/re-uploads; 1 of 3 sampled transcripts showed teaching, 0 not; every title checked strictly; oEmbed verified.