transfer-learning-formal-definition-domain-task

IN premise — entries/2026/06/21/wiki-Transfer_learning-chunk-1.md

Created 2026-06-21T09:55:54+00:00

Transfer learning formally involves source domain D_S with task T_S and target domain D_T with task T_T, where either the domains or tasks must differ; if both are identical it is not transfer learning.

Dependents

These beliefs depend on this one:

• IN pretraining-is-transfer-learning-at-scale — Modern self-supervised pretraining is transfer learning at industrial scale — the formal transfer learning framework (source domain D_S → target domain D_T) exactly describes the pretrain-then-finetune pipeline, unifying a 50-year-old theoretical concept with the dominant modern training methodology.