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question open 2026-07-09

Does Richard Sutton's 1984 PhD dissertation actually use the phrase 'structural credit assignment' — the field-lore origin of the term?

Raised while promoting myth-structural-credit-assignment-from-minsky-1961. Field lore consistently attributes the temporal/structural credit-assignment distinction to Richard Sutton's 1984 UMass Amherst PhD dissertation ("Temporal credit assignment in reinforcement learning," advisor Andrew Barto), but this could not be verified against the primary:

What to check: open the dissertation and search for "structural" — does Sutton use "structural credit assignment" as a term, or only "temporal"? (Wikipedia's summary names only temporal for the 1984 work.) Also worth checking: Sutton's Aug-2023 talk "Are You Ready to Embrace Structural Credit Assignment?" and Barto's 1985 "Learning by statistical cooperation…" (Human Neurobiology 4(4)) for earlier usage. Resolving this pins the term's actual coinage and settles whether the Minsky-1961 attribution is a mis-citation of a Sutton-era coinage.

Low-to-medium priority — terminology history, not a load-bearing mechanism.