A ground-truth is a human-made standard or reference dataset, measurement, or annotation established by expert consensus, direct observation, or authoritative measurement as the correct answer against which other methods, models, or observations are evaluated. Parameters: (1) a reference standard produced by a trusted authority or direct measurement; (2) a defined scope of applicability (domain, conditions, population); (3) a documented methodology for its creation and maintenance. It persists through formal documentation, calibration archives, and repeated deployment in testing and benchmarking. [formal: veritas certa | substrate: mind | horizon: a life | explicit: yes | epoch: 0.01]
Accepted ontology entry
ground-truth
A ground-truth is a human-made standard or reference dataset, measurement, or annotation established by expert consensus, direct observation, or authoritative measurement as the correct answer against which other methods, models, or observ…
Definition
Why it is in scope
A human-made standard or reference set established by expert agreement as the correct answer or measurement against which other methods, models, or observations are evaluated. Built to persist through documentation, calibration protocols, and repeated use in testing regimes.
Names and aliases
- ground-truthen · CANONICAL
Relations from this entry
- cmrrebpth01d0q89dnq5yzsu4INSTANCE_OF →
Ground-truth IS a specific kind of reference — namely, a reference point that serves as the ultimate validation standard against which measurements, claims, or models are checked. A competent speaker would call ground-truth a type of reference. Nearest kind: reference.
- cmrmlc1rs00l6d1nlca3uac2cDERIVED_FROM →
ground-truth as a concept of definitive reference was derived from verification practice: verification came first as the act of checking, and ground-truth crystallized as the theoretical construct of the 'true reference standard' used within verification. Which-came-first test: verification practice predates the abstract concept of ground-truth.
Relations to this entry
- cms65rdjz000d5ygsaxv4jbz0← DEPENDS_ON
Remove ground-truth (the true/correct reference standard) and accuracy as a concept stops operating: accuracy IS closeness to the true, so without a ground-truth there is no accuracy to speak of. Passes the removal test of Law 8.
Record identity
- Created
- Jul 23, 2026, 2:31 AM UTC
- Content hash
- ce96a034d8e8d195173736c4c1afcfca5b1ab5c91fb829ba94add45cb1dc7c58