ground truth
Verified factual baseline
Ground truth is the accurate, verified information used as a benchmark for testing models, algorithms, or measurements.
In machine learning, predictions are compared against ground truth to assess accuracy.
In remote sensing, satellite data is validated by on-the-ground observations.
The term implies an objective reality against which interpretations can be checked: We need ground truth before we can evaluate the model's performance.
Standard for comparison
- standardLevel of quality accepted
- referenceDirecting attention elsewhere
- calibrationAdjusting for measurement accuracy
- comparisonAssessment of similarities
metrics · evaluation · performance · criteria · measure · gauge · gold standard · control
Degree of correctness
- precisionAccuracy of measurement
- validationConfirming truth or accuracy
- reliabilityConsistent, predictable performance
- verificationProving something accurate
authenticity · fidelity · confirmation · corroboration · fact-checking · vetting · cross-referencing · source verification
baseline
Standard for comparison
- standardLevel of quality accepted
- referenceDirecting attention elsewhere
- calibrationAdjusting for measurement accuracy
comparison · metrics · evaluation · performance · criteria · measure · gauge · gold standard · control · yardstick
accuracy
Degree of correctness
- precisionAccuracy of measurement
- validationConfirming truth or accuracy
- reliabilityConsistent, predictable performance
verification · authenticity · fidelity · confirmation · corroboration · fact-checking · vetting · cross-referencing · source verification · evidence
- philosophy termstruth, reason, knowledge, wisdom, logic
- real-worldreality, facts, actual, genuine, tangible
- fieldworkfieldwork, field work, field journal, field guide, field study
- reference pointsdatum, data point, benchmark, reference line, reference point
- Satellite Imagerysatellite, aerial view, aerial photo, bird's eye view, infrared image
- field operationssurvey, patrol, recon, deployment, mapping
ground truthprediction
Forecast of coming events
false positive · false negative · error · hallucination · fabrication
ground truthestimate
Informed guess at quantity
hypothesis · conjecture · guess · inference · prediction
ground truthhypothesis
Testable proposed explanation
conjecture · speculation · assumption · theory · belief
ground, background, underground, grounds, playground, grounded, grounding, groundless, campground