Bryan Tegomoh / Learn
Chapter 25

Glossary and primary-source reading map

TL;DR

Use the glossary while building artifacts and consult primary documentation for changing interfaces. Sources guide learning; teaching exercises are not published research results.

Use this glossary to orient yourself while working. Learn terms through the artifact they describe, not by memorizing definitions in isolation.

Term Operational meaning
Benchmark A declared set of tasks and scoring procedures used for comparison
Eval A measurement procedure for a specified system behavior or claim
Harness The execution and recording machinery around the tested system
Scaffold Tools, prompts, control flow, and other support around a model
Reference standard The policy or evidence used to adjudicate correctness
Grader A procedure that maps observed artifacts to scores or judgments
Oracle A source of expected behavior, which may itself be fallible
Trace The observable sequence of messages, actions, and intermediate results
Holdout Cases withheld from tuning, until inspected or used for development
Leakage Information entering evaluation that invalidates the intended test
Contamination Prior exposure or overlap that undermines a capability inference
Calibration Aligning judgments or predicted confidence with reference observations
Ablation Changing or removing one component to study its contribution
Regression A previously acceptable behavior that becomes worse after a change
Sandbox A controlled execution environment with declared isolation properties
RAG Retrieval-augmented generation, adding retrieved material to model input
Groundedness Whether output claims are supported by the supplied evidence
Robustness Behavior under relevant perturbations or stress conditions
Coverage Which declared cases, conditions, or outcomes were examined

Reading map

These sources were located during preparation on October 2, 2026. Documentation and live services can change. Recheck exact interfaces before implementing an integration. Course exercises and proposed procedures are teaching designs, not published experimental results.

What to do next

Return to chapter 8 and run the kit. Write your first report. Then complete the coding lab and one domain task contract. The course becomes useful when those artifacts reveal what you understand, what you can verify, and what still requires expert review.