concept:availability-time
Availability Time
Availability Time in the context of production machine-learning systems.
Lessons
Formal explanations, examples, simulations, and checkpoints.
Data & feature foundations
Point-in-time-correct features
Point-in-time correctness preserves the knowledge boundary of the original decision.
Data & feature foundationsFeature transformations that survive production
Ship the fitted representation contract with the model, in the same order and with the same edge cases.
Data & feature foundationsBatch, stream, and training-serving parity
Parity starts with one temporal meaning, then proves every execution path implements it.
Courses & assignments
Dependency-authoritative learning units.
Casebook
Reported facts and course reconstructions.