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Glossary

Current frozen system · HydroCore-v5 · v0.2.1 · source snapshot 4bbf6fa3ff9f

Terms used across the final V5 documentation, API, and operator experience.

Model and evidence

HydroCore-v5 — the final frozen learned Sentinel, 4,182,612-parameter small variant. Exact identity: Final system.

Sentinel — the only valid trained task family in the final release. Runtime learned outputs are source_node, event_presence, event_cause, evidence_sufficiency, and relative_strength.

Architecture head — a neural output structure present in the model definition/configuration. Presence does not prove the head received valid supervision.

Runtime-enabled output — a learned output explicitly allowed by the V5 release/finalist freeze to be surfaced at runtime.

Operational authority — the component permitted to make a governed workflow decision. In the final system OOD, sample ranking, and plan generation remain deterministic; plan verification is simulator-based; approval is human.

Classical signature — simulator-derived source-response evidence used by the non-neural localization branch.

Fusion — combination of classical and learned source beliefs under the frozen fuse_source_probabilities-v1 configuration.

Authority labels

ADVISORY — can influence evidence/prediction, cannot authorize an operational state.

CALIBRATED ADVISORY — advisory output with applicable conformal semantics.

DETERMINISTIC — algorithmic/rule control with operational workflow authority.

SIMULATOR_VERIFIED — response candidate completed WNTR/EPANET verification and passed configured modeled constraints.

HUMAN_APPROVED — a human explicitly recorded approval. This is not infrastructure actuation.

Autonomous actuation — software directly commanding field infrastructure. HydroSwarm has none.

Calibration and OOD

Conformal candidate set — a set of candidate source nodes produced under a split-conformal artifact. Its coverage guarantee is marginal over an applicable population, not a per-incident confidence.

Coverage — fraction of applicable evaluated cases whose conformal set contains the true source. Always read with population/denominator and calibration applicability.

calibrated_rate — fraction of cases where calibration was applicable. The final novel-topology split has calibrated_rate=0, so its raw inclusion statistic is not calibrated coverage.

OOD (out of distribution) — evidence that an incident/topology lies outside conditions authorized by the frozen calibration/runtime policy.

Fail closed — withhold or reduce action authority when required evidence/assets/applicability are missing rather than silently substituting a confident result.

Sampling and planning

Scout — the sampling stage. In the final system the authoritative selector is deterministic rank_sample_locations; learned Scout heads are non-authoritative.

Strategist — response-planning model/head concept. Learned Strategist outputs are non-authoritative in the final system; authoritative candidate generation is deterministic generate_response_plans.

Sample budget — governed bound on evidence-collection recommendations during an incident.

VERIFIED — a plan completed exact modeled verification and passed configured constraints. Not synonymous with real-world safe or approved.

REJECTED — a candidate failed verification/completeness/constraint checks.

STALE verification — verification computed under an earlier evidence context; cannot be approved after the context changed.

APPROVED — a separate human approval event. No automatic execution follows.

Evaluation governance

Development evidence — data/results available during architecture/capability work before final freeze.

Finalist freeze — M11.2 artifact fixing checkpoint, calibration, runtime outputs, authority, and limitations before final test.

Locked-final test — 105-case final applicable stress population, opened once in M11.6.

Locked-topology test — 20-case final novel-topology/fail-closed population, opened in the same one-time M11.6 execution.

Descriptive/non-gating metric — reported scientific measurement that did not determine the hard pass/fail gate. M11.6 explicitly treats Top-1/Top-3/MRR and novel-topology predictive metrics this way.

Hard safety counter — preregistered invariant-violation count. All 15 M11.6 counters were zero.

Opened record — immutable M11.6 record marking that the one-time lock was consumed before evaluation results were produced.

Post-lock tuning — model/system tuning after observing locked results. Final governance records false.

Experience/provenance modes

LIVE — real current backend incident and current computation.

REFERENCE INCIDENT — deterministic checksummed replay of a frozen WNTR-backed workflow; useful for demonstrating product flow, not final V5 benchmark evidence.

DEMO_FALLBACK / ILLUSTRATIVE DEMO — hand-authored fallback content, explicitly not real current scientific computation.

Replay — inspection of a recorded incident/audit history; not a new model run.

Historical terms

HydroCore-v4 — prior frozen generation retained for provenance. Its metrics and lock status are historical, not current V5 claims.

HydroCore-S/M/L historical benchmark — earlier architecture-generation research retained under historical reports; not the final V5 evidence.