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Author SHA1 Message Date
Khalim Conn-Kowlessar
35a7c07812 docs(adr): ADR-0030 — SAP-version-aware, component-first EPC Prediction validation 
Records the grilling-session decisions amending ADR-0029's validation:
- Source cohort keeps all cert vintages (components are agnostic of the SAP
  methodology that rated them); only the held-out validation TARGET is
  restricted to SAP 10.2. Amends ADR-0029 decision 5 ("pre-SAP10 dropped").
- Component Accuracy (predicted vs API actual components) is the primary,
  calculator-independent signal. calc(predicted) vs calc(actual) rejected
  (circular ground truth, hides calculator error); neighbour-mean-lodged-SAP
  baseline rejected (mixes SAP versions). calc(predicted) vs API-lodged
  SAP/carbon/PE kept as a secondary, calculator-floored guard.
- Two tiers: committed anonymized fixture (ratcheting CI gate) + bulk-export
  national battle-test on harness/epc_bulk.py + harness/cohort.py, emitting
  accuracy + a failure taxonomy, re-baselining the gate floors.

CONTEXT.md: Comparable Properties corrected to all-vintage source; new
Component Accuracy term. ADR-0029 Validation section marked superseded.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
 2026-06-14 08:47:58 +00:00
Khalim Conn-Kowlessar
008a1b2783 docs(adr): EPC Prediction from Comparable Properties (ADR-0029) 
Grill-with-docs outcome: deterministic neighbour synthesis (NOT ML) of an
EPC-less Property's EpcPropertyData picture, scored via Sap10Calculator.
Six decisions — predict-components-not-SAP; deterministic k-NN; fetch-phase
fallback behind a pure EpcPrediction service + ComparableProperties port;
hybrid synthesis (cohort-mode categoricals + coherent template structure +
overrides); filter-then-relax cohort weighted geo x recency x similarity;
dual-use gap-fill + anomaly flags. Frozen postcode-clustered corpus backs
leave-one-out validation. CONTEXT.md: new EPC Prediction term, Comparable
Properties refined, ML framing corrected.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
 2026-06-13 23:36:19 +00:00