Model/domain/epc_prediction
Khalim Conn-Kowlessar fa11df56c2 fix(epc-prediction): dedupe re-lodgements + leak-free leave-one-out (ADR-0029)
The register lists every historical lodgement, so a postcode cohort
contains the same physical address many times (LS61AA: 15 certs / 11
addresses; NG71AA: 15 / 9 — "FLAT 3" appears 3x in each). Two
consequences:

  - Production: a re-lodged neighbour was counting up to 3x towards the
    cohort mode. select_comparables now dedupes candidates to the latest
    cert per address (one comparable per real neighbour) — Comparable
    gains address + registration_date (the register metadata its docstring
    already anticipated, read straight off the cached payload).

  - Validation: leave-one-out leaked — predicting a flat from a near-
    identical re-lodgement of itself. The harness now holds out a whole
    address (excludes every sibling cert) and evaluates on the latest cert
    per address (the best ground truth).

Removing the leak gives the honest numbers (19 distinct addresses):
  wall_construction      93.1% -> 89.5%
  construction_age_band  65.5% -> 52.6%
  roof_construction      79.3% -> 68.4%
  floor_area mean|.|     37.9  -> 52.6 m2
The earlier figures were inflated by self-leakage; these are the real
accuracy to beat.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-14 00:40:23 +00:00
..
__init__.py feat(epc-prediction): Comparable Properties selection ladder (ADR-0029) 2026-06-13 23:44:57 +00:00
comparable_properties.py fix(epc-prediction): dedupe re-lodgements + leak-free leave-one-out (ADR-0029) 2026-06-14 00:40:23 +00:00
epc_prediction.py feat(epc-prediction): cohort-mode the roof/floor/insulation/age categoricals (ADR-0029) 2026-06-14 00:31:16 +00:00
prediction_comparison.py feat(epc-prediction): classify roof/floor/insulation/age categoricals (ADR-0029) 2026-06-14 00:10:56 +00:00