Adds `_per_decile_residuals` and writes `residuals_<target>.json` next to metrics.json. Buckets test-set rows by deciles of the true target value; each bucket carries count + MAPE + MAE + mean residual + true_min/max. Lets us tell whether errors concentrate in the tails of the true distribution (e.g. SAP<40 / SAP>85) vs the mid-band — which the global MAPE alone hides. Baseline for slice 16's MAPE-improvement ablations. |
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|---|---|---|
| .. | ||
| ara | ||
| ml_training_data | ||
| README.md | ||
Services
Each subdirectory is a deployable unit — typically a Lambda image. Own pyproject.toml, own Dockerfile, own deps. Lambda bundle contains only that service's deps + its workspace deps.
| Service | Purpose |
|---|---|
ara/ |
The Domna retrofit modelling backend — ingestion + modelling pipelines, all 9 services in PRD §9.2. |
Other Domna services (address2uprn, hubspot, pashub, ecmk, magicplan) live in the legacy backend/ and etl/ trees for now; they are slated to migrate here as their owners pick them up — see PRD §11. When that work starts, scaffold the service under services/<name>/ and add it to the workspace members in the root pyproject.toml.
Service boundary
A service can import domain.*, import repos.*, import fetchers.*, import utils.* (workspace deps). It cannot import another service's modules — they are separate distributions with no cross-import path. This is the structural enforcement of the modelling/ingestion separation (ADR-0003).