Train HPM v2

HPM v2 is the depth-aware shooting feature ablation of Value-Conditioned Aging HIPSTER PM. It retains the full forward player-prior and bounded hierarchical portable-matchup context contract while replacing the raw three-point lineup totals with depth, capped capacity, and concentration features.

uv run nba-train-hpm-v2 --through-season 2025-26 \
  2>&1 | tee artifacts/logs/train-hpm-v2-2025-26.log

Follow a running job with:

tail -f artifacts/logs/train-hpm-v2-2025-26.log

The immutable output is written below:

artifacts/models/forward_hpm_v2_depth_aware_shooting/2025-26/

Each run includes season_context_metadata.parquet, which records the feature set and its exact column list for every seasonal context fit. The job writes cohort_metrics.parquet, game and possession predictions, player ratings, seasonal context models, and a manifest after the full recursive run succeeds.