| # Archive — experimental notebooks | |
| Notebooks **04–11** and **13** document iterative experiments (ensembles, tuning, augmentation, stable production runs, expert Toxic-BERT, hyper-optimization sprints). They are kept for reproducibility but are **not** part of the primary project narrative. | |
| **Primary storyline** (parent `notebooks/` folder): | |
| | Notebook | Focus | | |
| |----------|--------| | |
| | `01_eda_v2` | Data audit, Safe vs Toxic | | |
| | `02_preprocessing_v2` | Cleaning pipeline | | |
| | `03_vectorization_v2` | TF-IDF features | | |
| | `12_golden_baseline_strategy` | Frozen BERT + golden baseline metrics | | |
| | `14_final_meta_stacking` | **Production** hybrid meta-feature stacking | | |
| Re-run production artifacts: | |
| ```bash | |
| uv run python -m src.experiments.notebook_14_final_stack | |
| ``` | |