Datasets:
Submission: rony/gemma3-270m-typed-decisions (Gemma 3 270M, fine-tuned on train)[General]
Model: https://huggingface.co/rony/gemma3-270m-typed-decisions
Mode: fine-tuned on train (all four workflows), for the "Fitted or fine-tuned on train" table.
Scored on LocalLLaMA/typed-decisions all/test (400 cases, 2000 decisions), never seen in training.
| Model | Kind | Accuracy ↑ | KL from gold ↓ | Brier ↓ | ECE ↓ | Latency |
|---|---|---|---|---|---|---|
| gemma3-270m-typed-decisions (Gemma 3 270M, full fine-tune) | fine-tuned on train |
0.702 | 0.1555 | 0.0914 | 0.1282 | 68 ms / case (cuda, Apple Silicon) |
ECE is computed per question and averaged over the 20 questions (closest to the README's reference rows); pooled over all decisions it is 0.0971.
By question type
| accuracy | kl | brier | ece | |
|---|---|---|---|---|
| choice | 0.635 | 0.190 | 0.102 | 0.083 |
| noul | 0.770 | 0.124 | 0.093 | 0.060 |
| score | 0.700 | 0.153 | 0.082 | 0.157 |
| OVERALL | 0.702 | 0.155 | 0.091 | 0.097 |
By workflow
| accuracy | kl | brier | ece | |
|---|---|---|---|---|
| agent_trace_observability | 0.626 | 0.117 | 0.072 | 0.105 |
| customer_service | 0.770 | 0.129 | 0.069 | 0.118 |
| invoice_processing | 0.666 | 0.291 | 0.176 | 0.039 |
| security_incidents | 0.744 | 0.086 | 0.048 | 0.163 |
| OVERALL | 0.702 | 0.155 | 0.091 | 0.097 |
Baselines on the same split: Prior accuracy 0.478 / KL 0.327; zero-shot Gemma 3 270M accuracy 0.279 / KL 1.068.
Setup. Full fine-tune of google/gemma-3-270m-it (AdamW, lr 3.00e-05, weight decay 0.010, warmup 0.10,
effective batch 16, 4 epochs; hyperparameters from Optuna search (hpo/best_hparams.json); epoch picked on
held-out-train KL).
Each question is its own forward pass (5 per case, not all five in one request); the answer distribution is the softmax
of the next-token logits over the option letters. ECE is 10-bin expected calibration error of max probability vs.
correctness. Full test distributions are in test_predictions.jsonl in the model repo, so the numbers can be re-run.
Added to Table 2 as the general entry: 0.702 accuracy, KL 0.156, Brier 0.091, ECE 0.128, 68 ms per case. Thanks.