| """Native-answer scoring for the public panels; Python standard library only. |
| |
| score(record, answers) -> {prediction, correct}; invalid answers raise ValueError. |
| answers maps question IDs to {'choice': label}, {'noul': probability}, or {'score': number}. |
| Only task.question_ids are read. No model calls are made. |
| """ |
| import math |
|
|
|
|
| def number(x): |
| if isinstance(x, bool) or not isinstance(x, (int, float)) or not math.isfinite(x): |
| raise ValueError('Expected a finite numeric model output') |
| return float(x) |
|
|
|
|
| def score(record, answers): |
| task = record['task'] |
| qids = task['question_ids'] |
| mode = task['mode'] |
| try: |
| if mode == 'choice': |
| if len(qids) != 1: |
| raise ValueError('Choice expects one scoring target') |
| pred = answers[qids[0]]['choice'] |
| options = record['clean']['questions'][qids[0]]['criteria'] |
| if pred not in options: |
| raise ValueError('Choice label is not in the options') |
| elif mode == 'score': |
| if len(qids) != 1: |
| raise ValueError('Score expects one scoring target') |
| pred = number(answers[qids[0]]['score']) |
| return {'prediction': pred, 'correct': abs(pred - record['gt']) <= 0.5} |
| elif mode == 'noul': |
| probs = [number(answers[q]['noul']) for q in qids] |
| if any(p < 0 or p > 1 for p in probs): |
| raise ValueError('Noul probability must be in [0,1]') |
| labels = task['labels'] |
| if 'positive_label' in task: |
| if len(probs) != 1 or len(labels) != 2: |
| raise ValueError('Binary Noul expects one output and two labels') |
| positive = task['positive_label'] |
| negative = next(v for v in labels if v != positive) |
| pred = positive if probs[0] >= 0.5 else negative |
| else: |
| if len(probs) != len(labels): |
| raise ValueError('Multi-Noul question and label counts differ') |
| total = sum(probs) |
| norm = [p / total for p in probs] if total else [1 / len(probs)] * len(probs) |
| pred = labels[max(range(len(labels)), key=lambda i: norm[i])] |
| else: |
| raise ValueError('Unknown mode') |
| except (KeyError, TypeError, StopIteration) as error: |
| raise ValueError('Missing or malformed target model answer') from error |
| return {'prediction': pred, 'correct': pred == record['gt']} |
|
|
