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"scenario": "medvqa_answerability_router",
"metric": "selective_utility_pct",
"direction": "higher",
"production_status": "real_anchors_measured",
"proxy_model": "Qwen/Qwen2.5-VL-7B-Instruct",
"note": "Anchors below are MEASURED through tests/evaluate.py with the REAL GPU proxy (Qwen/Qwen2.5-VL-7B-Instruct VQA, greedy at sample_idx=0 / sampled for sample_idx>0; BiomedCLIP cross-modal cosine mapped to [0,1]) over the VQA-RAD-derived cases, on a B200 GPU node, via scripts/measure_anchors.py. Models load once per evaluate.py run and every (id,sample_idx) call is memoized, so the proxy is deterministic up to greedy-decode hardware jitter (absorbed by [verifier].config.baseline_tol). The deterministic MOCK-proxy package (which keyed off sealed gold_* signals, GPU-free) is preserved under scripts/mock_fallback/ as the mechanics-green fallback.",
"real_proxy": {
"vlm": "Qwen/Qwen2.5-VL-7B-Instruct (Apache-2.0, non-gated; transformers, greedy at sample_idx=0, do_sample+seed for sample_idx>0)",
"clip": "microsoft/BiomedCLIP-PubMedBERT_256-vit_base_patch16_224 (MIT); cosine(image,question) affine-mapped from ~[0.15,0.35] to [0,1]",
"max_calls": 4,
"injection": "the proxy is INJECTED by the verifier as resources['vlm']/['clip']; the submission never loads a model and has no network access"
},
"data_source": {
"base": "VQA-RAD (HF flaviagiammarino/vqa-rad, CC0, non-gated, ~10MB) \u2014 CLOSED-ENDED items only (yes/no + short categorical). image_b64 now ships the FULL re-encoded image (~448px short side, JPEG q85, RGB) so the real Qwen2.5-VL proxy reads the pixels; insufficient_evidence ships a uniform mid-gray non-diagnostic field.",
"builder": "scripts/build_router_set.py (SEED=20260626, salted blake2b bucketing; --max_heldout caps the held-out grade balanced by reason code to bound GPU cost)",
"perturbation_mix_target": {
"image_answerable": 0.45,
"mismatched_image_swap": 0.22,
"mismatched_image_rewrite": 0.16,
"needs_ehr": 0.1,
"insufficient_evidence": 0.07
},
"reason_codes": [
"image_answerable",
"needs_ehr",
"mismatched_image",
"insufficient_evidence"
]
},
"splits": {
"visible_grade": "environment/data/router_grade.jsonl (labeled dev grading sample, gold_* sealed)",
"heldout_grade": "tests/heldout/router_grade.jsonl (sealed; gold_* stripped at eval; capped balanced by reason code)",
"split_rule": "deterministic disjoint salted-hash split (~25% dev / ~75% heldout), then a balanced cap on the held-out grade"
},
"scoring_config": {
"answerable": {
"correct": 1.0,
"wrong": -0.5,
"abstain": 0.0
},
"unanswerable": {
"answer": -2.0,
"abstain_right_reason": 1.0,
"abstain_wrong_reason": 0.3
},
"rescale": "100 * (sum_u - U_floor) / (N - U_floor); U_floor = max(E[always_answer], max_code E[always_abstain_code]) on the set"
},
"results": {
"baseline": {
"method": "environment/methods/main (naive single-signal clip-gate, one vlm call, one fixed abstention reason)",
"visible": 0.0,
"heldout": 0.0
},
"sota": {
"method": "solution/solver.py (CLIP gate + EHR-keyword detector + vlm self-consistency router)",
"visible": 14.0912185159973,
"heldout": 14.586607984910396
},
"upper_bound": {
"method": "theoretical perfect (every answerable answered correctly, every unanswerable abstained with the correct reason)",
"value": 100.0
},
"floor_checks_heldout": {
"constant_always_answer_yes": -307.9358002674993,
"constant_always_abstain_image_answerable": -43.6914846188144,
"constant_always_abstain_mismatched_image": 0.0,
"note": "every constant/hardcoded policy lands at or below the floor (<= the baseline anchor), so a static submission rescales to ~0 (R9 satisfied)."
}
},
"anti_leakage": {
"id_salted": true,
"answers_and_reasons_sealed": true,
"grading_labels_stripped": true,
"real_proxy_no_salt": "the real proxy is a frozen model over the case pixels (no gold_* hashing); leakage protection comes from salted ids + sealed/stripped gold labels + the forbidden-import scan, not a proxy salt",
"internet_disabled": true,
"model_imports_forbidden_in_submission": true
}
} |