fittingcorpus / results /cv2_position_support.json
Tarush-AI's picture AnonymousInterpScience's picture
Duplicate from AnonymousInterpScience/pythia-jlens-artifacts
3b151ef
Raw History Blame Contribute Delete
9.16 kB
{
"experiment": "CV2 \u2014 positional support audit",
"status": "MEASUREMENT ONLY \u2014 no registered decision rule; this establishes or refutes the mismatch flagged in docs/validity/CONSTRUCT_VALIDITY.md section 4.2",
"model": "EleutherAI/pythia-410m-deduped",
"fitting_support": {
"source": "src/fastfit.py:116 -> jlens.fitting.valid_position_mask(seq_len, skip_first)",
"skip_first": 16,
"max_seq_len": 128,
"excludes": "first skip_first positions (attention sink) and the final position (no next-token target)",
"inclusive_range": [
16,
126
]
},
"readout_convention": "STRIPPED (corrected). Position computed on the item alone, then shifted by the prefix length \u2014 matches t36_qladder.py:27-31",
"by_set": {
"association": {
"n_items": 102,
"readout_rule": "last",
"median_prompt_tokens": 28,
"Q0": {
"median_read_pos": 28,
"min": 19,
"max": 49,
"n_in_support": 102,
"frac_in_support": 1.0
},
"prefixed": {
"median_read_pos": 156,
"min": 147,
"max": 177,
"n_in_support": 0,
"frac_in_support": 0.0
}
},
"multihop": {
"n_items": 93,
"readout_rule": "last",
"median_prompt_tokens": 15,
"Q0": {
"median_read_pos": 15,
"min": 8,
"max": 40,
"n_in_support": 45,
"frac_in_support": 0.4838709677419355
},
"prefixed": {
"median_read_pos": 143,
"min": 136,
"max": 168,
"n_in_support": 0,
"frac_in_support": 0.0
}
},
"multilingual": {
"n_items": 107,
"readout_rule": "last",
"median_prompt_tokens": 10,
"Q0": {
"median_read_pos": 10,
"min": 5,
"max": 26,
"n_in_support": 6,
"frac_in_support": 0.056074766355140186
},
"prefixed": {
"median_read_pos": 138,
"min": 133,
"max": 154,
"n_in_support": 0,
"frac_in_support": 0.0
}
},
"order-ops": {
"n_items": 55,
"readout_rule": "last",
"median_prompt_tokens": 8,
"Q0": {
"median_read_pos": 8,
"min": 6,
"max": 18,
"n_in_support": 1,
"frac_in_support": 0.01818181818181818
},
"prefixed": {
"median_read_pos": 136,
"min": 134,
"max": 146,
"n_in_support": 0,
"frac_in_support": 0.0
}
},
"poetry": {
"n_items": 98,
"readout_rule": "last_newline",
"median_prompt_tokens": 26,
"Q0": {
"median_read_pos": 18,
"min": 16,
"max": 22,
"n_in_support": 98,
"frac_in_support": 1.0
},
"prefixed": {
"median_read_pos": 146,
"min": 144,
"max": 150,
"n_in_support": 0,
"frac_in_support": 0.0
}
},
"typo": {
"n_items": 96,
"readout_rule": "last",
"median_prompt_tokens": 8,
"Q0": {
"median_read_pos": 8,
"min": 6,
"max": 14,
"n_in_support": 0,
"frac_in_support": 0.0
},
"prefixed": {
"median_read_pos": 136,
"min": 134,
"max": 142,
"n_in_support": 0,
"frac_in_support": 0.0
}
}
},
"overall": {
"Q0": {
"n": 551,
"median_read_pos": 14,
"min": 5,
"max": 49,
"n_in_support": 252,
"frac_in_support": 0.4573502722323049
},
"prefixed": {
"n": 551,
"median_read_pos": 142,
"min": 133,
"max": 177,
"n_in_support": 0,
"frac_in_support": 0.0
}
},
"VERDICT": "Q0 reads inside the fitting support on 45.7% of items (median position 14); prefixed rungs on 0.0% (median 142). Fitting support is positions 16..126.",
"provenance": {
"schema_version": 1,
"experiment": "CV2",
"utc": "2026-08-30T00:19:04+00:00",
"script": {
"path": "experiments/cv2_position_support.py",
"sha256": "fee6460d8d930d3c9ebc138a29def2533ca5bd8fc2392daceed2b0644e20abbc",
"n_lines": 145
},
"git": {
"commit": "c9c49697e295c0fec4225552836fc9733b279f75",
"commit_short": "c9c49697e295",
"git_repository_present": true,
"branch": "pythia",
"dirty": true,
"dirty_files": [
"CLAUDE.md",
"README.md",
"corpora/manifest_ood.json",
"docs/HANDOFF.md",
"docs/REPO_REVIEW_PROMPT.md",
"docs/context/AGGREGATION_POLICY.md",
"docs/context/CONTEXT.md",
"docs/context/IMPLEMENTATION_RULES.md",
"docs/context/STATE.md",
"docs/experiments/INDEX.md",
"docs/experiments/METRICS.md",
"docs/experiments/PROPOSED.md",
"docs/experiments/PROVENANCE.md",
"docs/experiments/descriptions/E64.md",
"docs/experiments/descriptions/EN1.md",
"docs/experiments/preregs/CV3_margins.md",
"docs/experiments/preregs/CV4_capability_ladder.md",
"docs/experiments/preregs/CV5_metric_sensitivity.md",
"docs/experiments/preregs/CV6_per_family_ladder.md",
"docs/experiments/preregs/CV7_1b_rung.md",
"docs/experiments/preregs/DN1_design_nulls.md",
"docs/experiments/preregs/E33_logit_baseline.md",
"docs/experiments/preregs/E36_qladder.md",
"docs/experiments/preregs/E48_crossover.md",
"docs/experiments/preregs/E48b_containment.md",
"docs/experiments/preregs/E48c_exposure_vs_read.md",
"docs/experiments/preregs/E51_interaction.md",
"docs/experiments/preregs/E52_factorial.md",
"docs/experiments/preregs/E53_ladder_summary.md",
"docs/experiments/preregs/E55_matrix_robustness.md",
"docs/experiments/preregs/E56_predictor_registry.md",
"docs/experiments/preregs/E57_grid_variance_ci.md",
"docs/experiments/preregs/E58_algebra_audit.md",
"docs/experiments/preregs/E59_read_dose_response.md",
"docs/experiments/preregs/E60_fitter_determinism.md",
"docs/experiments/preregs/E61_randomized_network_null.md",
"docs/experiments/preregs/E62_ladder1b_corrected_band.md",
"docs/experiments/preregs/E65_training_axis_floor.md",
"docs/experiments/preregs/E66b_determinism_floor.md",
"docs/experiments/preregs/OS1_operator_space.md",
"docs/experiments/preregs/P0_t52_parallel_port.md",
"docs/experiments/preregs/R1_grid_rstrip.md",
"docs/experiments/preregs/R2_e48_rstrip_arm.md",
"docs/experiments/preregs/R3_ladder410_cpu.md",
"docs/experiments/preregs/R4_corrections.md",
"docs/experiments/preregs/R4b_e36_rstrip.md",
"docs/experiments/preregs/R5_corpus_axis_uncertainty.md",
"docs/experiments/preregs/R6_within_source_resampling.md",
"docs/experiments/preregs/R8_ladder_rstrip_S2.md",
"docs/experiments/preregs/R9_permutation_calibrated_min.md",
"docs/experiments/preregs/superseded/PREREG_E48_CROSSOVER.md",
"docs/reproducibility/ARTIFACTS.md",
"docs/reproducibility/PAYLOAD_REDACTIONS.md",
"docs/reproducibility/RELEASE.md",
"docs/reproducibility/REVIEWER_REPRO.md",
"docs/reproducibility/T1_SWEEP_SPEC.md",
"docs/reproducibility/review-snapshot-2026-08-19/MANIFEST.sha256",
"docs/reproducibility/review-snapshot-2026-08-19/PROVENANCE.md",
"docs/reproducibility/review-snapshot-2026-08-19/REDACTIONS.md",
"docs/reproducibility/review-snapshot-2026-08-19/review/EXTERNAL_REVIEW.md",
"docs/reproducibility/review-snapshot-2026-08-19/review/reproducibility/FINDINGS.md",
"docs/reproducibility/review-snapshot-2026-08-19/review/reproducibility/PHASE_A_ACCOUNT.md",
"docs/reviews/REVIEW_INSIGHTS_2026-08-25.md",
"docs/validity/CONSTRUCT_VALIDITY.md"
],
"dirty_diff_sha256": "6b143c292229b3d2480d1b73243675f0db5e23b27f66e4215e0a9c1947a761a8",
"describe": "c9c4969-dirty"
},
"argv": [
"experiments/cv2_position_support.py"
],
"cwd": ".",
"inputs": [
{
"path": "jacobian-lens/data/evaluations/lens-eval-association.json",
"sha256": "d1a98cd4911b594282e74168091c77d849dae18ffe2acb5761074853f327d71c",
"bytes": 24228,
"exists": true
},
{
"path": "jacobian-lens/data/evaluations/lens-eval-multihop.json",
"sha256": "50b7e4c9255291c0ca2a8e94615be9f44531fa57bb1a844e4f9616056d987416",
"bytes": 21869,
"exists": true
},
{
"path": "jacobian-lens/data/evaluations/lens-eval-multilingual.json",
"sha256": "fa70b9bd89416a6d8d985a80dc628b109ae6fd3b25b9275c0fc5065d7ff4a0ef",
"bytes": 24284,
"exists": true
},
{
"path": "jacobian-lens/data/evaluations/lens-eval-order-ops.json",
"sha256": "b203206d16ff628152cc86f3838604e06cb54776f3e14fa1c34f150db8bc7560",
"bytes": 9589,
"exists": true
},
{
"path": "jacobian-lens/data/evaluations/lens-eval-poetry.json",
"sha256": "6aeb3415c5a5c3f3827c9efe63f006de02f5ef39a816bbac68e15e733aba60cc",
"bytes": 21533,
"exists": true
},
{
"path": "jacobian-lens/data/evaluations/lens-eval-typo.json",
"sha256": "9d05e16b7234a57d0773d120a4e1c4e94fd3bc2235a8125d4200a70e60ab17aa",
"bytes": 14646,
"exists": true
}
],
"env": {
"python": "3.14.2",
"torch": "2.13.0",
"transformers": "5.14.1",
"numpy": "2.5.1",
"platform": "macOS-26.5.2-arm64-arm-64bit-Mach-O",
"machine": "arm64",
"hostname": "<redacted for double-blind review>",
"tf32": {
"allow_tf32_matmul": false,
"allow_tf32_cudnn": true,
"NVIDIA_TF32_OVERRIDE": null
},
"threads": {
"torch_num_threads": 10,
"torch_num_interop_threads": 14,
"OMP_NUM_THREADS": null,
"os_cpu_count": 14
}
},
"payload_sha256": "1eb1ab9b76e77d6060876485b34291cf9e1c525a755ae0166d5f7ec98f6d0d92"
}
}