{"id":"W2460093923","doi":"10.1017/s0033822200032173","title":"The Radiocarbon Dating and Authentication of Iron Artifacts","year":2002,"lang":"en","type":"article","venue":"Radiocarbon","topic":"Metallurgy and Cultural Artifacts","field":"Social Sciences","cited_by":21,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Alberta","funders":"","keywords":"Radiocarbon dating; Accelerator mass spectrometry; Confusion; Geology; Carbon fibers; Geochronology; Earth science; Archaeology; Geochemistry; Environmental science; Paleontology; History; Computer science","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006165372,0.00007542822,0.0001060567,0.00002043559,0.0004987542,0.00005763862,0.0001426189,0.00005704225,0.0001962742],"category_scores_gemma":[0.0003457787,0.00005200666,0.00003584632,0.0001535764,0.0002985019,0.000142406,0.0000195419,0.00008195136,0.00004458363],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00002777446,"about_ca_system_score_gemma":0.00001148832,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.000240429,"about_ca_topic_score_gemma":0.0001381331,"domain_scores_codex":[0.9989754,0.0001898548,0.0001957516,0.0001451219,0.0002689714,0.0002249103],"domain_scores_gemma":[0.9994103,0.0001831529,0.0001211418,0.0001656926,0.00003145959,0.00008828151],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"not_applicable","study_design_scores_codex":[0.00004556363,0.0001353614,0.004135171,0.00005109725,0.00008181915,0.000006149712,0.05988101,0.00002413759,0.03795244,0.2977475,0.0006627446,0.599277],"study_design_scores_gemma":[0.003814714,0.0009068096,0.2054941,0.0005462879,0.0007059277,0.00006266747,0.04223335,0.06556768,0.04103654,0.05351203,0.5832753,0.002844658],"study_design_candidate":"design_other","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9302632,0.0009246488,0.00001060208,0.001594734,0.000175028,0.0001565383,1.566993e-7,0.00003629691,0.06683885],"genre_scores_gemma":[0.9970451,0.0006324154,0.0001116609,0.00004071805,0.0001075893,0.000006124169,9.922629e-7,0.000005404796,0.002049985],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.5964323,"threshold_uncertainty_score":0.3836065,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02937355951816977,"score_gpt":0.2585829463354951,"score_spread":0.2292093868173253,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}