{"id":"W2769496172","doi":"10.1017/aaq.2017.53","title":"RADIOCARBON DATING OF TECHNOLOGICAL TRANSITIONS: THE LATE HOLOCENE SHIFT FROM ATLATL TO BOW IN NORTHWESTERN SUBARCTIC CANADA","year":2017,"lang":"en","type":"article","venue":"American Antiquity","topic":"Archaeology and ancient environmental studies","field":"Earth and Planetary Sciences","cited_by":11,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Radiocarbon dating; Holocene; Archaeology; Geology; Subarctic climate; Paleontology; Physical geography; Geography","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001514244,0.00008346536,0.0001787985,0.00001704163,0.0003333179,0.000007867669,0.0003478892,0.00002160555,0.0000708254],"category_scores_gemma":[0.00004144964,0.00005648133,0.00002393758,0.00007858486,0.00132437,0.00005799577,0.00006243103,0.0001339227,0.000006290506],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00000782085,"about_ca_system_score_gemma":0.00002607622,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.841199,"about_ca_topic_score_gemma":0.9190308,"domain_scores_codex":[0.9993052,0.00005598387,0.0001364203,0.0001678376,0.0001257228,0.0002087956],"domain_scores_gemma":[0.999499,0.0001008372,0.0001092103,0.0002452379,0.000003014483,0.00004271056],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00002013049,0.000008235043,0.9781764,0.000001443333,0.00000870767,0.00001599702,0.0002967384,0.0001900497,0.00002895302,0.00000961528,0.000005868305,0.02123783],"study_design_scores_gemma":[0.00007638599,0.00006448285,0.9984563,0.00001121227,0.000006412259,0.00000108782,0.0006976228,0.0001880844,0.0001585718,0.0001478472,0.0001182557,0.00007375616],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9959397,0.0001053595,0.00004681502,0.003179608,0.00003534137,0.00009572293,0.0001057097,0.000008749461,0.0004830202],"genre_scores_gemma":[0.9993054,0.00007686547,0.0001630263,0.0004087326,0.00001090128,0.000001299525,0.00001811305,0.000001401143,0.00001421091],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.07783184,"threshold_uncertainty_score":0.4879697,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01166711980541281,"score_gpt":0.216287429609409,"score_spread":0.2046203098039962,"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."}}