{"id":"W65293495","doi":"10.1017/s0002731600048605","title":"A Formal Test of the Origin of Variation in North American Early Paleoindian Projectile Points","year":2009,"lang":"en","type":"article","venue":"American Antiquity","topic":"Pleistocene-Era Hominins and Archaeology","field":"Social Sciences","cited_by":78,"is_retracted":false,"has_abstract":true,"ca_institutions":"Simon Fraser University","funders":"","keywords":"Projectile point; Variation (astronomy); Biome; Regional variation; Pleistocene; Geography; Period (music); Physical geography; Point pattern analysis; Geology; Paleontology; Ecology; Spatial ecology; Biology; Ecosystem","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":[0.0004030475,0.00008377263,0.0002779601,0.00009619092,0.0001233199,0.000006144465,0.0003143846,0.00002182578,0.00001054347],"category_scores_gemma":[0.0002977732,0.00006709791,0.0000665507,0.001404961,0.001534306,0.0001391422,0.00004910595,0.000125354,0.000001770765],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0000473842,"about_ca_system_score_gemma":0.0002800072,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.01351976,"about_ca_topic_score_gemma":0.2105806,"domain_scores_codex":[0.9987879,0.0002123356,0.0002640152,0.0001634161,0.0002376117,0.0003347623],"domain_scores_gemma":[0.999115,0.000138263,0.0004394608,0.0001913114,0.00006123658,0.00005473136],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00002194644,0.0001341074,0.9690825,0.000002577364,0.000003807919,0.000001304419,0.01238304,0.000001913722,0.0004352508,0.001329153,0.00001162291,0.01659282],"study_design_scores_gemma":[0.0001484844,0.0004292873,0.9975111,0.000007205428,0.000005324939,5.681338e-7,0.001125718,0.00001913449,0.0003364676,0.0001336323,0.000206839,0.00007619113],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9958366,0.000002923953,0.00003984986,0.001166416,0.00004267174,0.0002482522,0.00002373705,0.00001450489,0.002625015],"genre_scores_gemma":[0.9990553,0.00003248667,0.000623251,0.0002029876,0.00004152433,0.000004626611,0.000001230763,0.000003927057,0.00003462023],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.1970608,"threshold_uncertainty_score":0.9930493,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01417660117943689,"score_gpt":0.29025615472496,"score_spread":0.2760795535455232,"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."}}