{"id":"W1999429526","doi":"10.1073/pnas.0709372104","title":"Evidence for declines in human population densities during the early Upper Paleolithic in western Europe","year":2008,"lang":"en","type":"article","venue":"Proceedings of the National Academy of Sciences","topic":"Pleistocene-Era Hominins and Archaeology","field":"Social Sciences","cited_by":82,"is_retracted":false,"has_abstract":true,"ca_institutions":"Trent University; Université Laval","funders":"National Science Foundation","keywords":"Upper Paleolithic; Middle Paleolithic; Population; Period (music); Geography; Radiocarbon dating; Human evolution; Context (archaeology); Ecology; Effective population size; Biology; Genetic diversity; Demography; Archaeology; Pleistocene","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":[0.002093848,0.0000622716,0.0001254922,0.0001738221,0.0006307663,0.0000157953,0.0006511697,0.00006100693,0.000002594938],"category_scores_gemma":[0.001399442,0.00003989824,0.00004151684,0.0006798016,0.001696315,0.0005655361,0.00009783999,0.0001245147,2.621302e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00004042957,"about_ca_system_score_gemma":0.00004670363,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002348307,"about_ca_topic_score_gemma":0.0003457205,"domain_scores_codex":[0.9986404,0.00003131411,0.0003195987,0.0001761588,0.0006425381,0.0001899831],"domain_scores_gemma":[0.9991668,0.0003616313,0.0002570577,0.000007431262,0.0001883435,0.00001868431],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.00001211713,0.0000114403,0.9658883,0.00001711334,0.00000126213,1.883108e-8,0.005336824,0.00005494451,0.006560695,0.02208493,0.000005698196,0.00002670486],"study_design_scores_gemma":[0.0001159097,0.000019248,0.9795442,0.0001308772,0.000001664968,0.000002382765,0.0004624421,0.00006188547,0.002768333,0.01681438,0.00002969839,0.00004903809],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9943959,0.0001322245,2.152903e-7,0.004802055,0.00001866309,0.0002405041,0.000002202963,0.000005978307,0.0004022743],"genre_scores_gemma":[0.9991488,0.0001093554,0.0001846007,0.0001377023,0.0001045915,0.00001902073,4.348775e-8,0.000002550866,0.000293319],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01365589,"threshold_uncertainty_score":0.6250145,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.128441572288757,"score_gpt":0.3735951312817695,"score_spread":0.2451535589930125,"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."}}