{"id":"W2099640515","doi":"10.1126/science.1101456","title":"The Evolutionary Origin of Cooperators and Defectors","year":2004,"lang":"en","type":"article","venue":"Science","topic":"Evolutionary Game Theory and Cooperation","field":"Social Sciences","cited_by":345,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"","keywords":"Diversification (marketing strategy); Economics; Evolutionary dynamics; Evolutionary game theory; Microeconomics; Investment (military); Game theory; Business; Population","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":["sts"],"consensus_categories":["sts"],"category_scores_codex":[0.001263416,0.00003472968,0.00003701057,0.000034015,0.001897582,0.00004207951,0.000218865,0.00001860617,0.00001510604],"category_scores_gemma":[0.000367117,0.00002428261,0.00001163598,0.000669117,0.00324905,0.000359132,0.00003086383,0.00004186137,0.00001145512],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00008457495,"about_ca_system_score_gemma":0.0007784073,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0002104168,"about_ca_topic_score_gemma":0.0003612784,"domain_scores_codex":[0.9992707,0.00006299521,0.00008198036,0.0001165495,0.0003053088,0.0001624755],"domain_scores_gemma":[0.9995972,0.00007934638,0.0000288752,0.00008913033,0.0001444475,0.00006102982],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.000005277434,0.00001078481,0.003563037,7.770964e-7,9.014908e-7,2.152906e-7,0.002154621,0.0001443915,0.002918142,0.9897802,0.00002190679,0.001399696],"study_design_scores_gemma":[0.001075585,0.0004532498,0.3212384,0.0001013406,0.00002702985,0.00001859172,0.02533515,0.0003939656,0.01358496,0.4613115,0.175808,0.0006522625],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9905839,0.0005932209,0.0001435327,0.0009167541,0.0002266585,0.00008792768,0.000001148229,0.0000202209,0.007426633],"genre_scores_gemma":[0.9992636,0.0001646054,0.0001691628,0.00003872487,0.00004205258,0.00000350853,1.834945e-7,0.0000012725,0.0003169054],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.5284688,"threshold_uncertainty_score":0.9994636,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01202305453107174,"score_gpt":0.2954390865305217,"score_spread":0.28341603199945,"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."}}