{"id":"W2328057613","doi":"10.5741/gems.45.4.236","title":"Ruby and Sapphire Production and Distribution: A Quarter Century of Change","year":2009,"lang":"en","type":"article","venue":"Gems & Gemology","topic":"Mineralogy and Gemology Studies","field":"Earth and Planetary Sciences","cited_by":36,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Ministry of Education, India","keywords":"Sapphire; Quarter (Canadian coin); Production (economics); Distribution (mathematics); Materials science; Optics; Geography; Archaeology; Mathematics; Economics; Physics","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.002928862,0.0004423795,0.0003578264,0.001628343,0.001562152,0.006946939,0.001032623,0.003575386,0.01877652],"category_scores_gemma":[0.005350808,0.0003615808,0.0003079597,0.003543487,0.005739222,0.008237407,0.002106832,0.003726029,0.003241087],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.008125178,"about_ca_system_score_gemma":0.00451548,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01726139,"about_ca_topic_score_gemma":0.01522036,"domain_scores_codex":[0.9982032,0.0002049663,0.000112064,0.0004555344,0.0007884828,0.0002358272],"domain_scores_gemma":[0.9968575,0.0007796156,0.0003425477,0.0003192774,0.001183038,0.0005179569],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"observational","study_design_scores_codex":[0.000249937,0.0001548829,0.004874804,0.0007251182,0.00002474485,0.0005962382,0.003241529,0.0007532465,0.003359859,0.2044232,0.1846813,0.5969151],"study_design_scores_gemma":[0.000004705608,0.00002728016,0.005806558,0.0001178485,0.000002771756,0.0001724995,0.001429131,0.0001345325,0.000437074,0.008080694,0.9837689,0.00001792471],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"commentary","genre_gemma":"empirical","genre_scores_codex":[0.0704136,0.220595,0.007115432,0.4938951,0.01177845,0.00004991072,0.001658904,0.0004444898,0.1940491],"genre_scores_gemma":[0.4987208,0.1881366,0.008023979,0.07480106,0.01101068,0.00004870174,0.001008371,0.0004898278,0.2177599],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.01877652,"threshold_uncertainty_score":0.06281376,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02199359931010132,"score_gpt":0.2162240971219648,"score_spread":0.1942304978118635,"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."}}