{"id":"W4293138498","doi":"10.3847/1538-4357/aca5f8","title":"DESI Observations of the Andromeda Galaxy: Revealing the Immigration History of Our Nearest Neighbor","year":2023,"lang":"en","type":"article","venue":"The Astrophysical Journal","topic":"Stellar, planetary, and galactic studies","field":"Physics and Astronomy","cited_by":53,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto; Perimeter Institute; University of Waterloo","funders":"Division of Astronomical Sciences; Science and Technology Facilities Council; Canadian Space Agency; High Energy Physics; Smithsonian Astrophysical Observatory; Radcliffe Institute for Advanced Study, Harvard University; Office of Science; Commissariat à l'Énergie Atomique et aux Énergies Alternatives; Aspen Center for Physics; Harvard University; Simons Foundation; National Science Foundation; European Space Agency; National Aeronautics and Space Administration; Nuclear Safety and Security Commission; Gordon and Betty Moore Foundation; U.S. Department of Energy; Smithsonian Institution; Consejo Nacional de Ciencia y Tecnología; Ministerio de Ciencia e Innovación; John Simon Guggenheim Memorial Foundation","keywords":"Physics; Andromeda; Andromeda Galaxy; Astronomy; Astrophysics; Galaxy; k-nearest neighbors algorithm; Milky Way; Artificial intelligence","routes":{"ca_aff":true,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0001649036,0.0001473431,0.0001232497,0.0005958907,0.0004066903,0.0002929826,0.0001536078,0.0001311222,0.0009790158],"category_scores_gemma":[0.0002976629,0.0001010959,0.0001315713,0.0003619508,0.0001833047,0.0001991486,0.0005300193,0.0001751953,0.0003110061],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002546039,"about_ca_system_score_gemma":0.00009190411,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.004814235,"about_ca_topic_score_gemma":0.0104675,"domain_scores_codex":[0.9999312,0.000009150449,0.000002603995,0.00001933863,0.00002170068,0.00001591722],"domain_scores_gemma":[0.9997769,0.00002556302,0.00006059403,0.00003770641,0.00002787965,0.00007138598],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001811937,0.00004625032,0.9035016,0.0000323138,0.00006221203,0.0003386426,0.0007551049,0.001060534,0.06956821,0.0008092561,0.0007007392,0.02294398],"study_design_scores_gemma":[0.000005777477,0.00004734561,0.994485,0.000005304189,0.00000848219,0.0001482025,0.0001420028,0.001214669,0.001858886,0.000113257,0.001964539,0.000006612309],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9975821,0.0000765095,0.0001740949,0.00002489642,0.000001388222,0.000002533674,0.000199629,0.00001996416,0.001918768],"genre_scores_gemma":[0.9989612,0.00003755185,0.0004799583,0.00001057482,0.000004201746,0.000001555315,0.0002815221,0.000004424557,0.0002190916],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.004814235,"threshold_uncertainty_score":0.009572446,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03324961931771582,"score_gpt":0.2346917349939367,"score_spread":0.2014421156762208,"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."}}