{"id":"W6959454496","doi":"10.1051/0004-6361/202450214/pdf","title":"Supervised star, galaxy, and QSO classification with sharpened dimensionality reduction","year":2024,"lang":"en","type":"article","venue":"Springer Link (Chiba Institute of Technology)","topic":"Dust and Plasma Wave Phenomena","field":"Physics and Astronomy","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Lawrence Berkeley National Laboratory; Brookhaven National Laboratory; INAF-Osservatorio Astronomico di Padova; Jet Propulsion Laboratory; Office of Science; Max-Planck-Institut für Astronomie; Centre National de la Recherche Scientifique; European Southern Observatory; Max-Planck-Gesellschaft; Harvard University; Nederlandse Organisatie voor Wetenschappelijk Onderzoek; Chinese Academy of Sciences; York University; Science and Technology Facilities Council; Universität Basel; Fermilab; National Science Foundation; Case Western Reserve University; Carnegie Mellon University; University of Pittsburgh; Los Alamos National Laboratory; College of Engineering, Michigan State University; Università degli Studi di Padova; Princeton University; Alfred P. Sloan Foundation; University of Washington; European Space Agency; Johns Hopkins University; Ohio State University; New Mexico State University; University of California, Los Angeles; University of Portsmouth; Yale University; Vanderbilt University; Drexel University; U.S. Naval Observatory; U.S. Department of Energy; California Institute of Technology; National Aeronautics and Space Administration","keywords":"Dimensionality reduction; Cluster analysis; Classifier (UML); Pattern recognition (psychology); Artificial neural network; Curse of dimensionality; Multidimensional data; Projection pursuit; Projection (relational algebra)","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"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":[0.00219645,0.001149881,0.0009100184,0.001601101,0.0005962967,0.001187247,0.001124929,0.0009715484,0.0007786883],"category_scores_gemma":[0.0053078,0.0003015815,0.001326544,0.0010504,0.0007720768,0.001228029,0.001954895,0.001302134,0.0007255019],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007724473,"about_ca_system_score_gemma":0.001087137,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00351271,"about_ca_topic_score_gemma":0.004598301,"domain_scores_codex":[0.9983419,0.0004444623,0.0001126832,0.0005182147,0.00043486,0.0001477966],"domain_scores_gemma":[0.9975674,0.0005855853,0.0003508297,0.000715483,0.0006603271,0.0001203508],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0005661718,0.0007188161,0.04508819,0.0002646425,0.0004973423,0.0002398851,0.0006399053,0.2596346,0.02938237,0.006958116,0.007891079,0.648119],"study_design_scores_gemma":[0.00003214968,0.0001177406,0.01005022,0.00001626533,0.00002931825,0.00008444078,0.0001161473,0.9716518,0.01062056,0.005820916,0.001426705,0.00003380075],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.4971789,0.0005507104,0.4938137,0.0005195035,0.00009943951,0.0002331461,0.001472682,0.003491002,0.002640919],"genre_scores_gemma":[0.6658035,0.00009348303,0.3285251,0.0001441333,0.00006819727,0.0001487917,0.003479272,0.0001086343,0.001628966],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00351271,"threshold_uncertainty_score":0.01161605,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01675915747866437,"score_gpt":0.2345769457308194,"score_spread":0.2178177882521551,"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."}}