{"id":"W1601380179","doi":"10.1023/a:1015248903174","title":"Regularizing Time Transformations in Symplectic and Composite Integration","year":2002,"lang":"en","type":"article","venue":"Celestial Mechanics and Dynamical Astronomy","topic":"Stellar, planetary, and galactic studies","field":"Physics and Astronomy","cited_by":25,"is_retracted":false,"has_abstract":false,"ca_institutions":"York University","funders":"","keywords":"Integrable system; Symplectic geometry; Celestial mechanics; Hamiltonian system; Hamiltonian (control theory); Mathematics; Numerical integration; Variable (mathematics); n-body problem; Two-body problem; Three-body problem; Applied mathematics; Classical mechanics; Physics; Mathematical analysis; Mathematical optimization","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":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001108587,0.0004654801,0.0006213703,0.001204335,0.001036442,0.001764421,0.0008019766,0.0007311671,0.004874046],"category_scores_gemma":[0.003590493,0.0003623763,0.0006955276,0.0007940934,0.002992647,0.003553988,0.002416622,0.002073929,0.0004074088],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006990433,"about_ca_system_score_gemma":0.0004877372,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001166099,"about_ca_topic_score_gemma":0.001657388,"domain_scores_codex":[0.9995939,0.0001149892,0.00002344059,0.00008238493,0.0001221322,0.00006306337],"domain_scores_gemma":[0.9989717,0.0002988249,0.0001513282,0.0002037643,0.0001626078,0.000211785],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.00001855107,0.00001114925,0.00006862944,0.000007780581,0.000003354304,0.00002174635,0.0001258496,0.00228022,0.000343443,0.99304,0.0002946213,0.003784653],"study_design_scores_gemma":[0.000008778171,0.00001385636,0.00009386817,0.000003081928,0.000002137258,0.0000187303,0.00003349939,0.01714497,0.0001292239,0.9814662,0.001080933,0.000004838801],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.380833,0.0006293966,0.556503,0.001303074,0.0004464495,0.00006401914,0.0001637343,0.0003825064,0.05967496],"genre_scores_gemma":[0.9032995,0.0004074381,0.06804427,0.0002422491,0.0003936782,0.00005974932,0.0001404538,0.0003254921,0.02708719],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.004874046,"threshold_uncertainty_score":0.01630533,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007016096457078713,"score_gpt":0.1884038322778285,"score_spread":0.1813877358207498,"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."}}