{"id":"W3024413261","doi":"10.1088/1361-6382/ab939b","title":"Numerical solutions to Einstein’s equations in a shearing-dust universe: a code comparison","year":2020,"lang":"en","type":"article","venue":"Classical and Quantum Gravity","topic":"Cosmology and Gravitation Theories","field":"Physics and Astronomy","cited_by":18,"is_retracted":false,"has_abstract":true,"ca_institutions":"York University; Perimeter Institute","funders":"H2020 European Research Council; Comisión Nacional de Investigación Científica y Tecnológica; Science and Technology Facilities Council","keywords":"Geodesic; Observable; Gravitation; Null (SQL); Gravitational field; Field equation; Code (set theory); Newtonian fluid; Tracing","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":[0.001899575,0.0005990281,0.000652296,0.0009366785,0.0005044263,0.0008934912,0.001751033,0.0009994359,0.001676016],"category_scores_gemma":[0.006535388,0.0002927891,0.0004909917,0.001341686,0.0007141635,0.0006542002,0.0008358163,0.0008758937,0.0002377445],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001407006,"about_ca_system_score_gemma":0.001063674,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01661565,"about_ca_topic_score_gemma":0.01224768,"domain_scores_codex":[0.9994022,0.0001896496,0.00005405641,0.00007075974,0.0002132452,0.00007005908],"domain_scores_gemma":[0.9925008,0.004291929,0.0003010014,0.001099639,0.001491711,0.0003148811],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0008397693,0.0008773982,0.02313241,0.0001765591,0.0001936855,0.0001452762,0.0004948132,0.9203479,0.005235973,0.01190434,0.00211664,0.03453529],"study_design_scores_gemma":[0.0001177479,0.00009674746,0.001799275,0.000008498586,0.00001488973,0.00001148403,0.00004924915,0.9933966,0.002877132,0.0008972142,0.0007177241,0.00001342008],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9777634,0.0001868408,0.01133657,0.0002174511,0.00005828177,0.0001058444,0.000488039,0.00147082,0.008372753],"genre_scores_gemma":[0.9612724,0.0001338158,0.03602836,0.00007668375,0.00002084316,0.0001137007,0.0007271421,0.0003539697,0.001273136],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01661565,"threshold_uncertainty_score":0.0330379,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.04500342096887022,"score_gpt":0.2915790377922891,"score_spread":0.2465756168234189,"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."}}