{"id":"W2188032837","doi":"","title":"Feasibility of Using Multigrid Methods for Solving Least- Squares Prestack Kirchhoff Migration Equation","year":2010,"lang":"en","type":"article","venue":"","topic":"Seismic Imaging and Inversion Techniques","field":"Earth and Planetary Sciences","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Calgary","funders":"","keywords":"Prestack; Least-squares function approximation; Multigrid method; Applied mathematics; Computer science; Mathematics; Mathematical optimization; Algorithm; Mathematical analysis; Geology; Statistics; Partial differential equation; Estimator; Seismology","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":[0.000787191,0.000535127,0.0005265737,0.0003379079,0.00055253,0.0007455447,0.0007313368,0.0009965883,0.002957627],"category_scores_gemma":[0.005588301,0.0003985691,0.0003758699,0.0002998979,0.0004951119,0.001203748,0.0007339848,0.0008428656,0.0006341427],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002640507,"about_ca_system_score_gemma":0.001456009,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0150701,"about_ca_topic_score_gemma":0.01356655,"domain_scores_codex":[0.999786,0.00009585794,0.00001068358,0.00003094006,0.00006036773,0.00001613885],"domain_scores_gemma":[0.9982519,0.001219863,0.00005975273,0.0001426845,0.0002792802,0.00004654141],"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":[0.0004511174,0.0002035272,0.003415675,0.0001913021,0.00007300635,0.0001088985,0.0002818497,0.7837401,0.02134713,0.02677809,0.002878353,0.1605309],"study_design_scores_gemma":[0.00001059352,0.00001092513,0.0001293133,0.000002668399,0.000002404494,0.000005598955,0.00001248289,0.9972196,0.0008442014,0.001434023,0.000324282,0.000003996287],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.06301092,0.0001059369,0.9320131,0.0004063554,0.00005418113,0.00005882169,0.00009183162,0.0005554521,0.0037033],"genre_scores_gemma":[0.3570948,0.00008392522,0.640203,0.00007179868,0.00001975743,0.0001003604,0.0001684867,0.0001750003,0.002082844],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.0150701,"threshold_uncertainty_score":0.0299648,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.09738173025898172,"score_gpt":0.3664990345488466,"score_spread":0.2691173042898649,"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."}}