{"id":"W2968910514","doi":"10.1190/segam2019-3214974.1","title":"Reflection angle- and azimuth-dependent least-squares reverse-time migration","year":2019,"lang":"en","type":"article","venue":"","topic":"Seismic Imaging and Inversion Techniques","field":"Earth and Planetary Sciences","cited_by":8,"is_retracted":false,"has_abstract":true,"ca_institutions":"Shell (Canada)","funders":"","keywords":"Azimuth; Seismic migration; Reflection (computer programming); Inversion (geology); Least-squares function approximation; Computer science; Conjugate gradient method; Total internal reflection; Convergence (economics); Algorithm; Geology; Mathematics; Optics; Geometry; Physics; Geophysics; Seismology; Statistics","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":[0.0003128403,0.0008060264,0.0003657866,0.0003579954,0.0002263269,0.0006128618,0.0007834085,0.0006766017,0.003246877],"category_scores_gemma":[0.001179286,0.000337348,0.000471695,0.0004613063,0.0003529206,0.0006537402,0.0006356791,0.0007903817,0.00175039],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001713649,"about_ca_system_score_gemma":0.0007070848,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0007471311,"about_ca_topic_score_gemma":0.001750684,"domain_scores_codex":[0.9998394,0.00002849952,0.00000879099,0.00003368521,0.00007627536,0.00001328357],"domain_scores_gemma":[0.9997033,0.00005850133,0.00004268781,0.00007121902,0.0001094066,0.00001486428],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0002209544,0.0001313958,0.00255572,0.0003226874,0.00008659525,0.0002845836,0.000375841,0.246546,0.2980499,0.01880294,0.007422902,0.4252006],"study_design_scores_gemma":[0.00002851576,0.00009724904,0.0009011457,0.00001452653,0.0000203234,0.0002839688,0.00007002515,0.9067981,0.07607252,0.003689556,0.01196981,0.00005417052],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"methods","genre_scores_codex":[0.01060989,0.00004771493,0.9871445,0.00009255992,0.00005043687,0.00002805326,0.00009237297,0.0007337335,0.001200632],"genre_scores_gemma":[0.06952675,0.0001112837,0.9254139,0.00004855639,0.00002668009,0.00006723519,0.0003653152,0.0003028966,0.004137379],"genre_candidate":"methods","genre_consensus":"methods","teacher_disagreement_score":0.003246877,"threshold_uncertainty_score":0.01086187,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.00963508190166746,"score_gpt":0.2062917857339054,"score_spread":0.196656703832238,"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."}}