{"id":"W2945069928","doi":"10.1190/geo2019-0122.1","title":"Efficient wavefield reconstruction at half the Nyquist rate","year":2019,"lang":"en","type":"article","venue":"Geophysics","topic":"Seismic Imaging and Inversion Techniques","field":"Earth and Planetary Sciences","cited_by":11,"is_retracted":false,"has_abstract":true,"ca_institutions":"St. John’s Health Sciences Centre; Memorial University of Newfoundland","funders":"","keywords":"Nyquist rate; Nyquist–Shannon sampling theorem; Inversion (geology); Seismic migration; Waveform; Computer science; Algorithm; Nyquist frequency; Derivative (finance); Telecommunications; Sampling (signal processing); Geology; Bandwidth (computing); Computer vision; 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":"codex-gemma-dda1882f352a","candidate_categories":["insufficient_payload"],"consensus_categories":["insufficient_payload"],"category_scores_codex":[0.0001617785,0.00007233731,0.00007283146,0.00001825934,0.0001665294,0.00003097522,0.0001296515,0.00002993001,0.001309222],"category_scores_gemma":[0.000008254224,0.00004666604,0.00004759556,0.0001013484,0.00006605632,0.00003870228,0.00001424184,0.0001027228,0.002888781],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.000005088322,"about_ca_system_score_gemma":0.0000144912,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001887813,"about_ca_topic_score_gemma":0.00001709147,"domain_scores_codex":[0.9994603,0.00004001161,0.00008501017,0.0001478383,0.0001089801,0.0001578619],"domain_scores_gemma":[0.9996026,0.00008084033,0.00004833534,0.0002167382,0.00002242022,0.00002913082],"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":[0.00008271317,0.00002562108,0.08527658,0.0000373618,0.00003295147,0.00000566697,0.0007492275,0.005919727,0.001347724,0.0011537,0.04171513,0.8636536],"study_design_scores_gemma":[0.0005574024,0.0002603286,0.1137503,0.00007059614,0.00003658022,0.00008059865,0.0007837499,0.6354109,0.01902422,0.009978668,0.2194325,0.00061413],"study_design_candidate":"design_other","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9610116,0.00005425244,0.00007743199,0.000925003,0.0009341805,0.0001085375,0.000008549378,0.00007901464,0.03680144],"genre_scores_gemma":[0.9944749,0.00001357442,0.0001624087,0.001811441,0.0001022922,4.691218e-7,0.0000194012,0.000002045778,0.003413415],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.8630395,"threshold_uncertainty_score":0.9996037,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006895204033485113,"score_gpt":0.1769145222453772,"score_spread":0.1700193182118921,"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."}}