{"id":"W2033233252","doi":"10.1190/1.2216190","title":"The virtual source method: Theory and case study","year":2006,"lang":"en","type":"article","venue":"Geophysics","topic":"Geophysical Methods and Applications","field":"Engineering","cited_by":443,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Shell Canada","keywords":"Geophone; Overburden; Geology; Borehole; Vertical seismic profile; Waveform; Energy (signal processing); Computer science; Seismology; Acoustics; Algorithm; Mining engineering; Geotechnical engineering","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001481896,0.0004888055,0.0004415752,0.001224605,0.0006907136,0.00195162,0.001585128,0.001727637,0.00420856],"category_scores_gemma":[0.004250171,0.0004040204,0.0005568155,0.001336624,0.002245018,0.001472711,0.002218119,0.000882944,0.0005346602],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006622769,"about_ca_system_score_gemma":0.0004995764,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002335609,"about_ca_topic_score_gemma":0.002180061,"domain_scores_codex":[0.9990538,0.000426603,0.0000342601,0.00008757822,0.0003425044,0.00005522283],"domain_scores_gemma":[0.9976863,0.001601325,0.0001221279,0.0002519561,0.0002637987,0.000074453],"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":[0.0001872655,0.0002121986,0.005288673,0.000313382,0.00006198497,0.003831524,0.001497117,0.2753884,0.01064172,0.4964898,0.005511628,0.2005763],"study_design_scores_gemma":[0.00002764304,0.0001025953,0.0005518121,0.00004896149,0.00001615504,0.00153149,0.0003215705,0.9083363,0.005257769,0.07100262,0.01275309,0.00005005422],"study_design_candidate":"simulation_or_modeling","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.02405758,0.0004625942,0.9604652,0.0004374853,0.00004150558,0.00006823843,0.00005812086,0.0002616967,0.01414752],"genre_scores_gemma":[0.4967385,0.0008426862,0.4917469,0.00008482689,0.00007360132,0.0001892963,0.0001078765,0.0001440937,0.01007219],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.00420856,"threshold_uncertainty_score":0.01407903,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006132670782393159,"score_gpt":0.2564179194465931,"score_spread":0.2502852486642,"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."}}