{"id":"W1987658119","doi":"10.1016/s0267-7261(02)00208-7","title":"Dynamic characteristics of a base isolated building from ambient vibration measurements and low level earthquake shaking","year":2003,"lang":"en","type":"article","venue":"Soil Dynamics and Earthquake Engineering","topic":"Structural Health Monitoring Techniques","field":"Engineering","cited_by":54,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of British Columbia","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"Structural engineering; Vibration; Finite element method; Modal; Ambient vibration; Damping ratio; Modal analysis; Natural frequency; Engineering; Normal mode; Seismic noise; Acoustics; Materials science; Physics; Civil engineering","routes":{"ca_aff":true,"ca_fund":true,"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":[0.00008547967,0.0001900098,0.0003086113,0.0005041016,0.0002045713,0.000211766,0.0002781036,0.0003909105,0.001196327],"category_scores_gemma":[0.0004621075,0.0001652926,0.0001483115,0.0003119795,0.0002081971,0.0001858527,0.0002415956,0.0002740016,0.0002436736],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001057631,"about_ca_system_score_gemma":0.0001122336,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001879221,"about_ca_topic_score_gemma":0.002483413,"domain_scores_codex":[0.9999104,0.000007946668,0.000003516747,0.00001912875,0.0000393325,0.00001966534],"domain_scores_gemma":[0.9997603,0.00009791587,0.00002628914,0.00001291537,0.00004628268,0.00005626623],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"observational","study_design_scores_codex":[0.002467992,0.0003942115,0.1102081,0.0001909874,0.0001169447,0.002099931,0.0007988623,0.03032939,0.7973349,0.0002494619,0.0007481475,0.05506113],"study_design_scores_gemma":[0.00004868539,0.0009679002,0.8623454,0.00001708734,0.0001299407,0.001432513,0.0005246907,0.09340411,0.04043021,0.000156586,0.0004908261,0.00005203874],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9970647,0.0000168465,0.002147364,0.00001036508,0.000004015576,0.000003916238,0.0001376618,0.00005287497,0.0005622245],"genre_scores_gemma":[0.9995505,0.000008629519,0.0002256848,0.000003127772,0.00000236062,0.000001929486,0.00009248791,0.00000509031,0.0001101251],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001879221,"threshold_uncertainty_score":0.004002094,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01525106817278487,"score_gpt":0.2240652659482434,"score_spread":0.2088141977754585,"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."}}