{"id":"W3112862621","doi":"10.2196/24859","title":"Electronic Cigarette Users' Perspective on the COVID-19 Pandemic: Observational Study Using Twitter Data","year":2020,"lang":"en","type":"article","venue":"JMIR Public Health and Surveillance","topic":"Smoking Behavior and Cessation","field":"Medicine","cited_by":29,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Cancer Institute; Center for Tobacco Products; National Institutes of Health","keywords":"Pandemic; Observational study; Coronavirus disease 2019 (COVID-19); Electronic cigarette; Perspective (graphical); 2019-20 coronavirus outbreak; Internet privacy; Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2); Environmental health; Computer science; Medicine; Virology; Outbreak; Infectious disease (medical specialty); Disease; Artificial intelligence","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":true,"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":[0.0006878134,0.0002212433,0.0003251474,0.0009119718,0.0005715099,0.0008645469,0.0002848871,0.0005367904,0.003109636],"category_scores_gemma":[0.005153161,0.0002047916,0.0004142093,0.001544193,0.0002358662,0.001411384,0.001074767,0.0007189205,0.001326254],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003446425,"about_ca_system_score_gemma":0.0003724457,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.007277369,"about_ca_topic_score_gemma":0.009065976,"domain_scores_codex":[0.9993734,0.0001775945,0.00009950555,0.0001200614,0.0001253282,0.0001041648],"domain_scores_gemma":[0.9976698,0.0006560503,0.0008921283,0.0001533517,0.0003577091,0.0002709367],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0001493884,0.0001280954,0.9897125,0.0001109295,0.0000472434,0.0001714987,0.001758198,0.00007874692,0.0003144879,0.0001025947,0.002993293,0.004433086],"study_design_scores_gemma":[0.0000130144,0.0001225805,0.9871477,0.00008080186,0.00004847623,0.0002956898,0.00650427,0.001126487,0.0002340141,0.00007689826,0.004324689,0.00002541891],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.988185,0.0001347378,0.0001642959,0.0002498657,0.00002144552,0.00008545766,0.009558872,0.000009406705,0.001590871],"genre_scores_gemma":[0.9890556,0.0002748747,0.0003456369,0.0002103554,0.00004982469,0.0001844244,0.009094725,0.00001282121,0.0007716907],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.007277369,"threshold_uncertainty_score":0.01447004,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.4327259019353158,"score_gpt":0.4533950632287549,"score_spread":0.0206691612934391,"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."}}