{"id":"W4407712952","doi":"10.2196/67755","title":"Impact of a Virtual Reality Video (\"A Walk-Through Dementia\") on YouTube Users: Topic Modeling Analysis","year":2025,"lang":"en","type":"article","venue":"JMIR Formative Research","topic":"Virtual Reality Applications and Impacts","field":"Computer Science","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Preprint; Dementia; Virtual reality; Computer science; World Wide Web; Human–computer interaction; Medicine","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":[0.002295496,0.0005885212,0.000384685,0.002160884,0.0004861646,0.001122457,0.0003062118,0.0004476281,0.0009639973],"category_scores_gemma":[0.01129419,0.0001111936,0.0006843266,0.001656688,0.0003508454,0.001095649,0.0006918909,0.0005452003,0.0004060765],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007079475,"about_ca_system_score_gemma":0.00033941,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.01106772,"about_ca_topic_score_gemma":0.01635058,"domain_scores_codex":[0.9984263,0.0008096392,0.0001067775,0.0002579358,0.0002703598,0.0001289113],"domain_scores_gemma":[0.9886248,0.009093404,0.0008834511,0.0002556822,0.0009159424,0.0002266918],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.002401324,0.0006566279,0.7450451,0.002870738,0.00046909,0.001502656,0.03575565,0.01086652,0.01822499,0.001116677,0.01927524,0.1618154],"study_design_scores_gemma":[0.00005283373,0.001216201,0.80093,0.0004277388,0.0003001221,0.0007730851,0.04022686,0.1379882,0.006239918,0.000738886,0.01096131,0.0001448728],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9911378,0.0003902274,0.002589416,0.0002480822,0.00004268301,0.0001780517,0.003993144,0.0001122171,0.001308471],"genre_scores_gemma":[0.985613,0.0003706891,0.004848272,0.00008155113,0.00005879484,0.0003521323,0.007616941,0.00004965851,0.001008952],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01106772,"threshold_uncertainty_score":0.02200657,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1159463284439881,"score_gpt":0.4679634247874391,"score_spread":0.352017096343451,"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."}}