{"id":"W4411240032","doi":"10.2196/66403","title":"Natural Language Processing Chatbot–Based Interventions for Improvement of Diet, Physical Activity, and Tobacco Smoking Behaviors: Systematic Review","year":2025,"lang":"en","type":"review","venue":"JMIR mhealth and uhealth","topic":"Digital Mental Health Interventions","field":"Psychology","cited_by":5,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Chatbot; Psychological intervention; Physical activity; Psychology; Medicine; Computer science; Environmental health; Natural language processing; Physical therapy; Psychiatry","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":[0.01017748,0.00150903,0.009192768,0.006524258,0.0006744665,0.001811772,0.002177221,0.001764317,0.005464935],"category_scores_gemma":[0.04394435,0.0009152671,0.01007756,0.006919509,0.0008375436,0.001962573,0.001322438,0.001177352,0.0003529132],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.003355985,"about_ca_system_score_gemma":0.01115341,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00778307,"about_ca_topic_score_gemma":0.01945042,"domain_scores_codex":[0.9933493,0.002664823,0.002269169,0.0004702635,0.001053061,0.000193348],"domain_scores_gemma":[0.9661666,0.02569298,0.004687576,0.0005193052,0.002624363,0.0003091697],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"systematic_review","study_design_gemma":"systematic_review","study_design_scores_codex":[0.0005915465,0.00004610392,0.0005399809,0.9443364,0.01262309,0.00005313913,0.0001306418,0.0001000491,0.0001287267,0.0000955147,0.0009419576,0.0404128],"study_design_scores_gemma":[0.00162524,0.0008586463,0.005543422,0.7926174,0.1862111,0.0002317122,0.0002767568,0.0002466229,0.0004449516,0.0003320005,0.01155784,0.00005444592],"study_design_candidate":"systematic_review","study_design_consensus":"systematic_review","genre_codex":"review","genre_gemma":"review","genre_scores_codex":[0.002307062,0.9954056,0.0003480564,0.0002144784,0.0001270501,0.0009371787,0.0003585476,0.00002398538,0.0002780343],"genre_scores_gemma":[0.03082652,0.9638576,0.001700443,0.0006058972,0.0001048962,0.002383181,0.0003453744,0.00001076594,0.0001652819],"genre_candidate":"review","genre_consensus":"review","teacher_disagreement_score":0.01017748,"threshold_uncertainty_score":0.05382431,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1079423745308869,"score_gpt":0.5332283555847087,"score_spread":0.4252859810538218,"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."}}