{"id":"W2761035310","doi":"10.2196/mhealth.5090","title":"Mobile Phone-Based Measures of Activity, Step Count, and Gait Speed: Results From a Study of Older Ambulatory Adults in a Naturalistic Setting","year":2017,"lang":"en","type":"article","venue":"JMIR mhealth and uhealth","topic":"Mobile Health and mHealth Applications","field":"Health Professions","cited_by":24,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Institute of Mental Health; National Institute on Aging","keywords":"Ambulatory; Medicine; Psychological intervention; Physical medicine and rehabilitation; Gait; Physical therapy; Mobile phone; Naturalistic observation; Geriatrics; Gerontology; Psychology; Computer science; Nursing; 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":[0.001323362,0.000341854,0.0003068858,0.0004338347,0.000496153,0.0003802171,0.0002690343,0.0004141601,0.0006144304],"category_scores_gemma":[0.00291468,0.0002259175,0.0003334819,0.0003663312,0.0003846544,0.0003379127,0.0004490219,0.0003669857,0.0002336243],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0001923489,"about_ca_system_score_gemma":0.0002973818,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.005891839,"about_ca_topic_score_gemma":0.01231688,"domain_scores_codex":[0.9992751,0.0003493938,0.00007495009,0.0001106816,0.0001327587,0.00005718315],"domain_scores_gemma":[0.9986004,0.0003415727,0.0003245799,0.0001228238,0.0002931485,0.0003173185],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0008591738,0.001204393,0.9882743,0.00005578102,0.0001286714,0.0001916645,0.002055614,0.00004691498,0.002557334,0.00001566871,0.0001977646,0.004412697],"study_design_scores_gemma":[0.00005045596,0.001437573,0.9972255,0.000005205426,0.00002841417,0.0002248238,0.0006310997,0.00009809496,0.0001241884,0.00001014004,0.0001598629,0.000004628045],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9996725,0.0000282239,0.00008258855,0.000007231223,0.00000152257,0.00003028624,0.0000709517,0.000001363613,0.0001053219],"genre_scores_gemma":[0.9990631,0.00005308605,0.0003690131,0.00005611166,0.000007558383,0.00008136294,0.0002494785,0.000001624978,0.0001187906],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.005891839,"threshold_uncertainty_score":0.01171505,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.08902883371848085,"score_gpt":0.4460415737739734,"score_spread":0.3570127400554925,"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."}}