{"id":"W4214543301","doi":"10.2196/33635","title":"Heart Rate Measurement Accuracy of Fitbit Charge 4 and Samsung Galaxy Watch Active2: Device Evaluation Study","year":2022,"lang":"en","type":"article","venue":"JMIR Formative Research","topic":"Non-Invasive Vital Sign Monitoring","field":"Engineering","cited_by":63,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"Bundesministerium für Gesundheit; Deutsche Forschungsgemeinschaft","keywords":"Heart rate; Medicine; Activity tracker; Heart rate monitor; Physical therapy; Physical activity; Statistics; Mathematics; Blood pressure; Internal 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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.007267661,0.0001676206,0.0002469884,0.0002811437,0.0004138762,0.0000588473,0.0002449247,0.00003258187,0.0002414728],"category_scores_gemma":[0.000335958,0.0001677429,0.00004493538,0.0007890919,0.00005273626,0.0006437923,0.0003904786,0.0006799233,0.00003753867],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009993305,"about_ca_system_score_gemma":0.0001115215,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00008316997,"about_ca_topic_score_gemma":0.00001659162,"domain_scores_codex":[0.9955044,0.001046754,0.0003468303,0.0002318801,0.002385943,0.0004841889],"domain_scores_gemma":[0.9983168,0.0004615494,0.00006276507,0.0002829295,0.0007684694,0.0001075429],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.0002481929,0.0007397925,0.03288608,0.0007480694,0.0004124031,0.00000918866,0.0609773,0.002606515,0.8812736,0.00006900428,0.004475089,0.01555472],"study_design_scores_gemma":[0.004630011,0.002740937,0.4492311,0.0002610986,0.000054666,0.00001400265,0.04408257,0.01579599,0.4785601,0.0006351079,0.00320555,0.0007888137],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9960907,0.0003312336,0.00007339758,0.0001025282,0.0002100517,0.002095195,0.00002186449,0.00005887514,0.001016186],"genre_scores_gemma":[0.998363,0.0000212637,0.0000377126,0.000004398591,0.00006207044,0.001450842,0.000007447054,0.0000332474,0.00001999854],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.416345,"threshold_uncertainty_score":0.6840356,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.1385895742659559,"score_gpt":0.4045060877409611,"score_spread":0.2659165134750051,"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."}}