{"id":"W3087925674","doi":"10.2196/20465","title":"Sleep Tracking of a Commercially Available Smart Ring and Smartwatch Against Medical-Grade Actigraphy in Everyday Settings: Instrument Validation Study","year":2020,"lang":"en","type":"article","venue":"JMIR mhealth and uhealth","topic":"Sleep and related disorders","field":"Psychology","cited_by":166,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Actigraphy; Sleep (system call); Wearable computer; Sleep onset; Smartwatch; Medicine; Computer science; Psychology; Physical therapy; Insomnia; Embedded system; 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":[0.00407801,0.0006782858,0.0004456891,0.0007242181,0.0004268397,0.0004825649,0.0005568248,0.0005311344,0.001112361],"category_scores_gemma":[0.005176055,0.000248846,0.0008094003,0.0004285443,0.0005818307,0.000342407,0.0006764615,0.0002488453,0.0005049192],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002723623,"about_ca_system_score_gemma":0.0005185459,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001207014,"about_ca_topic_score_gemma":0.00232144,"domain_scores_codex":[0.9978326,0.0009028116,0.0002627823,0.0004319073,0.0004711467,0.00009880223],"domain_scores_gemma":[0.996431,0.001097505,0.0006313012,0.000452778,0.001177896,0.0002094516],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0045644,0.007139057,0.7864702,0.00105522,0.0009662024,0.0002987073,0.004459963,0.00167874,0.06236608,0.0003945038,0.001338617,0.1292683],"study_design_scores_gemma":[0.0004383538,0.02280517,0.9561312,0.0001366223,0.0005054485,0.0007940355,0.001407174,0.004453263,0.009958093,0.0001025611,0.003217252,0.0000508135],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9899454,0.0001195642,0.007294151,0.00002543537,0.00002563295,0.001297371,0.000372453,0.0000569121,0.0008630997],"genre_scores_gemma":[0.9721574,0.0001718418,0.02282737,0.0001381714,0.00003131505,0.002732322,0.0009047327,0.00002525888,0.001011648],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00407801,"threshold_uncertainty_score":0.02156687,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.05820452392273213,"score_gpt":0.3563067935959621,"score_spread":0.2981022696732299,"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."}}