{"id":"W4281568245","doi":"10.2196/38283","title":"Assessing the Initial Validity of the PortionSize App to Estimate Dietary Intake Among Adults: Pilot and Feasibility App Validation Study","year":2022,"lang":"en","type":"article","venue":"JMIR Formative Research","topic":"Nutritional Studies and Diet","field":"Medicine","cited_by":9,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Institute of Diabetes and Digestive and Kidney Diseases; National Institute of General Medical Sciences; Louisiana Clinical and Translational Science Center","keywords":"Meal; Food intake; Medicine; Serving size; Food group; Animal science; Portion size; Food frequency questionnaire; Energy expenditure; Added sugar; Sugar; Total energy; Food science; Mathematics; Environmental health; Obesity; Chemistry; Psychology; Internal medicine; Biology","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":[0.03539809,0.0009943206,0.0006621738,0.0005978494,0.0009351657,0.001451695,0.001054109,0.001126354,0.001680219],"category_scores_gemma":[0.06610698,0.0007496414,0.001224874,0.0002715838,0.001168646,0.001640692,0.001675264,0.001340885,0.0009823734],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0008261978,"about_ca_system_score_gemma":0.002011766,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002413466,"about_ca_topic_score_gemma":0.004038108,"domain_scores_codex":[0.9853261,0.007931936,0.001250777,0.001385116,0.003412054,0.0006939198],"domain_scores_gemma":[0.9553245,0.02579548,0.002428069,0.002932718,0.01246258,0.001056579],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.02735709,0.05053272,0.706429,0.001411168,0.001075665,0.0005548688,0.03131711,0.00201725,0.01700728,0.000823079,0.006459586,0.1550152],"study_design_scores_gemma":[0.005203285,0.141555,0.7893708,0.0007339392,0.001157139,0.001266234,0.008986565,0.01673625,0.01763824,0.000685768,0.01645088,0.0002158848],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9851597,0.00007914522,0.00454609,0.000117346,0.0000538823,0.007809257,0.0002499155,0.000075233,0.001909498],"genre_scores_gemma":[0.9594464,0.0001893548,0.02448151,0.0005411003,0.0000572462,0.01291443,0.0006330383,0.00006011176,0.001676775],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03539809,"threshold_uncertainty_score":0.1872053,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2369843376513855,"score_gpt":0.5058234886268613,"score_spread":0.2688391509754758,"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."}}