{"id":"W4251053124","doi":"10.4135/9781473947955","title":"Testing for Heteroscedasticity and the Canadian Fuel Consumption Report (2015): Highway Fuel Consumption and Engine Size in Canada","year":2015,"lang":"en","type":"book","venue":"","topic":"Vehicle emissions and performance","field":"Engineering","cited_by":0,"is_retracted":false,"has_abstract":false,"ca_institutions":"","funders":"","keywords":"Fuel efficiency; Heteroscedasticity; Consumption (sociology); Automotive engineering; Environmental science; Agricultural economics; Economics; Engineering; Econometrics; Sociology","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"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":[0.01298703,0.001254661,0.001423485,0.001525928,0.003196057,0.002461506,0.002948696,0.001054854,0.006284337],"category_scores_gemma":[0.0441517,0.0008404219,0.003262059,0.005969017,0.001994806,0.001735389,0.001174613,0.002969818,0.000817586],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.01854276,"about_ca_system_score_gemma":0.07506489,"about_ca_topic_candidate":true,"about_ca_topic_consensus":true,"about_ca_topic_score_codex":0.9879269,"about_ca_topic_score_gemma":0.9880531,"domain_scores_codex":[0.9881599,0.002923712,0.0006618591,0.001576046,0.005418222,0.001260217],"domain_scores_gemma":[0.9576368,0.02134121,0.002110109,0.002593545,0.01531391,0.00100443],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0002631884,0.0001645799,0.6342103,0.0004048197,0.002364881,0.0004587238,0.002466288,0.01962634,0.0005233178,0.03413481,0.1763029,0.1290798],"study_design_scores_gemma":[0.0000941914,0.0001885872,0.8680249,0.0004405289,0.001380206,0.0001658688,0.005914548,0.04674246,0.001670807,0.01356252,0.06155391,0.0002614981],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.6395524,0.02683154,0.1352389,0.02222222,0.00353457,0.0008048284,0.09351981,0.002181361,0.07611431],"genre_scores_gemma":[0.8984539,0.004881274,0.02223285,0.001129321,0.0004290857,0.0002831288,0.02847005,0.0004835504,0.04363697],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.01854276,"threshold_uncertainty_score":0.1345378,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02595587628084577,"score_gpt":0.2260740390606576,"score_spread":0.2001181627798118,"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."}}