{"id":"W3003148639","doi":"10.1155/2020/7454307","title":"The Impact of Purchase Restriction Policy on Car Ownership in China’s Four Major Cities","year":2020,"lang":"en","type":"article","venue":"Journal of Advanced Transportation","topic":"Vehicle emissions and performance","field":"Engineering","cited_by":32,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Natural Science Foundation of China","keywords":"Beijing; China; Car ownership; Business; Stock (firearms); Possession (linguistics); Traffic congestion; Public transport; Transport engineering; Geography; Engineering","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":[0.00008851482,0.00007631399,0.0001239995,0.0001085064,0.00003325371,0.000006859192,0.00007092144,0.00003251387,0.00000502558],"category_scores_gemma":[0.00002961089,0.00004914768,0.0000900912,0.0002818437,0.00001246208,0.0002160286,4.70843e-7,0.0002153188,4.898994e-7],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00006879798,"about_ca_system_score_gemma":0.00006130994,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00004213824,"about_ca_topic_score_gemma":0.00001819075,"domain_scores_codex":[0.999365,0.00001164072,0.0003391511,0.00004061557,0.0001390068,0.0001045868],"domain_scores_gemma":[0.9996816,0.00002918621,0.0001302732,0.0000514554,0.00004211115,0.00006540604],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"observational","study_design_scores_codex":[0.0003135497,0.00001081119,0.004680039,0.00003468544,0.00001933867,0.00001042199,0.001843422,0.9662973,0.01767135,0.0001286094,0.00003940103,0.008951025],"study_design_scores_gemma":[0.0009638909,0.0005283335,0.9871181,0.0001117842,0.00000885377,0.000004052883,0.0004916787,0.005548589,0.004510466,0.0003573899,0.0002774194,0.00007942799],"study_design_candidate":"observational","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9985787,0.0001803218,0.000479544,0.0004849852,0.00008217133,0.00005710053,0.00001238051,0.00001111526,0.000113674],"genre_scores_gemma":[0.9987031,0.0009316286,0.0001919809,0.000009517347,0.0001419304,0.00000144085,0.000003712638,0.00001090671,0.000005761285],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.9824381,"threshold_uncertainty_score":0.2004184,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01528628433955984,"score_gpt":0.2636240763843714,"score_spread":0.2483377920448116,"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."}}