{"id":"W4291493428","doi":"10.1007/s11071-022-07766-z","title":"The fractional-order discrete COVID-19 pandemic model: stability and chaos","year":2022,"lang":"en","type":"article","venue":"Nonlinear Dynamics","topic":"COVID-19 epidemiological studies","field":"Mathematics","cited_by":70,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of Manitoba","funders":"","keywords":"Lyapunov exponent; Mathematics; Approximate entropy; Chaotic; Attractor; Bifurcation; Applied mathematics; Stability (learning theory); Coronavirus disease 2019 (COVID-19); Fractional calculus; Pandemic; Bifurcation diagram; Statistical physics; Mathematical analysis; Computer science; Statistics; Nonlinear system; Time series; Physics; Medicine; Artificial intelligence","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0006312696,0.0005036108,0.0009523936,0.0008164393,0.0009346669,0.001675821,0.001158618,0.00143047,0.001977506],"category_scores_gemma":[0.002706655,0.0002201128,0.0007718219,0.0005025147,0.001630485,0.001463516,0.001250209,0.001140479,0.0001202018],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001300426,"about_ca_system_score_gemma":0.001082385,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.008326182,"about_ca_topic_score_gemma":0.003146371,"domain_scores_codex":[0.9997997,0.00006346191,0.000007532843,0.00003896594,0.00003157108,0.00005880377],"domain_scores_gemma":[0.9990144,0.0004159541,0.0002293642,0.00006727281,0.000134052,0.0001388579],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"simulation_or_modeling","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0001698117,0.0001054697,0.003547076,0.0001222989,0.00009643707,0.0005271413,0.0003165345,0.5056179,0.003913492,0.4786163,0.002224789,0.00474277],"study_design_scores_gemma":[0.00001488689,0.0000181929,0.0003829558,0.000006441965,0.00001285615,0.00004718549,0.00004893753,0.9643475,0.0001117372,0.03464177,0.0003560794,0.00001153367],"study_design_candidate":"simulation_or_modeling","study_design_consensus":"simulation_or_modeling","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7706159,0.001310842,0.1928564,0.003780011,0.0003274138,0.00006024315,0.0004349001,0.0001168897,0.03049749],"genre_scores_gemma":[0.9941385,0.0002159,0.001652268,0.00006019825,0.00004757226,0.00001532559,0.00004944883,0.000007577072,0.003813332],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.008326182,"threshold_uncertainty_score":0.01655543,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.2118230566409254,"score_gpt":0.4300054406917751,"score_spread":0.2181823840508497,"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."}}