{"id":"W1984186082","doi":"10.1088/0264-9381/25/24/245010","title":"Path integral representation of spin foam models of 4D gravity","year":2008,"lang":"en","type":"article","venue":"Classical and Quantum Gravity","topic":"Noncommutative and Quantum Gravity Theories","field":"Physics and Astronomy","cited_by":71,"is_retracted":false,"has_abstract":true,"ca_institutions":"Perimeter Institute","funders":"","keywords":"Spin foam; Path integral formulation; Immirzi parameter; Representation (politics); Spin (aerodynamics); Path (computing); Boundary (topology); Group field theory","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002026301,0.0002161639,0.0005913059,0.00006965103,0.0002043281,0.00001432455,0.0001645905,0.0000710595,0.00003333364],"category_scores_gemma":[0.00002732365,0.0001757066,0.0002293689,0.000266998,0.001188152,0.0002414574,0.0001191565,0.0002673393,0.00000280791],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001055282,"about_ca_system_score_gemma":0.00007255719,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0008358094,"about_ca_topic_score_gemma":0.0000116384,"domain_scores_codex":[0.9985357,0.000192097,0.0004710236,0.000305918,0.0002489667,0.0002462973],"domain_scores_gemma":[0.9989048,0.0002145436,0.0002764168,0.0003096384,0.0001640014,0.0001306176],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.0002014129,0.0005128369,0.07172012,0.00005380044,0.00006265466,0.000003748623,0.0009973628,0.00001270713,0.004653251,0.9168605,0.0002180371,0.004703633],"study_design_scores_gemma":[0.0008232244,0.000422633,0.03834267,0.00006486855,0.00005491417,0.000004635439,0.0008912929,0.006331413,0.02432715,0.9283478,0.0001363673,0.0002530258],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.971633,0.0000783008,0.02655994,0.0001382543,0.00009424552,0.0001578555,0.0001674458,0.00001816232,0.001152791],"genre_scores_gemma":[0.9989961,0.0000189874,0.0006805332,0.00001433335,0.000085199,0.0000121703,0.00006294197,0.00001363553,0.0001160318],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.03337744,"threshold_uncertainty_score":0.7165108,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03774003776055257,"score_gpt":0.2960375494141201,"score_spread":0.2582975116535675,"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."}}