{"id":"W1982895103","doi":"10.1016/s0012-365x(03)00031-1","title":"Bhaskar Rao designs with block size four","year":2003,"lang":"en","type":"article","venue":"Discrete Mathematics","topic":"graph theory and CDMA systems","field":"Engineering","cited_by":8,"is_retracted":false,"has_abstract":false,"ca_institutions":"Concordia University","funders":"","keywords":"Mathematics; Block size; Incidence matrix; Combinatorics; Block (permutation group theory); Block design; Row; Discrete mathematics; Product (mathematics); Computer science; Key (lock)","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":[0.0002465938,0.0002016082,0.0002438768,0.00003555707,0.00006544856,0.00004700521,0.0001332506,0.00006759774,0.00009609228],"category_scores_gemma":[0.00006077606,0.0001534747,0.00006818078,0.0001750045,0.00003689383,0.00006935072,0.000007255737,0.000114121,0.0001153868],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00001772391,"about_ca_system_score_gemma":0.00001016903,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":5.912242e-7,"about_ca_topic_score_gemma":0.000002336803,"domain_scores_codex":[0.9991654,0.00003972399,0.0002269392,0.0001224044,0.0001700465,0.0002754742],"domain_scores_gemma":[0.9993302,0.0001576237,0.00004035259,0.000361687,0.0000232031,0.00008699124],"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":[0.00003942478,0.0002531778,0.001018605,0.003669525,0.001052347,0.00022786,0.01658938,0.02914893,0.02454882,0.9181266,0.004960161,0.0003651595],"study_design_scores_gemma":[0.009595023,0.001338381,0.0007452578,0.003589841,0.001421373,0.003435337,0.03112962,0.1142922,0.2034428,0.5413772,0.08099775,0.008635247],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.7149882,0.0003141618,0.09715576,0.00002592406,0.0003414147,0.000652069,0.00001680074,0.0008174079,0.1856883],"genre_scores_gemma":[0.9864044,0.000006680879,0.01245739,0.00001598704,0.00002672677,0.00003223475,0.000001057968,0.00006250787,0.0009930027],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.3767495,"threshold_uncertainty_score":0.6258517,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01675967131509911,"score_gpt":0.1989495018509451,"score_spread":0.182189830535846,"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."}}