{"id":"W2072012053","doi":"10.1002/jcd.20176","title":"A S(3, {4, 6}, 18) with a subdesign S(3, 4, 8) does not exist","year":2007,"lang":"en","type":"article","venue":"Journal of Combinatorial Designs","topic":"graph theory and CDMA systems","field":"Engineering","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Winnipeg","funders":"Natural Sciences and Engineering Research Council of Canada","keywords":"Combinatorics; Mathematics","routes":{"ca_aff":true,"ca_fund":true,"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":[0.001009197,0.0004368671,0.0004373463,0.0004091027,0.00056732,0.0007581334,0.0003922145,0.0006562227,0.00578032],"category_scores_gemma":[0.002016557,0.0002313946,0.0003657324,0.000312384,0.0006824206,0.0007126043,0.0005591932,0.0004902616,0.000955279],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0006137342,"about_ca_system_score_gemma":0.0008725272,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0004237502,"about_ca_topic_score_gemma":0.001243854,"domain_scores_codex":[0.9990247,0.0003045506,0.0001135549,0.0002503959,0.0001759967,0.0001307394],"domain_scores_gemma":[0.9974292,0.000661311,0.0005484152,0.0005935782,0.0004860003,0.000281536],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"theoretical_or_conceptual","study_design_scores_codex":[0.01007616,0.001504284,0.03709215,0.0009563608,0.0003569259,0.001711366,0.0008062614,0.05563075,0.2907778,0.2648676,0.01194171,0.3242786],"study_design_scores_gemma":[0.001881035,0.01807123,0.01959773,0.0004227536,0.000574861,0.005807347,0.001094561,0.3017387,0.2475448,0.254354,0.1487285,0.0001843925],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.814334,0.000245768,0.1548235,0.0004498706,0.0001074591,0.0003599469,0.0005345711,0.0005627114,0.0285822],"genre_scores_gemma":[0.8946479,0.00006369791,0.09839568,0.0001930634,0.00001992835,0.0002454908,0.0003089876,0.00002470563,0.006100554],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.00578032,"threshold_uncertainty_score":0.01933706,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01920395524058051,"score_gpt":0.2298544657061826,"score_spread":0.2106505104656021,"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."}}