{"id":"W2151819609","doi":"10.1145/2441776.2441870","title":"\"Welcome!\"","year":2013,"lang":"en","type":"article","venue":"","topic":"Social Media and Politics","field":"Social Sciences","cited_by":40,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"Michigan State University","keywords":"Prosocial behavior; Reciprocity (cultural anthropology); Socialization; Online community; Social psychology; Psychology; Social identity theory; Volunteer; Social media; Computer science; Social group; World Wide Web","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":[0.001294256,0.0003676758,0.0002443511,0.0007641976,0.002126675,0.002067765,0.000434471,0.0007045752,0.1150599],"category_scores_gemma":[0.00558461,0.0001908667,0.0002450859,0.0004413493,0.0006551919,0.00337581,0.002866923,0.001108898,0.05909678],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002638338,"about_ca_system_score_gemma":0.0004451126,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0006332039,"about_ca_topic_score_gemma":0.002240919,"domain_scores_codex":[0.9991781,0.0003736211,0.00003314473,0.00008307082,0.0002034055,0.0001285642],"domain_scores_gemma":[0.9963695,0.0006431004,0.0003885209,0.0004923311,0.0005842644,0.001522322],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0001903539,0.0001647058,0.008291179,0.0002584846,0.00001860984,0.000396184,0.009726959,0.00003750704,0.002139093,0.01476207,0.7230769,0.240938],"study_design_scores_gemma":[0.00001071748,0.00007725869,0.004352626,0.00005691257,0.000007219699,0.000342542,0.002928435,0.00009441022,0.0004202507,0.001302981,0.990386,0.00002070268],"study_design_candidate":"not_applicable","study_design_consensus":"not_applicable","genre_codex":"other","genre_gemma":"other","genre_scores_codex":[0.1272259,0.002720376,0.02107828,0.02322954,0.01155591,0.0006631516,0.00352104,0.007301691,0.8027041],"genre_scores_gemma":[0.2100186,0.001216407,0.009111942,0.008506006,0.002525047,0.000349555,0.001688867,0.001568724,0.7650148],"genre_candidate":"other","genre_consensus":"other","teacher_disagreement_score":0.1150599,"threshold_uncertainty_score":0,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.03619550509642149,"score_gpt":0.3384228309598812,"score_spread":0.3022273258634597,"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."}}