{"id":"W2555901596","doi":"","title":"Position Paper) Motivating the Need for Evaluation Criteria for Captchas","year":2012,"lang":"en","type":"article","venue":"","topic":"User Authentication and Security Systems","field":"Computer Science","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"Carleton University","funders":"","keywords":"CAPTCHA; Heuristics; Usability; Computer science; Set (abstract data type); Mantra; Human–computer interaction; Scheme (mathematics); Position paper; Heuristic evaluation; Artificial intelligence; World Wide Web; Programming language; Mathematics","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":[0.04175038,0.001182942,0.000648073,0.003586745,0.003004109,0.0116161,0.002686559,0.004174425,0.01350939],"category_scores_gemma":[0.1647414,0.0005647924,0.0008258267,0.002801963,0.004328371,0.009468485,0.002648827,0.003243875,0.0039094],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.004807665,"about_ca_system_score_gemma":0.004055403,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.003593719,"about_ca_topic_score_gemma":0.005978542,"domain_scores_codex":[0.9422191,0.03120114,0.004415045,0.003188288,0.01755344,0.001422968],"domain_scores_gemma":[0.7322008,0.1509954,0.011211,0.01650869,0.08518825,0.003895845],"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":[0.0007141103,0.000998448,0.007647821,0.003908847,0.0001051893,0.0006332455,0.009340088,0.008179297,0.01873903,0.3633944,0.08588494,0.5004546],"study_design_scores_gemma":[0.0003937309,0.003565839,0.01315209,0.004896414,0.0002639884,0.002460615,0.01993558,0.07465557,0.0573305,0.2302797,0.5923163,0.000749756],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"methods","genre_gemma":"commentary","genre_scores_codex":[0.04000444,0.002462843,0.8081522,0.01797525,0.00212717,0.005897323,0.0008718882,0.002930606,0.1195783],"genre_scores_gemma":[0.2511674,0.0006951175,0.7309436,0.003125071,0.0003341974,0.002379823,0.0006091814,0.0006334521,0.0101121],"genre_candidate":"commentary","genre_consensus":null,"teacher_disagreement_score":0.04175038,"threshold_uncertainty_score":0.2207998,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.06844448078194897,"score_gpt":0.3429094127338386,"score_spread":0.2744649319518896,"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."}}