{"id":"W2399228482","doi":"","title":"Context Derivation Sets and Context-Free Normal Forms.","year":2002,"lang":"en","type":"article","venue":"DCFS","topic":"Natural Language Processing Techniques","field":"Computer Science","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"Western University","funders":"","keywords":"Terminal and nonterminal symbols; Context-free grammar; Symbol (formal); Context-sensitive grammar; Tree-adjoining grammar; Mathematics; Grammar; Context (archaeology); Mildly context-sensitive grammar formalism; Computer science; Indexed grammar; Rule-based machine translation; Natural language processing; Linguistics; Generative grammar; Artificial intelligence; Phrase structure rules; Programming language","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":[0.001704444,0.0008572045,0.0004837271,0.001925881,0.001181972,0.003063068,0.00132172,0.001190577,0.007943152],"category_scores_gemma":[0.007099997,0.0006549887,0.001113296,0.001729354,0.003764802,0.006020477,0.002479149,0.003301713,0.003544499],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001333629,"about_ca_system_score_gemma":0.001249376,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001338345,"about_ca_topic_score_gemma":0.001482763,"domain_scores_codex":[0.9970375,0.0007063227,0.0002670496,0.0006268503,0.001219771,0.0001424793],"domain_scores_gemma":[0.9971349,0.001463876,0.0001573569,0.0006233358,0.0005167,0.0001037117],"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":[0.0000184797,0.00001759941,0.0001374669,0.00008386944,0.000009630247,0.0001372251,0.000301615,0.002159027,0.001298973,0.9212418,0.002209896,0.07238446],"study_design_scores_gemma":[0.00001222733,0.00001261444,0.00007375302,0.0000435595,0.00000998232,0.0002918686,0.00005832075,0.008086578,0.002715515,0.9518455,0.03683452,0.00001553931],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.008100898,0.001149868,0.9522653,0.0005793729,0.0001897283,0.0001633808,0.0003082416,0.001733883,0.03550934],"genre_scores_gemma":[0.1809567,0.001791768,0.7905689,0.0005913172,0.0003133823,0.000533822,0.001586238,0.0007676315,0.02289033],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.007943152,"threshold_uncertainty_score":0.02657247,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01591446828257888,"score_gpt":0.2380189876566181,"score_spread":0.2221045193740392,"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."}}