{"id":"W2026700760","doi":"10.1016/j.laa.2014.01.027","title":"Nearly positive matrices","year":2014,"lang":"en","type":"article","venue":"Linear Algebra and its Applications","topic":"Matrix Theory and Algorithms","field":"Computer Science","cited_by":6,"is_retracted":false,"has_abstract":false,"ca_institutions":"","funders":"Banff International Research Station for Mathematical Innovation and Discovery","keywords":"Mathematics; Nonnegative matrix; Positive-definite matrix; Identity (music); Matrix (chemical analysis); Combinatorics; Identity matrix; Orthogonal matrix; Integer matrix; Complex matrix; Pure mathematics; Cone (formal languages); Matrix multiplication; Matrix analysis; Sequence (biology); Symmetric matrix; Eigenvalues and eigenvectors; Orthogonal basis; Algorithm","routes":{"ca_aff":false,"ca_fund":true,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0004206699,0.0007374528,0.0005576305,0.001076179,0.0007753319,0.002042612,0.0005696442,0.0007679906,0.01414967],"category_scores_gemma":[0.00335365,0.0003745115,0.0003309664,0.001156207,0.00131647,0.002715289,0.001567832,0.001731039,0.002855199],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004561076,"about_ca_system_score_gemma":0.0003772324,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0003348913,"about_ca_topic_score_gemma":0.0003582836,"domain_scores_codex":[0.9993879,0.0001457673,0.0000180266,0.000153908,0.0002360152,0.00005850094],"domain_scores_gemma":[0.9988391,0.0003401392,0.0001961878,0.0001885826,0.0002861169,0.0001499212],"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":[0.000036636,0.00001649863,0.000148894,0.00004584849,0.000008273149,0.00004216215,0.00005413474,0.001489592,0.00235619,0.9724482,0.005519253,0.01783433],"study_design_scores_gemma":[0.000006914537,0.00001660147,0.0002707702,0.00001055027,0.000005027704,0.0001963784,0.00003773325,0.009293234,0.00118856,0.9789549,0.01000711,0.00001218749],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":"theoretical_or_conceptual","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.1430636,0.003763225,0.5819007,0.004361947,0.001922,0.00009920841,0.001058972,0.0008575474,0.2629729],"genre_scores_gemma":[0.8349739,0.002287447,0.04787421,0.002000522,0.001657437,0.0001232354,0.0008045137,0.0003767739,0.1099019],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.01414967,"threshold_uncertainty_score":0.04733533,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.006334614927266322,"score_gpt":0.2308920656394825,"score_spread":0.2245574507122162,"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."}}