PMC:7782580 / 34983-35133 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T265","span":{"begin":0,"end":150},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Five statistical indices, including sensitivity, specificity, precision, kappa coefficient, and F1 were used to evaluate the performance of the CNNCF."}