PMC:7510993 / 11975-12148 JSONTXT

{"project":"LitCovid-sentences","denotations":[{"id":"T59","span":{"begin":57,"end":146},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"om forest analysis, we generated 1,000 regression trees. The model performance was evaluated by the proportion of variance explained by the model. We evaluated the relative "}