title: "Bag of words" is not enough for strength of evidence classification.
abstract: Incorporation of evidence from clinical research requires critical appraisal of its quality. Information retrieval systems can facilitate clinicians' judgments by automatically labeling retrieved citations with their strength of evidence categories. Preliminary results of such a text classification experiment involving MEDLINE citations show that a "bag of words" approach is insufficient for accurate classification.
authors.affiliation: University of Maryland, College Park, USA.
authors.forename: Jimmy
authors.initials: J
authors.lastname: Lin
authors.forename: Dina
authors.initials: D
authors.lastname: Demner-Fushman
mesh_terms: D001185:Artificial Intelligence; D001499:Bayes Theorem; D019317:Evidence-Based Medicine / Q000145:classification*; D006801:Humans; D016247:Information Storage and Retrieval; D016239:MEDLINE