Use of General-purpose Negation Detection to Augment Concept Indexing of Medical Documents
Mutalik P, Deshpande A, Nadkarni P. Use of General-purpose Negation Detection to Augment Concept Indexing of Medical Documents. Journal Of The American Medical Informatics Association 2001, 8: 598-609. PMID: 11687566, PMCID: PMC130070, DOI: 10.1136/jamia.2001.0080598.Peer-Reviewed Original ResearchMeSH KeywordsAbstracting and IndexingInformation Storage and RetrievalMedical RecordsNatural Language ProcessingProgramming LanguagesSoftwareUnified Medical Language SystemConceptsNegation detectionMedical documentsUMLS conceptsProgramming language compilersFinite state machinesLanguage compilerConcept indexingMedical narrativesContext-free grammarsConcept matchingLexical scannerAbsence of negationDifferent test setsFormal languageState machinesRegular expressionsReliability of detectionDiverse training setConcept IDsTraining setParserHuman observationTest setLarge setHuman observers