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dc.contributor.authorLippincott, Thomasen
dc.contributor.authorÓ, Séaghdha Diarmuiden
dc.contributor.authorKorhonen, Anna-Leenaen
dc.date.accessioned2011-06-18T05:00:27Z
dc.date.available2011-06-18T05:00:27Z
dc.date.issued2011-05-27en
dc.identifier.issn1471-2105
dc.identifier.urihttp://www.dspace.cam.ac.uk/handle/1810/238287
dc.description.abstractAbstractApplications of Natural Language Processing (NLP) technology to biomedical texts have generated significant interest in recent years. In this paper we identify and investigate the phenomenon of linguistic subdomain variation within the biomedical domain, i.e., the extent to which different subject areas of biomedicine are characterised by different linguistic behaviour. While variation at a coarser domain level such as between newswire and biomedical text is well-studied and known to affect the portability of NLP systems, we are the first to conduct an extensive investigation into more fine-grained levels of variation. Using the large OpenPMC text corpus, which spans the many subdomains of biomedicine, we investigate variation across a number of lexical, syntactic, semantic and discourse-related dimensions. These dimensions are chosen for their relevance to the performance of NLP systems. We use clustering techniques to analyse commonalities and distinctions among the subdomains. We find that while patterns of inter-subdomain variation differ somewhat from one feature set to another, robust clusters can be identified that correspond to intuitive distinctions such as that between clinical and laboratory subjects. In particular, subdomains relating to genetics and molecular biology, which are the most common sources of material for training and evaluating biomedical NLP tools, are not representative of all biomedical subdomains. We conclude that an awareness of subdomain variation is important when considering the practical use of language processing applications by biomedical researchers.
dc.languageEnglishen
dc.language.isoen
dc.titleExploring subdomain variation in biomedical languageen
dc.typeArticle
dc.date.updated2011-06-18T05:00:27Z
dc.rights.holderLippincott et al.; licensee BioMed Central Ltd.
prism.publicationDate2011en
dcterms.dateAccepted2011-05-27en
rioxxterms.versionofrecord10.1186/1471-2105-12-212en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2011-05-27en
dc.identifier.eissn1471-2105
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/G051070/1)


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