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Detección de negaciones×Minería de Texto Clínico×
CampoMinería de textoMinería de texto
FamiliaProcess / pipelineProcess / pipeline
Año de origen2001 (NegEx); scope learning formalised by 20092000s–2020s (established domain; BioBERT milestone 2020)
Autor originalChapman et al. (NegEx algorithm, 2001); Morante & Daelemans (scope learning, 2009)Community-driven; foundational work by i2b2/UTHealth NLP challenges and BioBERT (Lee et al., 2020)
TipoNLP information-extraction taskNLP information-extraction pipeline
Fuente seminalChapman, W.W., Bridewell, W., Hanbury, P., Cooper, G.F., & Buchanan, B.G. (2001). A Simple Algorithm for Identifying Negated Findings and Diseases in Discharge Summaries. Journal of the American Medical Informatics Association, 8(6), 606-614. DOI ↗Lee, J., Yoon, W., Kim, S., Kim, D., Kim, S., So, C. H., & Kang, J. (2020). BioBERT: a pre-trained biomedical language representation model for biomedical text mining. Bioinformatics, 36(4), 1234–1240. DOI ↗
Aliasnegation scope identification, negation cue detection, Olumsuzlama Tespiti (Negation Detection)clinical NLP, clinical information extraction, Klinik Metin Madenciliği
Relacionados65
ResumenNegation detection is a natural-language-processing task that locates negation cues in text — words or phrases such as 'no', 'not', 'without', or 'denies' — and determines the span of text (the scope) whose meaning those cues invert. Formalised for clinical text by Chapman et al. (2001) with the NegEx algorithm and extended to scope learning in biomedical literature by Morante and Daelemans (2009), the method is essential wherever the difference between a finding being present and its being explicitly ruled out carries real consequences.Clinical text mining is a specialised branch of natural language processing that extracts structured clinical facts — diagnoses, symptoms, medications, treatments, and ICD codes — from unstructured healthcare documents such as discharge summaries, progress notes, and radiology reports. Grounded in biomedical NLP models like BioBERT (Lee et al., 2020) and the i2b2/UTHealth shared-task benchmarks (Stubbs & Uzuner, 2015), it converts free-text clinical narratives into machine-readable data suitable for clinical decision support and health analytics.
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ScholarGateComparar métodos: Negation Detection · Clinical Text Mining. Recuperado el 2026-06-18 de https://scholargate.app/es/compare