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NMF-emnemodellering

NMF-emnemodellering anvender ikke-negativ matrixfaktorisering (Non-negative Matrix Factorization) — den delbaserede dekomponering introduceret af Lee og Seung (1999) — til at udtrække dokument-emne-fordelinger fra et korpus. Ved at faktorisere en dokument-term-matrix til to ikke-negative matricer genfinder den et lille sæt emner og tenderer til at producere mere fortolkelige emner end LDA.

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Kilder

  1. Lee, D.D. & Seung, H.S. (1999). Learning the Parts of Objects by Non-negative Matrix Factorization. Nature, 401, 788-791. DOI: 10.1038/44565
  2. Arora, S., Ge, R., Halpern, Y., Mimno, D., Moitra, A., Sontag, D., Wu, Y. & Zhu, M. (2013). A Practical Algorithm for Topic Modeling with Provable Guarantees. Proceedings of the 30th International Conference on Machine Learning (ICML), 280-288. link

Sådan citerer du denne side

ScholarGate. (2026, June 1). Topic Modeling with Non-negative Matrix Factorization. ScholarGate. https://scholargate.app/da/text-mining/topic-modeling-nmf

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ScholarGateNMF Topic Modeling (Topic Modeling with Non-negative Matrix Factorization). Hentet 2026-06-15 fra https://scholargate.app/da/text-mining/topic-modeling-nmf · Datasæt: https://doi.org/10.5281/zenodo.20539026