Masini cu suport vectorial Support vector machines (SVM)
Transcript of Masini cu suport vectorial Support vector machines (SVM)
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Masini cu suport vectorialSupport vector machines (SVM)
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Materiale de citit
• Capitolul 9 din cartea: An Introduction to Statistical Learning with Applications in R. Gareth James, Daniela Witten, Trevor Hastie and Robert Tibshirani. Springer-Verlag, 2013. (carte disponibilă gratuit online aici: http://www-bcf.usc.edu/~gareth/ISL/ )
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Ce sunt SVM?• Se reprezinta fiecare punct intr-
un spatiu n-dimensional (n fiindnumarul de atribute), sivaloarea unui atributreprezentand o coordonata
• Se cauta hiperplanul care separa cel mai bine punctele
• Vectorii support sunt coordonatele
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Care este hiperplanul cel mai bun?
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Care este hiperplanul cel mai bun?
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Care este hiperplanul cel mai bun?
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Care este hiperplanul cel mai bun?
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Care este hiperplanul cel mai bun?
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Care este hiperplanul cel mai bun?
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Care este hiperplanul cel mai bun?
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Care este hiperplanul cel mai bun?
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Parametrii optimi
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Kernelul
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Kernelul
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Kernelul
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Kernelul
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Kernelul
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Kernelul
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Kernelul
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Kernelul
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Bibliografie
• Informaţiile prezentate au fost colectate din diferite surse de pe internet, precum și din slide-urile conf.univ.dr. Ruxandra Stoean Univ. din Craiova, disponibile pe internet.
• https://www.analyticsvidhya.com/blog/2017/09/understaing-support-vector-machine-example-code/
• https://medium.com/deep-math-machine-learning-ai/chapter-3-1-svm-from-scratch-in-python-86f93f853dc
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