Class noise - PowerPoint PPT Presentation

Slides for “Data Mining” by I. H. Witten and E. Frank

Slides for “Data Mining” by I. H. Witten and E. Frank. 7. Engineering the input and output. Attribute selection Scheme-independent, scheme-specific Attribute discretization Unsupervised, supervised, error- vs entropy-based Nominal-to-binary conversion Dirty data Data cleansing

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441 views • 36 slides

Genre-based decomposition of email class noise

Genre-based decomposition of email class noise. Aleksander Ko ł cz Microsoft Gordon Cormack University of Waterloo. Class-noise. Noise in data mining: measurement/feature noise Class noise (label mis-assignment) Class noise can lead to inferior model induction

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316 views • 28 slides

Vocab 8

Vocab 8. 1) Adept – highly skilled; expert His statistics showed he was adept at basketball. 2) Audible – capable of being heard The teacher’s voice was barely audible over the class noise. 3) Azure – the blue color of a cloudless sky His eyes were so bright that they looked azure.

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348 views • 16 slides

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