Improved Classification Rates for Localized Algorithms under Margin Conditions

di Ingrid Karin Blaschzyk (Autore)

Springer Fachmedien Wiesbaden, 2020

Support vector machines (SVMs) are one of the most successful algorithms on small and medium-sized data sets, but on large-scale data sets their training and predictions become computationally infeasible. The author considers a spatially defined data chunking method for large-scale learning problems, leading to so-called localized SVMs, and implements an in-depth mathematical analysis with theoretical guarantees, which in particular include classification rates. The statistical analysis relies on a new and simple partitioning based technique and takes well-known margin conditions into account that describe the behavior of the data-generating distribution. It turns out that the rates outperform known rates of several other learning algorithms under suitable sets of assumptions. From a practical point of view, the author shows that a common training and validation procedure achieves the theoretical rates adaptively, that is, without knowing the margin parameters in advance.

• Autore: Ingrid Karin Blaschzyk
• Editore: Springer Fachmedien Wiesbaden
• Anno: 2020
• Rilegatura: Paperback / softback
• Pagine: 126 p.
• Dimensioni: 210 x 148 mm
• EAN: 9783658295905

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