Sampling Unknown Decision Functions to Build Classifier Copies

Unceta, Irene, Palacios, Diego, Nin, Jordi, Pujol, Oriol Machine Learning 

Copies have been proposed as a viable alternative to endow machine learning models with properties and features that adapt them to changing needs. A fundamental step of the copying process is generating an unlabelled set of points to explore the decision behavior of the targeted classifier throughout the input space. In this article we propose two sampling strategies to produce such sets. We validate them in six well-known problems and compare them with two standard methods. We evaluate our proposals in terms of both their accuracy performance and their computational cost.

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