Active Learning Classification from a Signal Separation Perspective

Hrushikesh Mhaskar; Ryan O'Dowd; Efstratios Tsoukanis

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arXiv · 2502.16425

Active Learning Classification from a Signal Separation Perspective

Hrushikesh Mhaskar·Ryan O'Dowd·Efstratios Tsoukanis

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Abstract

In machine learning, classification is usually seen as a function approximation problem, where the goal is to learn a function that maps input features to class labels. In this paper, we propose a novel clustering and classification framework inspired by the principles of signal separation. This approach enables efficient identification of class supports, even in the presence of overlapping distributions. We validate our method on real-world hyperspectral datasets Salinas and Indian Pines. The experimental results demonstrate that our method is competitive with the state of the art active learning algorithms by using a very small subset of data set as training points.

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Hrushikesh Mhaskar, Ryan O'Dowd, Efstratios Tsoukanis. 2025-02-23. Active Learning Classification from a Signal Separation Perspective. https://arxiv.org/abs/2502.16425

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