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The Real Tropical Geometry of Neural Networks
March 19, 2024, 4:43 a.m. | Marie-Charlotte Brandenburg, Georg Loho, Guido Mont\'ufar
cs.LG updates on arXiv.org arxiv.org
Abstract: We consider a binary classifier defined as the sign of a tropical rational function, that is, as the difference of two convex piecewise linear functions. The parameter space of ReLU neural networks is contained as a semialgebraic set inside the parameter space of tropical rational functions. We initiate the study of two different subdivisions of this parameter space: a subdivision into semialgebraic sets, on which the combinatorial type of the decision boundary is fixed, and …
abstract arxiv binary classifier cs.lg difference function functions geometry inside linear math.co networks neural networks relu set space type
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