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Tropical Geometric Approach to Robust Deep Neural Networks against Adversarial Attacks

Mathematics of Data & Decisions

Speaker: Ruriko Yoshida, Naval Postgraduate School (Monterey)
Location: 1025 PSEL
Start time: Tue, May 14 2024, 3:10PM

We introduce a simple, easy to implement, and computationally efficient tropical convolutional neural network architecture that is robust against adversarial attacks. We exploit the tropical nature of piece-wise linear neural networks by embedding the data in the tropical projective torus in a single hidden layer which can be added to any model. We study the geometry of its decision boundary theoretically and show its robustness against adversarial attacks on image datasets using computational experiments.  This is joint work with C. Teska, K. Pasque, K. Miura, and J. Huang.