Results 141 to 150 of about 22,720 (280)

A general approach to enhance the survivability of backdoor attacks by decision path coupling [PDF]

open access: yesarXiv
Backdoor attacks have been one of the emerging security threats to deep neural networks (DNNs), leading to serious consequences. One of the mainstream backdoor defenses is model reconstruction-based. Such defenses adopt model unlearning or pruning to eliminate backdoors. However, little attention has been paid to survive from such defenses.
arxiv  

Snake graph calculus and cluster algebras from surfaces II: Self-crossing snake graphs [PDF]

open access: yesarXiv, 2014
Snake graphs appear naturally in the theory of cluster algebras. For cluster algebras from surfaces, each cluster variable is given by a formula which is parametrized by the perfect matchings of a snake graph. In this paper, we continue our study of snake graphs from a combinatorial point of view.
arxiv  

Subdivision based snakes for contour detection [PDF]

open access: yesarXiv, 2018
In this paper we propose a method for computing the contour of an object in an image using a snake represented as a subdivision curve. The evolution of the snake is driven by its control points which are computed minimizing an energy that pushes the snake towards the boundary of the interest region.
arxiv  

Globally centered discrete snakes [PDF]

open access: yesarXiv, 2006
We consider branching random walks built on Galton-Watson trees with offspring distribution having a bounded support, conditioned to have $n$ nodes, and their rescaled convergences to the Brownian snake. We exhibit a notion of "globally centered discrete snake'' that extends the usual settings in which the displacements are supposed centered.
arxiv  

Nonreversible Homoclinic Snaking [PDF]

open access: yesarXiv, 2010
Homoclinic snaking refers to the sinusoidal snaking continuation curve of homoclinic orbits near a heteroclinic cycle connecting an equilibrium E and a periodic orbit P. Along this curve the homoclinic orbit performs more and more windings about the periodic orbit. Typically this behaviour appears in reversible Hamiltonian systems. Here we discuss this
arxiv  

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