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Provable Certificates for Adversarial Examples: Fitting a Ball in the Union of Polytopes

Neural Information Processing Systems

We relate the problem of computing pointwise robustness of these networks to that of computing the maximum norm ball with a fixed center that can be contained in a non-convex polytope. This isachallenging problem ingeneral, howeverweshowthat there exists an efficient algorithm to compute this for polyhedral complices. Further we show that piecewise linear neural networks partition the input space into a polyhedralcomplex.


Video Dynamics Prior: An Internal Learning Approach for Robust Video Enhancements

Neural Information Processing Systems

In this paper, we present a novel robust framework for low-level vision tasks, including denoising, object removal, frame interpolation, and super-resolution, that does not require any external training data corpus.



TETRIS: TilE-matching the TRemendous Irregular Sparsity

Neural Information Processing Systems

Compressing neural networks by pruning weights with small magnitudes can significantly reduce the computation and storage cost. Although pruning makes the model smaller,itisdifficult toget apractical speedup inmodern computing platforms such as CPU and GPU due to the irregularity.






Online EXP3 Learning in Adversarial Bandits with Delayed Feedback

Neural Information Processing Systems

Consider a player that in each of T rounds chooses one of K arms. An adversary chooses the cost of each arm in a bounded interval, and a sequence of feedback delays {dt} that are unknown to the player. After picking arm at at round t, the player receives the cost of playing this arm dt rounds later. In cases where t + dt > T, this feedback is simply missing.