Search Results for author: Qingna Li

Found 4 papers, 0 papers with code

An Efficient Method for Sample Adversarial Perturbations against Nonlinear Support Vector Machines

no code implementations12 Jun 2022 Wen Su, Qingna Li

By exploring the special property of nonlinear SVMs, we transform the optimization problem of attacking nonlinear SVMs into a nonlinear KKT system.

Optimization Models and Interpretations for Three Types of Adversarial Perturbations against Support Vector Machines

no code implementations7 Apr 2022 Wen Su, Qingna Li, Chunfeng Cui

In this paper, we investigate the optimization models and the interpretations for three types of adversarial perturbations against support vector machines, including sample-adversarial perturbations (sAP), class-universal adversarial perturbations (cuAP) as well as universal adversarial perturbations (uAP).

A Semismooth-Newton's-Method-Based Linearization and Approximation Approach for Kernel Support Vector Machines

no code implementations21 Jul 2020 Chen Jiang, Qingna Li

Motivated by this question and the idea in linearization framework, in this paper, we focus on the $L_2$-loss kernel SVM and propose a semismooth Newton's method based linearization and approximation approach for it.

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