Yimu Wang

Cooperation or Competition: Avoiding Player Domination for Multi-Target Robustness via Adaptive Budgets

2023 · arXiv (Cornell University)

Despite incredible advances, deep learning has been shown to be susceptible to adversarial attacks. Numerous approaches have been proposed to train robust networks both empirically and certifiably. However, most of them defend against only a …

Gradient-Based Word Substitution for Obstinate Adversarial Examples Generation in Language Models

2023 · arXiv (Cornell University)

In this paper, we study the problem of generating obstinate (over-stability) adversarial examples by word substitution in NLP, where input text is meaningfully changed but the model's prediction does not, even though it should. Previous …