Efficient LLM Jailbreak via Adaptive Dense-to-sparse Constrained Optimization - Hu, Kai; Yu, Weichen; Li, Yining; Yao, Tianjun; Li, Xiang; Liu, Wenhe; Yu, Lijun; Shen, Zhiqiang; Chen, Kai; Fredrikson, Matt (Advances in Neural Information Processing Systems, 2024)