activity
20232026
collaborators

7 papers

cs.AI2026

AI Alignment through a Game-theoretic Lens: A Survey

Yanan Cai, Zhongrui Zhao, Zhigang Lu +6

As large language models and increasingly capable AI agents are deployed in high-risk settings, aligning them with complex human values has become a central challenge. Existing ali…

cs.AI2026

Toward Trustworthy AI: Multi-Target Adversarial Attacks and Robust Defenses for Continuous Data Summarization

Yuefang Lian, Longkun Guo, Zhongrui Zhao +5

Trustworthy AI requires reliable data-processing pipelines, not only robust downstream predictive models. As an upstream component, data summarization determines which information…

cs.LG2026

Approximation Algorithm for Constrained -Center Clustering: A Local Search Approach

Chaoqi Jia, Longkun Guo, Kewen Liao +3

Clustering is a long-standing research problem and a fundamental tool in AI and data analysis. The traditional k-center problem, a fundamental theoretical challenge in clustering,…

cs.LG2026

Optimized Algorithms for Text Clustering with LLM-Generated Constraints

Chaoqi Jia, Weihong Wu, Longkun Guo +3

Clustering is a fundamental tool that has garnered significant interest across a wide range of applications including text analysis. To improve clustering accuracy, many researcher…

cs.CR2024

Reconstruction of Differentially Private Text Sanitization via Large Language Models

Shuchao Pang, Zhigang Lu, Haichen Wang +3

Differential privacy (DP) is the de facto privacy standard against privacy leakage attacks, including many recently discovered ones against large language models (LLMs). However, w…

cs.LG2024

Near-Optimal Algorithms for Constrained k-Center Clustering with Instance-level Background Knowledge

Longkun Guo, Chaoqi Jia, Kewen Liao +2

Center-based clustering has attracted significant research interest from both theory and practice. In many practical applications, input data often contain background knowledge tha…

cs.CR2023

VeriDIP: Verifying Ownership of Deep Neural Networks through Privacy Leakage Fingerprints

Aoting Hu, Zhigang Lu, Renjie Xie +1

Deploying Machine Learning as a Service gives rise to model plagiarism, leading to copyright infringement. Ownership testing techniques are designed to identify model fingerprints…