collaborators

17 papers

math.OC2026

Decentralized Linearized Consensus ADMM with Efficient Quantized Communication

Boyu Han, Xu Du, Karl H. Johansson +1

Distributed optimization offers significant advantages over centralized methods in terms of scalability and robustness when solving large-scale problems. In this paper, we propose…

math.OC2026

CADMM-Prox: A Bi-level Consensus ADMM for Non-smooth Non-convex Distributed Consensus Optimization

Xu Du, Shuting Wu, Karl H. Johansson +1

Non-smooth and non-convex optimization problems are pervasive in machine learning, control, and signal processing, due to the need for sparse solutions and the inherently non-conve…

math.OC2026

Unified Communication Compression Beyond Global Error Bounds for Distributed Nonconvex Optimization

Haonan Wang, Minghui Liwang, Yiguang Hong +2

In this paper, we propose a unified compression algorithm for distributed nonconvex opitmization with both the locally- and globally-bounded communication compressors, including 1-…

eess.SY2026

A Global Convergence Analysis of Consensus ALADIN for Convex Optimization

Xu Du, Shuting Wu, Karl H. Johansson +1

Distributed optimization problems are pervasive in machine learning and optimal control. In this paper, we study smooth strongly convex distributed consensus optimization problems.…

math.OC2026

Distributed and Decentralized Optimization Algorithms via Consensus ALADIN

Xu Du, Jingzhe Wang, Karl H. Johansson +1

Distributed optimization has found widespread applications in smart grids, optimal control, and machine learning. This paper studies distributed consensus optimization. We extend t…

eess.SY2026

Nesterov Accelerated Distributed Optimization with Efficient Quantized Communication

Ruochen Wu, Xu Du, Karl H. Johansson +1

In modern large-scale networked systems, rapidly solving optimization problems while utilizing communication resources efficiently is critical for addressing complex tasks. In this…