A Newton consensus method for distributed optimization ⁎The author acknowledges the financial support of the Natural Sciences and Engineering Research Council of Canada and the Fields Institute. Issue 2 (2020)

• Record Type: Journal Article
• Authors: Guay, Martin
• Is Part Of: IFAC-PapersOnLine. Volume 53:Issue 2(2020)
• Page Start: 5417
• Page End: 5422
• Publication Date: 2020
• Subjects: Newton consensus -- extremum seeking -- distributed optimization; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2020.12.1536
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: This manuscript proposes a distributed Newton seeking for the solution of distributed optimization problems with locally measured but unknown cost functions. The approach implements a Newton step for both the primal and dual problems that can be implemented in a completely decentralized fashion. Unlike existing techniques, no exchange of derivative information between agents is required. In addition, no explicit inversion of the Hessian information is required to generate the required Newton step. The local gradients and Hessians are estimated using a perturbation based extremum seeking control technique. A simulation study demonstrates the effectiveness of the technique.