Fixed-time neurodynamic optimization approach with time-varying coefficients to variational inequality problems and applications

Xingxing Ju, Xinsong Yang*, Shuang Yuan, Daniel W.C. Ho

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

3 Citations (Scopus)

Abstract

The article presents a novel fixed-time (FT) neurodynamic optimization approach featuring time-varying coefficients, tailored for variational inequality problems (VIPs). This method exhibits noteworthy properties, including FT convergence from any initial point, accelerated by the strategic selection of time-varying coefficients. Detailed upper bounds on the settling time for the time-varying neurodynamic approach are provided. Additionally, the article delves into the robustness of the neurodynamic approach against bounded noise disturbances. Three implementation ways by numerical discretization, analog circuits, and field-programmable gate array (FPGA) of the proposed FT neurodynamic optimization approach are demonstrated. Finally, two applications on Nash equilibrium seeking problems and image recovery are conducted to validate the practicability and superiority of the proposed time-varying neurodynamic approach. © 2024 Elsevier B.V.
Original languageEnglish
Article number108414
JournalCommunications in Nonlinear Science and Numerical Simulation
Volume140
Issue numberPart 2
Online published1 Nov 2024
DOIs
Publication statusPublished - Jan 2025

Funding

This work was supported in part by the National Natural Science Foundation of China under Grants 62373262 and 62403336, in part by the Fundamental Research Funds for Central Universities, China under Grant 2023SCU12009, in part by the Sichuan Province Natural Science Foundation of China under Grant 2023NSFSC1433, in part by the Seed Fund Project “Optimal Output Synchronization and Formation Control of Heterogeneous Multi agents under Switching Topology” from Sichuan University and Hong Kong and Macao Universities, in part by the Research Grants Council of Hong Kong under Grant CityU 11213023 and Grant CityU 11205724, in part by the Postdoctoral Fellowship Program (Grade B) of China Postdoctoral Science Foundation under Grant GZB20230467, and in part by the China Postdoctoral Science Foundation under Grant 2023M742457.

Research Keywords

  • Circuit implementation
  • Fixed-time convergence
  • Nash equilibrium seeking
  • Neurodynamic approaches
  • Variational inequality problems

RGC Funding Information

  • RGC-funded

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