研究者
J-GLOBAL ID:202001015933245458   更新日: 2022年08月10日

セメリス アンドレアス

Themelis Andreas
所属機関・部署:
競争的資金等の研究課題 (2件):
  • 2021 - 2023 The project is concerned with optimization algorithms for engineering, in compliance with the application challenges: efficiency, limited power of microprocessors, and nonconvexity of the problems. The final goal is to provide efficient open-source multi-purpose software with theoretical guarantees.
  • 2021 - 2021 The main objective of the project is to develop learning-based techniques for devising ad-hoc tuning-free optimization algorithms for convex and nonconvex optimization problems. A novel universal framework will be developed, which will serve as a solid theoretical ground for the development of new learning paradigms to train optimization methods subject to certificates of (speed of) conver-gence and quality of output solution.
論文 (6件):
  • Alberto De Marchi, Andreas Themelis. Proximal Gradient Algorithms under Local Lipschitz Gradient Continuity: A Convergence and Robustness Analysis of PANOC. Journal of Optimization Theory and Applications. 2022. 194. 771-794
  • Hongjia Ou, Andreas Themelis, Tsuyoshi Yuno, Taketoshi Kawabe. Douglas-Peucker piecewise affine approximation of an optimal fuel consumption problem to apply PANOC. 2022 SICE International Symposium on Control Systems (SICE ISCS). 2022. 34-38
  • Brecht Evens, Puya Latafat, Andreas Themelis, Johan Suykens, Panagiotis Patrinos. Neural network training as an optimal control problem: An augmented Lagrangian approach. 2021 60th IEEE Conference on Decision and Control (CDC). 2022. 5136-5143
  • Miguel Simoes, Andreas Themelis, Panagiotis Patrinos. Lasry-Lions Envelopes and Nonconvex Optimization: A Homotopy Approach. 2021 29th European Signal Processing Conference (EUSIPCO). 2021. 2089-2093
  • Pantelis Sopasakis, Andreas Themelis, Johan Suykens, Panagiotis Patrinos. A primal-dual line search method and applications in image processing. 2017 25th European Signal Processing Conference (EUSIPCO). 2017. 1065-1069
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MISC (15件):
  • Ben Hermans, Andreas Themelis, Panagiotis Patrinos. QPALM: A Proximal Augmented Lagrangian Method for Nonconvex Quadratic Programs. 2020
  • Andreas Themelis, Lorenzo Stella, Panagiotis Patrinos. Douglas-Rachford splitting and ADMM for nonconvex optimization: Accelerated and Newton-type algorithms. 2020
  • Andreas Themelis, Ben Hermans, Panagiotis Patrinos. A new envelope function for nonsmooth DC optimization. 2020
  • Nico Vervliet, Andreas Themelis, Panagiotis Patrinos, Lieven De Lathauwer. A quadratically convergent proximal algorithm for nonnegative tensor decomposition. 2020
  • Ben Hermans, Andreas Themelis, Panagiotis Patrinos. QPALM: A Newton-type Proximal Augmented Lagrangian Method for Quadratic Programs. 2019
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講演・口頭発表等 (9件):
  • A universal majorization-minimization framework for the convergence analysis of nonconvex proximal algorithms
    (6th International Conference on Continuous Optimization 2019)
  • Proximal envelopes
    (17th IEEE European Control Conference 2018)
  • A simple and efficient algorithm for Nonlinear MPC
    (56th IEEE Conference on Decision and Control 2017)
  • Accelerated Douglas-Rachford splitting and ADMM for structured nonconvex optimization
    (CMO-BIRS Workshop on Splitting Algorithms, Modern Operator Theory and Applications 2017)
  • Newton-type proximal algorithms for nonconvex optimization
    (LCCC focus period on large scale and distributed optimization 2017)
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