Denis EFIMOV

Senior Inria Researcher @ Valse team, Inria & CRIStAL, Lille

Parc scientifique de la Haute Borne
40, avenue Halley - Bat A - Park Plaza
59650 Villeneuve d'Ascq - France
Tel : (+33) 03 59 57 79 48
Fax : (+33) 03 59 57 78 50
E-mail : Denis.Efimov@inria.fr


. About me
I received my Ph.D. degree in Automatic Control from the Saint-Petersburg State Electrical Engineering University (Russia) in 2001, and Dr.Sc. degree in Automatic control in 2006 from the Institute for Problems of Mechanical Engineering RAS (Saint-Petersburg, Russia).

From 2000 to 2009 I was a research fellow at the Institute for Problems of Mechanical Engineering RAS, Control of Complex Systems Laboratory.
From 2006 to 2011 I was working in the L2S CNRS (Supelec, France), the Montefiore Institute (University of Liege, Belgium) and IMS CNRS lab (University of Bordeaux, France).

In 2011, I joined Inria (Lille - Nord Europe center).  Starting from 2018 I am the head of Valse team.

I am a co-author of more than 200 peer-reviewed journal papers.

I am a member of several IFAC TCs and a Senior Member of IEEE. I am also serving as an Associate Editor for IEEE Transactions on Automatic Control and Automatica (previously also for IFAC Journal on Nonlinear Analysis: Hybrid Systems and Asian Journal of Control).

See some of my recent work

The most of my recent publications can be found and downloaded from Inria HAL, ResearchGate or Google Scholar.

The list of selected publications:

  • Analysis and design of oscillations
    • Schiffer J., Efimov D. Strong and weak Leonov functions for global boundedness of state periodic systems. IEEE Trans. Automatic Control, 8(12), 2023.
    • Angeli D., Efimov D. Characterizations of Input-to-State Stability for Systems with Multiple Invariant Sets. IEEE Trans. Automatic Control, 60(12), 2015, pp. 3242−3256.
    • Efimov D., Perruquetti W., Shiriaev A. On existence of oscillations in hybrid systems. Nonlinear Analysis: Hybrid Systems, 12(5), 2014, pp. 104−116.
    • Efimov D., Fradkov A.L. Natural Wave Control in Lattices of Linear Oscillators. Systems & Control Letters, 61, 2012, pp. 887−893.
    • Efimov D. Phase resetting control based on direct phase response curve. Journal of Mathematical Biology,  63(5), 2011, pp. 855−879.
    • Efimov D., Fradkov A.L. Oscillatority of Nonlinear  Systems with Static Feedback. SIAM Journal on Optimization and Control, 48(2), 2009, pp. 618−640.
  • Interval observers
    • dos Reis de Souza A., Efimov D., Raïssi T. Robust output feedback MPC for LPV systems using interval observers. IEEE Trans. Automatic Control, 67(07), 2022, pp. 3188–3195.
    • Efimov D., Raïssi T., Chebotarev S., Zolghadri A. Interval State Observer for Nonlinear Time Varying Systems. Automatica, 49(1), 2013, pp. 200−205.
    • Efimov D., Raïssi T., Zolghadri A. Control of nonlinear and LPV systems: interval observer-based framework. IEEE Trans. Automatic Control, 58(3), 2013, pp. 773−782.
    • Efimov D., Fridman L.M., Raïssi T., Zolghadri A., Seydou R. Interval Estimation for LPV Systems Applying High Order Sliding Mode Techniques. Automatica, 48, 2012, pp. 2365−2371.
    • Raïssi T., Efimov D., Zolghadri A. Interval state estimation for a class of nonlinear systems. IEEE Trans. Automatic Control, 57(1), 2012, pp. 260−265.
  • Homogeneous systems
    • Efimov D., Polyakov A. Finite-time stability tools for control and estimation. Foundations and Trends in Systems and Control, 2021, pp. 1–206.
    • Sanchez T., Efimov D., Polyakov A. Discrete-Time Homogeneity: Robustness and Approximation.  Automatica, 122(12), 2020, pp. 109275.
    • Efimov D., Perruquetti W., Richard J.-P. Development Of Homogeneity Concept For Time-Delay Systems. SIAM Journal on Optimization and Control, 52(3), 2014, pp. 1403−1808.
    • Bernuau E., Efimov D., Perruquetti W., Polyakov A. On Homogeneity and Its Application in Sliding Mode. International Journal of Franklin Institute, 351(4), 2014, pp. 1866–1901.
    • Bernuau E., Polyakov A., Efimov D., Perruquetti W. Verification of ISS, iISS and IOSS properties applying weighted homogeneity. Systems & Control Letters, 62(12), 2013, pp. 1159–1167.
  • Estimation
    • Mei W., Ushirobira R., Efimov D. On nonlinear robust state estimation in generalized Persidskii systems. Automatica, 142(8), 2022, pp. 110411.
    • Bobtsov A.A., Efimov D., Pyrkin A.A., Zolghadri A. Switched Algorithm for Frequency Estimation with Noise Rejection. IEEE Trans. Automatic Control, 57(9), 2012, pp. 2400−2404.
    • Efimov D., Fridman L. A hybrid robust non-homogeneous finite-time differentiator. IEEE Trans. Automatic Control, 56(5), 2011, pp. 1213−1219.
    • Efimov D., Zolghadri A., Raïssi T. Actuators fault detection and compensation under feedback control. Automatica, 47(8), 2011, pp. 1699−1705.
    • Efimov D., Fridman L. Global sliding-mode observer with adjusted gains for locally Lipschitz systems. Automatica, 47(3), 2011, pp. 565–570.
  • Stability and stabilization
    • Aleksandrov A., Efimov D., Dashkovskiy S. Design of Finite/Fixed-time ISS-Lyapunov Functions for Mechanical Systems. Mathematics of Control, Signals, and Systems, 35, 2022, pp. 215–235.
    • Lopez-Ramirez F., Efimov D., Polyakov A., Perruquetti W. Finite-Time and Fixed-Time Input-to-State Stability: Explicit and Implicit Approaches. Systems & Control Letters, 144(10), 2020, pp. 104775.
    • Efimov D., Aleksandrov A. On estimation of rates of convergence in Lyapunov-Razumikhin approach.  Automatica, 116(6), 2020, pp. 108928.
    • Efimov D., Polyakov A., Fridman E., Perruquetti W., Richard J.-P. Comments on Finite-time Stability of Time-Delay Systems. Automatica, 50(7), 2014, pp. 1944–1947.
    • Efimov D. Global Lyapunov analysis of multi-stable nonlinear systems. SIAM Journal on Optimization and Control, 50(5), 2012, pp. 3132−3154.
    • Dashkovskiy S.N., Efimov D.V., Sontag E.D. Input to state stability and allied system properties. Automation and Remote Control, 72(8), 2011, pp. 1579−1614.
  • Supervisory systems
    • Efimov D., Loria A., Panteley E. Robust output stabilization: Improving performance via supervisory control. International Journal of Robust and Nonlinear Control, 21(10), 2011, pp. 1219–1236.
    • Efimov D. Uniting Global And Local Controllers Under Acting Disturbances. Automatica, 42, 2006, pp. 489–495.
See my research

Research interests:

    • Analysis and control of multi-stable systems
    • Interval, adaptive and hybrid observers
    • Homogeneous dynamical systems
    • Finite-time and fixed-time convergence
    • Estimation for living and cyberphysical systems

Projects:

    • IMAnAI Inria Challenge, 2023−2027
    • NOCIME ANR, 2024−2027
    • SyNPiD ANR, 2021−2023
    • Digitslid ANR, 2018−2021
    • COSY IPL, 2017−2020
    • Finite4SoS ANR, 2015−2020
    • WaQMoS ANR, 2015−2020
    • TurboTouch ANR, 2014−2019
    • Inria Associate Team HoTSMoCE, 2016−2018
    • ARCIR Region, 2014−2017
    • Chaslim ANR, 2011−2015

PhD students:

    • Mohamed Yassine Arkhis (with J.G. Lee), “Bursting and adaptive controller/observer: induced contraction”, Inria-Region, 2023−2026
    • Thomas Meunier (with O.-A. Maillard), “Synchronization of uncertain systems via reinforcement learning”, PEPR-Region, 2023−2026
    • Gildas Dadjo (with R. Ushirobira, A. Rappoport, J. Harmand), “Control and estimation for water treatment reactor”, INRAE/Inria, 2022−2025
    • Danilo Rodrigues De Lima (with R. Ushirobira), “Lie-algebra inspired design of estimation algorithms”, Inria-Region, 2022−2025
    • Wenjie Mei (with R. Ushirobira), “Synchronization and estimation in Persidskii systems”, Chinese Scientific Council, 2019−2022
    • Anatolii Khalin (with R. Ushirobira and G. Casiez), “Estimation of transfer function in human-computer interactions”, Inria, 2019−2022
    • Artem Nekhroshikh (with W. Perruquetti, A. Polyakov and I. Furtat), “Homogeneous control of time-delay systems in the presence of perturbations”, ITMO University-Centrale Lille, 2019−2022
    • Alex Reis (with J.-L. Gouzé and A. Polyakov), “Control and estimation of bacterial community”, Inria, 2018−2021
    • Edouard Leurent (with W. Perruquetti, O. Maillard and Y. Blanco), “Trajectory planification for autonomous vehicle”, CIFRE Renault, 2017−2020
    • Nelson de Figueiredo Barroso (with R. Ushirobira and D. Tran), “Analysis of climat changes using arctic bivalves”, Inria-Region, 2017−2020
    • Youness Braidiz  (with W. Perruquetti and A. Polyakov), “Control and estimation of PDE using homogeneity tools”, EC Lille, 2017−2020
    • Quentin Voortman (with J.-P. Richard and A. Pogromskiy, UCoCoS EU project), "Network control and estimation under restrictions on channel capacity", TU/e-EC LIlle, 2017−2021
    • Haik Silm (with R. Ushirobira, J.-P. Richard and  W. Michiels, UCoCoS EU project), “Design of distributed estimation algorithm converging in finite time”, EC Lille-KUL, 2016−2020
    • Tatiana Kharkovskaya (with J.-P. Richard and A. Kremlev), “Interval estimation of PDE”, EC Lille-ITMO, 2015−2019
    • Yue Wang (with W. Perruquetti and G. Zheng), “Development of indoor blimp robot”, Chinese Scientific Council, 2016−2019
    • Francisco Lopez-Ramirez (with W. Perruquetti and A. Polyakov), “Control and estimation using Implicit Lyapunov function approach”, Inria, 2015−2018
    • Gabriele Perozzi (with J.-M. Biannic and L. Planckaert), “Control of a mini quadrotor in a field of wind”, ONERA-Region, 2015−2018
    • Hafiz Ahmed (with R. Ushirobira and D. Tran), Inria-Region, 2013−2016
    • Zilong Shao  (with W. Perruquetti and G. Zheng), Chinese Scientific Council, 2013−2015
    • Matteo Guerra (with W. Perruquetti and G. Zheng), Inria, 2012−2014
    • Emmanuel Bernuau (with W. Perruquetti and E. Moulay), EC Lille, 2011−2013

Post-docs:

    • Jesus Mendoza Avila (Inria, ANR SyNPiD), 2021−2023
    • Tonametl Sanchez (Inria, Digitslid ANR), 2018−2019 
    • Nicolás Espitia  (Inria), 2017−2019
    • Stanislav Aranovskiy (Inria, TurboTouch ANR), 2015−2017
    • Lucien Etienne (Inria, Chaslim ANR + ARCIR Region projects), 2016−2017
    • Héctor Ríos Barajas (Inria, Chaslim ANR + ARCIR Region projects), 2014−2015
    • Andrei Polyakov (Inria, Chaslim ANR project), 2012−2013
    • Antonio Estrada (Inria), 2012−2014