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A fictitious domain decomposition method for a nonlinear bonded structure

Autor: Jonas Koko, Amina Chorfi, Olivier Bodart

Publikováno v: Mathematics and Computers in Simulation
Mathematics and Computers in Simulation, 2021, 189, pp.114-125. ⟨10.1016/j.matcom.2020.09.003⟩

International audience; We study a fictitious domain decomposition method for a nonlinearly bonded structure. Starting with a strongly convex unconstrained minimization problem, we introduce an interface unknown such that the displacement problems on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a0d43d41bd624f7a8e8b237e91bb9f7
https://doi.org/10.1016/j.matcom.2020.09.003

Alternating direction method of multiplier for the unilateral contact problem with an automatic penalty parameter selection

Autor: Amina Chorfi, Jonas Koko

Publikováno v: Applied Mathematical Modelling. 78:706-723

We propose an alternating direction method of multiplier (ADMM) for the unilateral (frictionless) contact problem with an optimal parameter selection. We first introduce an auxiliary unknown to seprate the linear elasticity subproblem from the unilat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0ac38d7a0c1cff306ba821f571f38546
https://doi.org/10.1016/j.apm.2019.09.031

Stokes equation under Tresca friction boundary condition: a truncated approach

Autor: Jules Djoko Kamdem, Jonas Koko, Sognia Konlack

Publikováno v: [Research Report] African Peer Review Mechanism. 2021
HAL

In this paper, we discuss the convergence of the finite element solution of the Stokes equations under slip boundary condition of friction type. The weak formulation of this problem is a variational inequality of second type for which it is documente

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e3881004fba3fc812ff657b84a1480f9
https://hal.archives-ouvertes.fr/hal-03323588/file/ErrorAnalysis.pdf

Fuzzy k-NN Based Classifiers for Time Series with Soft Labels

Autor: Jonas Koko, Nicolas Wagner, Violaine Antoine, Romain Lardy

Publikováno v: Communications in Computer and Information Science
18. International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems
18. International Conference on Information Processing and Management of Uncertainty in Knowledge-Based Systems, Jun 2020, Lisbon, Portugal. pp.578-589, ⟨10.1007/978-3-030-50153-2_43⟩
Information Processing and Management of Uncertainty in Knowledge-Based Systems
Information Processing and Management of Uncertainty in Knowledge-Based Systems ISBN: 9783030501525
IPMU (3)

International audience; Time series are temporal ordered data available in many fields of science such as medicine, physics, astronomy, audio, etc. Various methods have been proposed to analyze time series. Amongst them, time series classification co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c246aa5a535e7f3ba27920ad25e6c3e
https://hal.inrae.fr/hal-02900605