Publications associées à Méthode de la puissance itérée

MATHICSE Technical Report : Multi space reduced basis preconditioners for parametrized Stokes equations

Alfio Quarteroni, Simone Deparis, Andrea Manzoni, Niccolò Dal Santo

In this work we introduce a two-level preconditioner for the efficient solution of large scale saddlepoint linear systems arising from the finite element (FE) discretization of parametrized Stokes equations.The proposed preconditioner extends the Multi Spa ...

MATHICSE2018

Multi space reduced basis preconditioners for large-scale parametrized PDEs

Alfio Quarteroni, Simone Deparis, Andrea Manzoni, Niccolò Dal Santo

In this work we introduce a new two-level preconditioner for the efficient solution of large-scale linear systems arising from the discretization of parametrized PDEs. The proposed preconditioner combines in a multiplicative way a reduced basis solver, whi ...

2018

Recompression Of Hadamard Products Of Tensors In Tucker Format

Daniel Kressner, Lana Perisa

The Hadamard product features prominently in tensor-based algorithms in scientific computing and data analysis. Due to its tendency to significantly increase ranks, the Hadamard product can represent a major computational obstacle in algorithms based on lo ...

Siam Publications2017

Back to the Source: an Online Approach for Sensor Placement and Source Localization

Patrick Thiran, Laura Elisa Celis, Brunella Marta Spinelli

Source localization, the act of finding the originator of a disease or rumor in a network, has become an important problem in sociology and epidemiology. The localization is done using the infection state and time of infection of a few designated sensor no ...

2017

Conformal Mapping of Impedance Stability Models for System-Level Dynamics Assessments

Drazen Dujic, Francisco Daniel Freijedo Fernández, Uzair Javaid

Impedance stability methods are suitable for assessing the dynamics of power converters controllers, but also for ac/dc microgrids system level studies. This work proposes the combination of impedance modeling and conformal mapping for the identification o ...

2017

Frank-Wolfe Works for Non-Lipschitz Continuous Gradient Objectives: Scalable Poisson Phase Retrieval

Volkan Cevher, Quoc Tran Dinh, Alp Yurtsever, Yen-Huan Li, Ya-Ping Hsieh, Marwa El Halabi, Gergely Odor

We study a phase retrieval problem in the Poisson noise model. Motivated by the PhaseLift approach, we approximate the maximum-likelihood estimator by solving a convex program with a nuclear norm constraint. While the Frank-Wolfe algorithm, together with t ...

Ieee2016

MATHICSE Technical Report : Multi space reduced basis preconditioners for large-scale parametrized PDEs

Alfio Quarteroni, Simone Deparis, Andrea Manzoni, Niccolò Dal Santo

In this work we introduce a new two-level preconditioner for the efficient solution of large scale linear systems arising from the discretization of parametrized PDEs. The proposed preconditioner combines in a multiplicative way a reduced basis solver, whi ...

MATHICSE2016

MATHICSE Technical Report : Accelerated filtering on graphs using Lanczos method

Pierre Vandergheynst, Daniel Kressner, Nathanaël Perraudin, Ana Susnjara

Sinal-processing on graphs has developed into a very active field of research during the last decade. In particular, the number of applications using frames con-structed from graphs, like wavelets on graphs, has substantially increased. To attain scalabili ...

MATHICSE2015

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Méthode de la puissance itérée

MATHICSE Technical Report: Block Krylov subspace methods for functions of matrices II: Modified block FOM

MATHICSE Technical Report : Multi space reduced basis preconditioners for parametrized Stokes equations

Multi space reduced basis preconditioners for large-scale parametrized PDEs

Stochastic Composite Least-Squares Regression with Convergence Rate O(1/n)

Recompression Of Hadamard Products Of Tensors In Tucker Format

Back to the Source: an Online Approach for Sensor Placement and Source Localization

Conformal Mapping of Impedance Stability Models for System-Level Dynamics Assessments

Frank-Wolfe Works for Non-Lipschitz Continuous Gradient Objectives: Scalable Poisson Phase Retrieval

MATHICSE Technical Report : Multi space reduced basis preconditioners for large-scale parametrized PDEs

MATHICSE Technical Report : Accelerated filtering on graphs using Lanczos method

Graph Chatbot

Chattez avec Graph Search

Stochastic Composite Least-Squares Regression with Convergence Rate O(1/n)

MATHICSE Technical Report: Block Krylov subspace methods for functions of matrices II: Modified block FOM

MATHICSE Technical Report : Multi space reduced basis preconditioners for parametrized Stokes equations

Multi space reduced basis preconditioners for large-scale parametrized PDEs

Recompression Of Hadamard Products Of Tensors In Tucker Format

Back to the Source: an Online Approach for Sensor Placement and Source Localization

Frank-Wolfe Works for Non-Lipschitz Continuous Gradient Objectives: Scalable Poisson Phase Retrieval

MATHICSE Technical Report : Multi space reduced basis preconditioners for large-scale parametrized PDEs

MATHICSE Technical Report : Accelerated filtering on graphs using Lanczos method

Conformal Mapping of Impedance Stability Models for System-Level Dynamics Assessments