74 citations · 192 across the 22 of their papers we have counts for
4 papers · 1 filter
A Direct Sampling Method for Inverse Electromagnetic Medium Scattering
Kazufumi Ito, Bangti Jin, Jun Zou
In this paper, we study the inverse electromagnetic medium scattering problem of estimating the support and shape of medium scatterers from scattered electric or magnetic near-fiel…
Nonsmooth method for constrained optimization
Kazufumi Ito, Tomoya Takeuchi
We propose an implicit iterative algorithm for an exact penalty method arising from inequality constrained optimization problems. A rapidly convergent fixed point method is develop…
A Two-stage Method for Inverse Medium Scattering
Kazufumi Ito, Bangti Jin, Jun Zou
We present a novel numerical method to the time-harmonic inverse medium scattering problem of recovering the refractive index from near-field scattered data. The approach consists…
An adjoint control method for initial condition identification of the Abstract Cauchy problem
Cary Humber, Kazufumi Ito
This paper develops and analyzes a generic method for reconstructing solutions to the abstract Cauchy problem in a general Hilbert space, from noisy measured data. The method is ba…