Chiral scatterers designed by Bayesian optimization

Hierarchical Problem Solving by the Bayesian Optimization Algorithm Hierarchical Problem Solving by the Bayesian Optimization Algorithm

The paper discusses three major issues. First, it discusses why it makes sense to approach problems in a hierarchical fashion. It deenes the class of hierarchically decomposable functions that can be used to test the algorithms that approach problems in this fashion. Finally, the Bayesian optimization algorithm (BOA) is extended in order to solve the proposed class of problems.

Experimentally demonstrated a unidirectional electromagnetic cloak designed by topology optimization

Optimized Compressed Sensing via Incoherent Frames Designed by Convex Optimization

The construction of highly incoherent frames, sequences of vectors placed on the unit hyper sphere of a finite dimensional Hilbert space with low correlation between them, has proven very difficult. Algorithms proposed in the past have focused in minimizing the absolute value off-diagonal entries of the Gram matrix of these structures. Recently, a method based on convex optimization that operat...

Optimization of electroacoustic absorbers by means of designed experiments

In multivariate systems, when it comes to identifying actual operating conditions ranges, or optimal settings, the use of constrained optimization is often required. Among the different tools for the engineer to perform such optimization, designed experiments offer accurate performances. In this paper, the optimization process of ‘‘electroacoustic absorbers” is investigated by means of response...

Imaging Strong Localized Scatterers with Sparsity Promoting Optimization

We study active array imaging of small but strong scatterers in homogeneous media when multiple scattering between them is important. We use the Foldy-Lax equations to model wave propagation with multiple scattering when the scatterers are small relative to the wavelength. In active array imaging we seek to locate the positions and reflectivities of the scatterers, that is, to determine the sup...