When the function to be optimized is characterized by a limited and unknown number of interactions among variables, a context that applies to many real world scenario, it is possible to design optimization algorithms based on such information. Estimation of Distribution Algorithms learn a set of interactions from a sample of points and encode them in a probabilistic model. The latter is then us...

Physical systems can be modeled at many levels of approximation. The right model depends on the problem to be solved. In many cases, a combination of models will be more eeective than a single model alone. Our research investigates this idea in the context of engineering design optimization. We present a family of strategies that use multiple models for unconstrained optimization of engineering...

When the function to be optimized is characterized by a limited and unknown number of interactions among variables, a context that applies to many real world scenario, it is possible to design optimization algorithms based on such information. Estimation of Distribution Algorithms learn a set of interactions from a sample of points and encode them in a probabilistic model. The latter is then us...

In this letter an exact series representation for a near eld spherically isotropic noise model is introduced The proposed noise model can be utilized e ectively to ap ply well established far eld array processing algorithms for near eld applications of sensor arrays A simple array gain optimization is used to demonstrate the use of the new noise model

This paper demonstrates the application of correlated Gaussian process based approximations to optimization where multiple levels of analysis are available, using an extension to the geostatistical method of co-kriging. An exchange algorithm is used to choose which points of the search space to sample within each level of analysis. The derivation of the co-kriging equations is presented in an i...

Utilizing exoskeleton devices to help elderly or empower workers is a growing field of research in robotics. The structure an can vary depending on user’s physical dimensions, joints muscles targeted for assistance, and maximum achievable actuator torque. In this research, Human-Model-In-the-Loop (HMIL) constrained optimization technique proposed design the RoboWalk lower-limb exoskeleton. unde...