Results 31 to 40 of about 376,109 (314)

Robust Portfolio Optimization Using Pseudodistances. [PDF]

open access: yesPLoS ONE, 2015
The presence of outliers in financial asset returns is a frequently occurring phenomenon which may lead to unreliable mean-variance optimized portfolios.
Aida Toma, Samuela Leoni-Aubin
doaj   +1 more source

Robustness of A-optimal designs

open access: yesLinear Algebra and its Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Masaro, Joe, Wong, Chi Song
openaire   +1 more source

Optimality of Robust Online Learning

open access: yesFoundations of Computational Mathematics, 2023
In this paper, we study an online learning algorithm with a robust loss function $\mathcal{L}_σ$ for regression over a reproducing kernel Hilbert space (RKHS). The loss function $\mathcal{L}_σ$ involving a scaling parameter $σ>0$ can cover a wide range of commonly used robust losses.
Zheng-Chu Guo   +2 more
openaire   +3 more sources

Determining a Robust, Pareto Optimal Geometry for a Welded Joint [PDF]

open access: yes, 2014
Multi-criteria optimization problems are known to give rise to a set of Pareto optimal solutions where one solution cannot be regarded as being superior to another.
Radhi, Hazim E.   +3 more
core   +1 more source

Portfolio Selection by Robust Optimization [PDF]

open access: yesتحقیقات مالی, 2014
This paper discusses the portfolio selection based on robust optimization. Since the parameters values of the portfolio optimization problem such as price of the stock, dividends, returns, etc.
Azin Abrishami, Reza Yousefi Zenouz
doaj   +1 more source

Shortfall-Based Wasserstein Distributionally Robust Optimization

open access: yesMathematics, 2023
In this paper, we study a distributionally robust optimization (DRO) problem with affine decision rules. In particular, we construct an ambiguity set based on a new family of Wasserstein metrics, shortfall–Wasserstein metrics, which apply normalized ...
Ruoxuan Li, Wenhua Lv, Tiantian Mao
doaj   +1 more source

Kernel distributionally robust optimization [PDF]

open access: yes, 2020
We propose kernel distributionally robust optimization (Kernel DRO) using insights from the robust optimization theory and functional analysis. Our method uses reproducing kernel Hilbert spaces (RKHS) to construct a wide range of convex ambiguity sets ...
Zhu, Jia-Jie   +3 more
core   +1 more source

Optimal robust expensive optimization is tractable [PDF]

open access: yesProceedings of the 11th Annual conference on Genetic and evolutionary computation, 2009
Following a number of recent papers investigating the possibility of optimal comparison-based optimization algorithms for a given distribution of probability on fitness functions, we (i) discuss the comparison-based constraints (ii) choose a setting in which theoretical tight bounds are known (iii) develop a careful implementation using billiard ...
Rolet, Philippe   +2 more
openaire   +2 more sources

Hybrid Rocket Engine Design Optimization at Politecnico di Torino: A Review

open access: yesAerospace, 2021
Optimization of Hybrid Rocket Engines at Politecnico di Torino began in the 1990s. A comprehensive review of the related research activities carried out in the last three decades is here presented.
Lorenzo Casalino   +2 more
doaj   +1 more source

Cost-effective flexibilisation of an 80 MWe retrofitted biomass power plants: Improved combustion control dynamics using virtual air flow sensors

open access: yesCase Studies in Thermal Engineering, 2020
As they deliver dispatchable renewable energy, biomass power plants are expected to play a key role in the stability of the future electricity grids dominated by intermittent renewables.
J. Blondeau   +5 more
doaj   +1 more source

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