Results 31 to 40 of about 67,878 (263)

Optimization and Improvement of Gas Spring Design in An Energy Storing Prosthetic Knee

open access: yesInternational Journal of Technology, 2015
In this research, an optimization and improvement of gas spring design is discussed. The gas spring is used as a suspension component of an energy storing prosthetic knee. The gas spring replaces the quadricep muscles of transfemoral amputee.
Cucuk Nur Rosyidi   +2 more
doaj   +1 more source

On the Convergence of Stochastic Process Convergence Proofs

open access: yesMathematics, 2021
Convergence of a stochastic process is an intrinsic property quite relevant for its successful practical for example for the function optimization problem.
Borja Sánchez-López, Jesus Cerquides
doaj   +1 more source

Stochastic Variational Optimization

open access: yesCoRR, 2018
Variational Optimization forms a differentiable upper bound on an objective. We show that approaches such as Natural Evolution Strategies and Gaussian Perturbation, are special cases of Variational Optimization in which the expectations are approximated by Gaussian sampling.
Thomas Bird, Julius Kunze, David Barber
openaire   +2 more sources

Model and algorithm for vehicle routing problem with spatial-temporal correlated stochastic travel times

open access: yes四川大学学报. 自然科学版, 2021
This paper studies a version of vehicle routing problem with spatial-temporal correlated stochastic travel times in real road networks. First,a two-stage stochastic optimization model is established for this problem.
ZHANG Dong-Qing   +2 more
doaj  

A novel simulation–optimization strategy for stochastic‐based designing of flood control dam: A case study of Jamishan dam

open access: yesJournal of Flood Risk Management, 2021
This study presents a novel stochastic simulation–optimization approach for optimum designing of flood control dam through incorporation of various sources of uncertainties. The optimization problem is formulated based on two objective functions, namely,
Ahmad Sharafati   +2 more
doaj   +1 more source

Optimization of stochastic systems [PDF]

open access: yesProceedings of the 18th conference on Winter simulation - WSC '86, 1986
This paper gives a short survey of Monte Carlo algorithms for stochastic optimization. Both discrete and continuous parameter stochastic optimization are discussed, with emphasis on the analysis of convergence rate. Some future research directions for the area are also indicated.
openaire   +1 more source

Optimal Stochastic Enhancement of Photoionization [PDF]

open access: yesPhysical Review Letters, 2007
The effect of noise on the nonlinear photoionization of an atom due to a femtosecond pulse is investigated in the framework of the stochastic Schrödinger equation. A modest amount of white noise results in an enhancement of the net ionization yield by several orders of magnitude, giving rise to a form of quantum stochastic resonance.
Singh, K., Rost, J.
openaire   +4 more sources

Chebyshev wavelet-based method for solving various stochastic optimal control problems and its application in finance [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization
In this paper, a computational method based on parameterizing state and control variables is presented for solving Stochastic Optimal Control (SOC) problems.
M. Yarahmadi, S. Yaghobipour
doaj   +1 more source

Optimization with Stochastic Dominance Constraints [PDF]

open access: yesSIAM Journal on Optimization, 2003
The paper refers to a model regarding the investment of a number of capital assets in order to obtain under the random returns of assets some desirable characteristics of the total return on the investment. The model is a stochastic optimization problem involving stochastic dominance constraints.
Darinka Dentcheva, Andrzej Ruszczyński
openaire   +1 more source

The optimality of (stochastic) veto delegation

open access: yesGames and Economic Behavior, 2023
We analyze the optimal delegation problem between a principal and an agent, assuming that the latter has state-independent preferences. We demonstrate that if the principal is more risk-averse than the agent toward non-status quo options, an optimal mechanism is a {\em veto mechanism}. In a veto mechanism, the principal uses veto (i.e., maintaining the
Xiaoxiao Hu, Haoran Lei
openaire   +2 more sources

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