Results 1 to 10 of about 68,699 (263)

An intelligent stochastic optimization approach for air cargo order allocation under carbon emission constraints. [PDF]

open access: yesPLoS ONE
In air cargo transportation, effective order allocation is crucial for improving the efficiency of business operations and reducing environmental impact.
Zhenzhong Zhang   +3 more
doaj   +2 more sources

Stochastic Optimization for an Analytical Model of Saltwater Intrusion in Coastal Aquifers. [PDF]

open access: yesPLoS ONE, 2016
The present study implements a stochastic optimization technique to optimally manage freshwater pumping from coastal aquifers. Our simulations utilize the well-known sharp interface model for saltwater intrusion in coastal aquifers together with its ...
Paris N Stratis   +4 more
doaj   +2 more sources

Randomized Smoothing for Stochastic Optimization [PDF]

open access: yesSIAM Journal on Optimization, 2012
39 pages, 3 ...
Martin J Wainwright, Peter Bartlett
exaly   +5 more sources

Asymptotic optimality in stochastic optimization [PDF]

open access: yesThe Annals of Statistics, 2021
We study local complexity measures for stochastic convex optimization problems, providing a local minimax theory analogous to that of Hájek and Le Cam for classical statistical problems. We give complementary optimality results, developing fully online methods that adaptively achieve optimal convergence guarantees. Our results provide function-specific
Duchi, John C., Ruan, Feng
openaire   +3 more sources

The importance of better models in stochastic optimization [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
John Duchi, Hilal Asi
exaly   +2 more sources

Stochastic polynomial optimization [PDF]

open access: yesOptimization Methods and Software, 2019
This paper studies stochastic optimization problems with polynomials. We propose an optimization model with sample averages and perturbations. The Lasserre type Moment-SOS relaxations are used to solve the sample average optimization. Properties of the optimization and its relaxations are studied. Numerical experiments are presented.
Jiawang Nie, Liu Yang, Suhan Zhong
openaire   +2 more sources

Stochastic Optimization Forests

open access: yesManagement Science, 2023
We study contextual stochastic optimization problems, where we leverage rich auxiliary observations (e.g., product characteristics) to improve decision making with uncertain variables (e.g., demand). We show how to train forest decision policies for this problem by growing trees that choose splits to directly optimize the downstream decision quality ...
Nathan Kallus, Xiaojie Mao
openaire   +2 more sources

Information Loss Due to the Data Reduction of Sample Data from Discrete Distributions

open access: yesData, 2020
In this paper, we study the information lost when a real-valued statistic is used to reduce or summarize sample data from a discrete random variable with a one-dimensional parameter. We compare the probability that a random sample gives a particular data
Maryam Moghimi, Herbert W. Corley
doaj   +1 more source

Numerical simulations for stochastic meme epidemic model

open access: yesAdvances in Difference Equations, 2020
The primary purpose of this study is to perform the comparison of deterministic and stochastic modeling. The effect of threshold number is also observed in this model.
Ali Raza   +3 more
doaj   +1 more source

Design of nonstandard computational method for stochastic susceptible–infected–treated–recovered dynamics of coronavirus model

open access: yesAdvances in Difference Equations, 2020
The current effort is devoted to investigating and exploring the stochastic nonlinear mathematical pandemic model to describe the dynamics of the novel coronavirus.
Wasfi Shatanawi   +5 more
doaj   +1 more source

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