Results 31 to 40 of about 8,393,375 (379)

Investor’s portfolio decision: perspective of parameter uncertainty

open access: yesSystems Science & Control Engineering, 2020
During the process of portfolio decision, the investor usually assumes that the distribution of asset return is known in order to identify the optimal investment strategy.
Bei Tu, Chaolin He
doaj   +1 more source

Modeling the Dynamics of Multispecies Fisheries: A Case Study in the Coastal Water of North Yellow Sea, China

open access: yesFrontiers in Marine Science, 2020
Ecosystem models have been developed for detecting community responses to fishing pressure and have been widely applied to predict the ecological effects of fisheries management.
Jia Wo   +6 more
doaj   +1 more source

Parameter estimation and uncertainty analysis in hydrological modeling

open access: yesWIREs Water, 2021
Nowadays, mathematical models of hydrological systems are used routinely to guide decision making in diverse subjects, such as: environmental and risk assessments, design of remediation strategies for contaminated sites, and evaluation of the impact of ...
P. Herrera, M. A. Marazuela, T. Hofmann
semanticscholar   +1 more source

Robust Adaptive Control for Uncertain Input Delay MIMO Nonlinear Non-Minimum Phase System: A Fuzzy Approach

open access: yesIEEE Access, 2020
In this paper, the robust controller design problem of uncertain multi-input multi-output nonlinear non-minimum phase system is discussed. The nonlinear system is suffering from both uncertainty and input delay, so the controller design is difficult. The
Zhiguo Liu   +3 more
doaj   +1 more source

Projection Pursuit Multivariate Sampling of Parameter Uncertainty

open access: yesApplied Sciences, 2022
The efficiency of sampling is a critical concern in Monte Carlo analysis, which is frequently used to assess the effect of the uncertainty of the input variables on the uncertainty of the model outputs.
Oktay Erten   +2 more
doaj   +1 more source

Affine processes under parameter uncertainty [PDF]

open access: yesProbability, Uncertainty and Quantitative Risk, 2018
We develop a one-dimensional notion of affine processes under parameter uncertainty, which we call nonlinear affine processes. This is done as follows: given a set Θ of parameters for the process, we construct a corresponding nonlinear expectation on the
T. Fadina   +2 more
semanticscholar   +1 more source

Sensitivity and identifiability analysis of a conceptual-lumped model in the headwaters of the Benue River Basin, Cameroon: implications for uncertainty quantification and parameter optimization

open access: yesHydrology Research, 2023
Many hydrological applications employ conceptual-lumped models to support water resource management techniques. This study aims to evaluate the workability of applying a daily time-step conceptual-lumped model, HYdrological MODel (HYMOD), to the ...
Rodric Mérimé Nonki   +4 more
doaj   +1 more source

Optimization under Connected Uncertainty [PDF]

open access: yesINFORMS Journal on Optimization (2022), 2022
Robust optimization methods have shown practical advantages in a wide range of decision-making applications under uncertainty. Recently, their efficacy has been extended to multi-period settings. Current approaches model uncertainty either independent of the past or in an implicit fashion by budgeting the aggregate uncertainty.
arxiv   +1 more source

Dakota A Multilevel Parallel Object-Oriented Framework for Design Optimization Parameter Estimation Uncertainty Quantification and Sensitivity Analysis: Version 6.14 Theory Manual.

open access: yes, 2020
The Dakota (Design Analysis Kit for Optimization and Terascale Applications) toolkit provides a flexible and extensible interface between simulation codes and iterative analysis methods.
Brian M. Adams   +13 more
semanticscholar   +1 more source

Valuation of Non-Life Liabilities from Claims Triangles

open access: yesRisks, 2017
This paper provides a complete program for the valuation of aggregate non-life insurance liability cash flows based on claims triangle data. The valuation is fully consistent with the principle of valuation by considering the costs associated with a ...
Mathias Lindholm   +2 more
doaj   +1 more source

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