نتایج جستجو برای: scenario simulation
تعداد نتایج: 636334 فیلتر نتایج به سال:
We use stochastic kriging, a metamodeling technique, to speed up nested simulation of expected shortfall, a portfolio risk measure. Evaluating a risk measure of a portfolio that includes derivative securities may require nested Monte Carlo simulation. The outer level simulates financial scenarios and the inner level of simulation estimates the portfolio value given a scenario. Spatial metamodel...
As the rapid-spreading disease COVID-19 occupies world, most governments adopt strict control policies to alleviate impact of virus. These successfully reduced prevalence and delayed epidemic peak, while they are also associated with high economic social costs. To bridge microscopic transmission patterns policies, simulation systems play an important role. In this work, we propose agent-based s...
Using water and fertilizer management at the farm level can be increased water use efficiency and reduce the volume of drainage water, fertilizer losses, and other pollutants in farmland with deep underground drains such as Khuzestan agro-industrial Companies. In the present study, a comprehensive simulation model for the water cycle and the nitrogen dynamics modeling was used for water and fer...
Dam removal is one of the methods of restoring the river ecosystem. In the present study, the removal of the Voshmgir Dam on the Gorganrud River, Iran, was considered, because of the high volume of sediment deposition in the reservoir and the loss of its useful life. Three scenarios were selected for the removal of the dam: 1- complete removal; 2- stepped removal of the spillway; and 3- removal...
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