نتایج جستجو برای: data uncertainty

تعداد نتایج: 2495003  

ژورنال: سلامت و محیط زیست 2018

Background and Objective: The aim of this study was to assess the sensitivity and uncertainty analysis of a mass balance model to estimate the rate of aerobic processes in a landfill. Materials and Methods: Monte Carlo simulation is a common method to evaluate uncertainty of the results of a model. Here, we used a Monte Carlo (MC) simulation. The data obtained from the experiments were used as...

Journal: :American Economic Journal: Macroeconomics 2013

Journal: :Environmental Modelling and Software 2021

Multi-objective spatial optimization problems require data input that can contain uncertainties. Via the validation of constraints and computation objective values this uncertainty propagates to Pareto fronts. Here, we develop a method quantify in fronts by finding extreme lower upper bound range optimal space, i.e. interval. The is demonstrated on land use allocation problem with initial (for ...

This research uses the multilayer perceptron (MLP) model to predict daily evaporation at two synoptic stations located in Rasht and Manjil, Guilan province, in north-west of Iran. Initially the most important combinations of climatic parameters for both of the stations were identified using the gamma test; and daily evaporation were modeled based on the obtained optimal combination. The results...

داوری, کامران, قهرمان, بیژن, نورعلی, مه روز, پوررضا بیلندی, محسن,

There are some parameters in hydrologic models that cannot be measured directly. Estimation of hydrologic model parameters by various approaches and different optimization algorithms are generally error-prone, and therefore, uncertainty analysis is necessary. In this study we used DREAM-ZS, Differential Evolution Adaptive Metropolis, to investigate uncertainties of hydrologic model (HEC-HMS) pa...

2010
Yan Wang

Variability is inherent randomness in systems, whereas incertitude is due to lack of knowledge. In this paper, a generalized hidden Markov model (GHMM) is proposed to quantify aleatory and epistemic uncertainties simultaneously in multiscale system analysis. The GHMM is based on a new imprecise probability theory that has the form of generalized interval. The new interval probability resembles ...

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