نتایج جستجو برای: model specification and calibration

تعداد نتایج: 17178098  

2008
Jairus Hihn Karen Lum Tim Menzies Dan Baker Omid Jalali

1 There exists an extensive academic literature on software cost estimation that explores techniques such as boot strapping, assorted analogy methods such as nearest neighbor, and even highly non-linear ‘models’ such as decision trees. However, industry “best practice” virtually ignores the academic literature and continues to rely upon standard regression-based algorithms and most often local ...

Intelligent Driver Model (IDM) is a well-known microscopic model of traffic flow within the traffic engineering societies. While it is a powerful technique for modeling traffic flows, the Intelligent Driver Model lacks the potential of accommodating the notion of drivers’ heterogeneous behavior whenever they are on roads. Concerning the above mentioned, this paper takes the lane to recognize th...

The roots of the madder plant (Rubinia tinctorum) contain some pigments that can be used to produce the red dyes. In order to study the effect of salinity on alterations in the amount of plant pigment an experiment was conducted according to a completely randomized design with three replications. Based on the CIE XYZ color space model designed close to human color vision, the results showed tha...

Journal: :Journal of Chemometrics 2007

ارشادی, سیروس, باباییان, ایمان, مشاری عشق آباد, سمیه, نوحه گر, احمد,

Study on natural processes related to water as well as knowledge about runoff and hydrological conditions is necessary for improvement of water management in Iran. Since most of watersheds in Iran are ungauged, so using hydrologic models to simulate the runoff is inevitable. In this study, continuous distributed hydrologic model WetSpa was used to simulate Zoshk watershed runoff. Three basic ma...

Journal: :نشریه دانشکده فنی 0
علیرضا ارشدی خمسه سیدمحمدتقی فاطمی قمی مجید امین نیری

the paper presents an economical model for double variable acceptance sampling with inspection errors. taguchi cost function is used as acceptance cost while quality specification functions are normal with known variance. an optimization model is developed for double variables acceptance sampling scheme at the presence of inspection errors with either constant or monotone value functions. the m...

Journal: :international journal of environmental research 2012
e.m.m. zahran

the aim of this research paper is the introduction of a novel mathematical approach to improvethe accuracy of the results of air pollution dispersion models based on the calibration of input backgroundconcentrations. using the dunkirk area of the city of nottingham in the uk as a case study, an air pollutionmodel in adms-roads was created for developing the mathematical approach. the iterative ...

2001
Thorsten Wagener Douglas P. Boyle Matthew J. Lees Howard S. Wheater Hoshin V. Gupta Soroosh Sorooshian

Many existing hydrological modelling procedures do not make best use of available information, resulting in non-minimal uncertainties in model structure and parameters, and a lack of detailed information regarding model behaviour. A framework is required that balances the level of model complexity supported by the available data with the level of performance suitable for the desired application...

Today, increase in flood frequency and intensity, and flash flood events have caused environmental issues and increased human and economic losses. As a result, numerous tools and new programs for flood forecasting systems and risk management programs are being used in the relevant period. There are models that make it easy to be used for this purpose. In this research, MISDc model was applied t...

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