نتایج جستجو برای: empirical hybrid model
تعداد نتایج: 2397988 فیلتر نتایج به سال:
computational intelligence approaches have gradually established themselves as a popular tool for forecasting the complicated financial markets. forecasting accuracy is one of the most important features of forecasting models; hence, never has research directed at improving upon the effectiveness of time series models stopped. nowadays, despite the numerous time series forecasting models propos...
optimal use of water resources is essential to decrease cost and maximize available water resources. subsurface drip irrigation can increase irrigation and water use efficiency. this irrigation method distributes water into the soil, leaving the surface of the soil dry and decreasing evaporation. in the design of subsurface drip irrigation (sdi) systems, the dimensions of the wetted onion deter...
We study a hybrid mechanism that combines auction and lottery to allocate indivisible goods. One advantage of hybrid mechanism is to balance e ciency, revenue, and equality. In this model, players self-select into a multi-unit auction with unknown number of bidders. We characterize one symmetric Bayesian Nash equilibrium where auction participants use a monotone bid function. Based on this equi...
The efficiency measurement is a subject of great interest. The majority of studies on DEA models have been carried out using radial or non-radial approaches regarding the application of DEA for the efficiency measurement. This paper, based on the directional distance function, proposes a new generalized hybrid measure of efficiency under generalized returns to scale with the existence of both r...
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
conclusions islam has a unique perspective on spiritual health as it encompasses all aspects of human beings. thus, it is necessary to carefully study the difference between the islamic concept of spiritual health and that of other religions and ideologies to design suitable and useful nursing care for iranian patients that satisfy their spiritual needs. results the relevant literature in the t...
the efficiency measurement is a subject of great interest. the majority of studies on dea models have been carried out using radial or non-radial approaches regarding the application of dea for the efficiency measurement. this paper, based on the directional distance function, proposes a new generalized hybrid measure of efficiency under generalized returns to scale with the existence of both r...
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