Data envelopment analysis (DEA) has become a standard non parametric approach to productivity analysis, especially to relative efficiency analysis of decision making units (DMUs). Extended to the prediction field, it ...Data envelopment analysis (DEA) has become a standard non parametric approach to productivity analysis, especially to relative efficiency analysis of decision making units (DMUs). Extended to the prediction field, it can solve the prediction problem with multiple inputs and outputs which can not be solved easily by the regression analysis method.But the traditional DEA models can not solve the problem with undesirable outputs,so in this paper the inherent relationship between goal programming and the DEA method based on the relationship between multiple goal programming and goal programming is explored,and a mixed DEA model which can make all factors of inputs and undesirable outputs decrease in different proportions is built.And at the same time,all the factors of desirable outputs increase in different proportions.展开更多
In this paper, the author explains the problem that we have to consider multiple goals and multiple factors which are usually affected by others at the same time in practical work for electrical power distribution sys...In this paper, the author explains the problem that we have to consider multiple goals and multiple factors which are usually affected by others at the same time in practical work for electrical power distribution system programming. A new mathematics model is set up here for the multiple goals programming of electrical power distribution system which includes various load control alternatives. An arithmetic and current software for the multi-criteria optimization of electrical power distribution system are given here. The author calculates and analyses the optimal programming projects and the optimal operation strategies for a practical system, which show that the model, the arithmetic and the current software are all correct and effective. The outcome of researches has been adopted by the authoritative persons.展开更多
文摘Data envelopment analysis (DEA) has become a standard non parametric approach to productivity analysis, especially to relative efficiency analysis of decision making units (DMUs). Extended to the prediction field, it can solve the prediction problem with multiple inputs and outputs which can not be solved easily by the regression analysis method.But the traditional DEA models can not solve the problem with undesirable outputs,so in this paper the inherent relationship between goal programming and the DEA method based on the relationship between multiple goal programming and goal programming is explored,and a mixed DEA model which can make all factors of inputs and undesirable outputs decrease in different proportions is built.And at the same time,all the factors of desirable outputs increase in different proportions.
文摘In this paper, the author explains the problem that we have to consider multiple goals and multiple factors which are usually affected by others at the same time in practical work for electrical power distribution system programming. A new mathematics model is set up here for the multiple goals programming of electrical power distribution system which includes various load control alternatives. An arithmetic and current software for the multi-criteria optimization of electrical power distribution system are given here. The author calculates and analyses the optimal programming projects and the optimal operation strategies for a practical system, which show that the model, the arithmetic and the current software are all correct and effective. The outcome of researches has been adopted by the authoritative persons.
