关键词: 资金预算问题, 净现值（NPV）模型, 模糊VaR方法, 逼近方法, 混合智能算法

Abstract: Based on credibility theory, this paper establishes a class of NPV model with fuzzy VaR method and designs hybrid intelligent algorithm, which contains approximation approach, neuron network and genetic algorithm, to solve the proposed model. A numerical example is presented to illustrate the effectiveness of the model and algorithm. The sensitivity analysis of optimal solution will be done through changing the credibility level of the objective function and credibility constraint.

Key words: capital budgeting problem, Net Present Value（NPV） model, fuzzy VaR method, approximation approach, hybrid intelligent algorithm