考虑招标人对评标因素风险态度的施工项目评标模型

Construction Project Bidding Evaluation Model by Integrating Risk Preference of Tenderee

基于传统期望效用理论的综合评标模型难以考虑招标人对评标因素的风险态度,而这种风险态度会直接影响最终的评标结果。利用前景理论考虑招标人面临"收益"和"损失"时采用不同价值函数的特点,并与灰色理论结合,本文构建了一种新的施工项目综合评标模型。利用奖优罚劣的线性变换算子规范化各投标人的原始信息,寻求评标决策的正、负理想方案。根据累积前景理论和灰色关联度理论定义综合价值函数,建立最大化价值函数优化模型,求解最优权重向量,最终根据价值函数值大小对投标人进行排序。通过施工项目的投标案例应用说明了该模型的有效性。

A majority of construction project bidding evaluation models based on the expected utility theory seldom consider the risk preference of tenderee, which may directly affect evaluating result. A model combining prospect theory and multi-attribute gray correlation degree- is proposed with risk preference of tenderee. The linear transformation operator is used to standardized original decision-making information and gets positive and negative ideal schemes. Integrating prospect theory and gray correlation degree, the prospect value function is defined. Optimization model is constructed to find the weight vector of attributes and rank bidders. Finally, The effectiveness of the model is verified via case study.