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作 者:赵国[1] ZHAO Guo(College of Computer Science and Technology,Southwest Minzu University,Chengdu 610041,China)
机构地区:[1]西南民族大学计算机科学与技术学院,成都610041
出 处:《四川理工学院学报(自然科学版)》2018年第6期75-80,共6页Journal of Sichuan University of Science & Engineering(Natural Science Edition)
摘 要:电子评标算法是整个电子招标系统的核心所在,其安全性能直接关系到评标结果的公平和公正,鉴于此,对基于价格构成要素的偏差率加权平均的电子评标算法的安全性进行分析。研究表明,基于偏差率加权平均的最低评标价算法,其线性结构导致严重安全隐患。在该算法参数已知条件下,投标人可以私下串通报价,从而影响招标文件中所有清单项的价格构成要素的基准值,进而控制指定标书的偏差率。根据大数定律并结合研究结果,发现小部分(理论阈值约为20%)投标人采用串通投标报价的欺骗策略,就能大概率地使指定标书偏差率达到理论最小值,从而成为中标候选人。研究结果将有助于确保招标投标各方的合法权益。The electronic bid evaluation algorithm is the core of the whole electronic bidding system,and its security performance is directly related to the fairness and fairness of the bid evaluation results.In view of this,the security of the electronic bid evaluation algorithm based on the weighted average deviation rate of price components.The research shows that the linear structure of the lowest evaluation price algorithm based on the weighted average of the deviation rate leads to serious hidden trouble.Under the condition that the parameters of the algorithm are known,the bidder can collude with each other in order to influence the benchmark value of the price components of all the list items in the tender document,and then controlling the deviation rate of the specified bid document.According to the law of large numbers and the research results,it is found that a small number of bidders(the theoretical threshold is about 20%)adopt the cheating strategy of collusive bidding quotation,and by this means,it is possible to make the specified bid have minimum theoretical deviation and become a successful candidate.The results of the study will help to ensure the legitimate rights and interests of the bidding parties.
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