基于改进投影寻踪的海洋生态环境综合评价

Comprehensive assessment of marine ecological indexes based on improved projection pursuit method

为了克服现有的海洋环境评价中存在的主观性强、不易处理高维数据的缺陷,提出了基于改进投影寻踪模型的海洋环境评价新方法。该方法利用改进蚁群算法实现了投影寻踪技术,将方案的多维评价指标值投影为一维投影数据,并据投影值大小对样本进行综合评价。工程应用实例表明,该模型易于决策,具有很强的客观性、适用性和可操作性,为海洋生态环境评价提供了新的技术工具。

To overcome the shortcomings of the marine ecological indexes comprehensive assessment methods used today,an improved projection pursuit（PP） model based on an adaptive ant colony algorithm was presented.The improved ant colony algorithm was employed to realize the projection pursuit.And the values of the evaluation index were synthesized into an one-demension projection value which was used to finish the assessment.Engineering practice shows that the method can realize the assessment simply,objectively and feasibly.This work has significance for the marine ecological indexes comprehensive assessment.