研究论文

  • 金菊良,魏一鸣,丁晶.水质综合评价的投影寻踪模型[J].环境科学学报,2001,21(4):431-434

  • 水质综合评价的投影寻踪模型
  • Projection pursuit model for comprehensive evaluation of water quality
  • 基金项目:国家自然科学基金项目(49871018);国家自然科学基金;长江水利委员会联合资助项目(50099620)
  • 作者
  • 单位
  • 金菊良
  • 合肥工业大学土建学院,合肥 230009
  • 魏一鸣
  • 中科院科技政策与管理科学所,北京 100080
  • 丁晶
  • 四川大学,成都610065
  • 摘要:为检验水质评价标准的合理性,解决各单项水质指标评价结果的不相容问题,提高水质评价模型的分辨率,提出了一种新的模型---投影寻踪模型,它的评价结果是实数值.实例的计算结果说明,该方案是有效的和通用的,可应用于各种环境质量综合评价中.
  • Abstract:In order to test the evaluation criterions of water quality,to resolve the nonuniformity problem of evaluation results of water quality indexes,and to raise the resolution of water quality comprehensive evaluation,a new model projection pursuit(PP)model is suggested,where the evaluation results are real numbers.A scheme of PP modeling is also presented to reduce the computational amount,a new function of projection indexes is given,and it is suggested that both the function of projection indexes and the parameters of PP model can be optimized by using real coding based genetic algorithm.The calculation example shows that the scheme is effective and general,which can be applied to comprehensive evaluation of other environmental quality.

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