基于参数投影寻踪模型的三江平原土壤质量变化评价 |
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引用本文: | 韩军利,王岩,张焕昭,付强. 基于参数投影寻踪模型的三江平原土壤质量变化评价[J]. 黑龙江水专学报, 2003, 30(1): 19-22 |
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作者姓名: | 韩军利 王岩 张焕昭 付强 |
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作者单位: | 1. 黑龙江农垦水利工程建设监理咨询有限公司,哈尔滨,150090 2. 黑龙江省青龙山农场,水务局,黑龙江,同江,156333 3. 东北农业大学水利与建筑学院,黑龙江,哈尔滨,150030 |
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摘 要: | 将投影寻踪评价模型(PPE)应用到土壤质量变化评价中,利用改进的加速遗传算法(RAGA)优化投影方向(湿地土壤评价指标),将多维数据指标转换到低维子空间,通过寻求最优投影方向及投影函数值来实现对土壤的分类与质量变化评价,避免了主观赋权的人为干扰,取得了较好效果,为土壤质量变化与等级评价研究提供一条新思路与方法。
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关 键 词: | RAGA PPE 湿地土壤 质量变化 评价 |
文章编号: | 1000-9833(2003)01-0019-04 |
修稿时间: | 2002-12-19 |
Study on evaluating the soil quality variation of Sanjiang Plain based on PPE model |
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Abstract: | The paper has used a new technical falling dimension named projection pursuit to soil study, through using the improved real coding based accelerating genetic algorithm to optimize the projection direction. Thus, it can transfer multi_dimension data into one dimension data, through searching for the optimum projection direction to realize the soil classification and its grade evaluation. The method can avoid the artificial disturb and acquire preferably effect. The paper provides a new method to the research of soil classification and grade evaluation. |
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Keywords: | RAGA PPE wetland soil quality variation evaluation |
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