粒子群最小二乘支持向量机在GPS高程拟合中的应用

Science of Surveying and Mapping(2010)

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Abstract
针对传统的GPS高程拟合方法要求有足够多样本数据的缺陷,本文采用粒子群(PSO)算法优化最小二乘支持向量机(LSSVM)参数的方法进行GPS高程拟合。实验表明,在有限样本的情况下,PSO-LSS-VM模型不仅发挥了LSSVM处理小样本数据的能力,而且通过PSO优化后的LSSVM能够选择出合适的参数;与LM-BP神经网络、标准最小二乘支持向量机等方法比较,PSO-LSSVM模型拟合精度较高。
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Key words
abnormal height,particle swarm optimization(PSO) algorithm,LSSVM,GPS elevation fitting
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