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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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人工林胡桃楸幼龄期与成熟期界定方法的比较
DOI: 10.3969/j.issn.1000-2006.2013.03.019, PP. 103-109
Keywords: 胡桃楸,成熟期,支持向量机,bp神经网络,主成分聚类,有序聚类
Abstract:
为了确定人工林胡桃楸的成熟期,以其年轮间的径向解剖性质为研究对象,采用有序聚类最优分割法、主成分聚类法、bp神经网络和支持向量机(svm)4种分类方法分别进行界定。研究结果表明:可以采用主成分聚类、bp神经网络与支持向量机分类方法界定人工林胡桃楸的生长期,其分类结果与采用有序聚类最优分割法界定的年限差值为0～3a;人工林胡桃楸的过渡期与成熟期可以进行有效界定,但对幼龄期与过渡期的划分结果很难确定为一个精准的数值。通过比较分析,支持向量机为界定人工林胡桃楸幼龄期与成熟期的最佳方法。
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