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篇目详细内容

【篇名】 Optimized extreme learning machine for urban land cover classification using hyperspectral imagery
【刊名】 Frontiers of Earth Science
【刊名缩写】 Front. Earth Sci.
【ISSN】 2095-0195
【EISSN】 2095-0209
【DOI】 10.1007/s11707-016-0603-2
【出版社】
【出版年】 2017
【卷期】 11 卷4期
【页码】 765-773 页,共 9 页
【作者】 Hongjun SU; Shufang TIAN; Yue CAI; Yehua SHENG; Chen CHEN; Maryam NAJAFIAN;
【关键词】 extreme learning machine|firefly algorithm|parameters optimization|hyperspectral image classification

【摘要】

This work presents a new urban land cover classification framework using the firefly algorithm (FA) optimized extreme learning machine (ELM). FA is adopted to optimize the regularization coefficientC and Gaussian kernel s for kernel ELM. Additionally, effectiveness of spectral features derived from an FA-based band selection algorithm is studied for the proposed classification task. Three sets of hyperspectral databases were recorded using different sensors, namely HYDICE, HyMap, and AVIRIS. Our study shows that the proposed method outperforms traditional classification algorithms such as SVM and reduces computational cost significantly.

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