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• W2890113322 abstract "The purposes of the algorithm presented in this paper are to select features with the highest average separability by using the random forest method to distinguish categories that are easy to distinguish and to select the most divisible features from the most difficult categories using the weighted entropy algorithm. The framework is composed of five parts:<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mo stretchy=false>(</mml:mo><mml:mn fontstyle=italic>1</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>random samples selection with<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M2><mml:mo stretchy=false>(</mml:mo><mml:mn fontstyle=italic>2</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>probabilistic output initial random forest classification processing based on the number of votes;<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M3><mml:mo stretchy=false>(</mml:mo><mml:mn fontstyle=italic>3</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>semisupervised classification, which is an improvement of the supervision classification of random forest based on the weighted entropy algorithm;<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M4><mml:mo stretchy=false>(</mml:mo><mml:mn fontstyle=italic>4</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>precision evaluation; and<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M5><mml:mo stretchy=false>(</mml:mo><mml:mn fontstyle=italic>5</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>a comparison with the traditional minimum distance classification and the support vector machine (SVM) classification. In order to verify the universality of the proposed algorithm, two different data sources are tested, which are AVIRIS and Hyperion data. The results show that the overall classification accuracy of AVIRIS data is up to 87.36%, the kappa coefficient is up to 0.8591, and the classification time is 22.72s. Hyperion data is up to 99.17%, the kappa coefficient is up to 0.9904, and the classification time is 8.16s. Classification accuracy is obviously improved and efficiency is greatly improved, compared with the minimum distance and the SVM classifier and the CART classifier." @default.
• W2890113322 created "2018-09-27" @default.
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• W2890113322 date "2018-09-04" @default.
• W2890113322 modified "2023-10-17" @default.
• W2890113322 title "A New Semisupervised-Entropy Framework of Hyperspectral Image Classification Based on Random Forest" @default.
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• W2890113322 doi "https://doi.org/10.1155/2018/3521720" @default.
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