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• W2004170666 abstract "Band selection is an important unsolved challenge in hyperspectral image processing that has been used fordimensionality reduction and classification improvement. To date, numerous researchers have investigated theunsupervised selection of band groups using measures such as correlation and Kullback-Leibler divergence. However,no clear winner has emerged across data sets and detection tasks. Herein, we investigate the utility of aggregatingdifferent proximity measures for band group selection. Specifically, we employ the Choquet integral with respect to different measures (capacities) as it is able to yield a variety of aggregation functions like t-norms, t-conorms andaveraging operators. We explore the utility of aggregation in the context of single band, single band group, band groupdimensionality reduction and multiple band group combinations in conjunction with support vector machine (SVM)based classification. Our preliminary experiments indicate there is value in aggregating different proximity measures. In some instances an intersection operator works well while in other cases a union operator is best. As may be expected,this can, and does vary per detection task. We also see that depending on the difficulty of the target detection problem, different aggregation, band grouping and combination strategies prevail. Advantages of our approach include; flexibility,the aggregation operator can be learned, and the method can default to a single proximity measure if needed and result, in the worst case, in no performance loss. Experiments are performed on three hyperspectral benchmark data sets to demonstrate the applicability of the proposed concepts." @default.
• W2004170666 created "2016-06-24" @default.
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• W2004170666 date "2014-06-13" @default.
• W2004170666 modified "2023-09-23" @default.
• W2004170666 title "Hyperspectral band selection based on the aggregation of proximity measures for automated target detection" @default.
• W2004170666 cites W2008997808 @default.
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• W2004170666 doi "https://doi.org/10.1117/12.2050638" @default.
• W2004170666 hasPublicationYear "2014" @default.
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