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• W2027144818 endingPage "2698" @default.
• W2027144818 startingPage "2682" @default.
• W2027144818 abstract "Plant species identification and mapping based on remotely-sensed spectral signatures is a challenging task with the potential to contribute enormously to ecological studies. Success in this task rests upon the appropriate collection and use of costly field-based training data, and researchers are in need of ways to improve collection efficiency based on quantitative evidence. Using imaging spectrometer data collected by the Carnegie Airborne Observatory for hundreds of field-identified tree crowns in Kruger National Park, South Africa, we developed woody plant species classification models and evaluated how classification accuracy increases with increasing numbers of training crowns. First, we show that classification accuracy must be estimated while respecting the crown as the basic unit of data; otherwise, accuracy will be overestimated and the amount of training data needed to perform successful classification will be underestimated. We found that classification accuracy and the number of training crowns needed to perform successful classification varied depending on the number and spectral separability of species in the model. We also used a modified Michaelis-Menten function to describe the empirical relationship between training crowns and model accuracy, and show how this function may be useful for predicting accuracy. This framework can assist researchers in designing field campaigns to maximize the efficiency of field data collection, and thus the amount of biodiversity information gained from remote species identification models." @default.
• W2027144818 created "2016-06-24" @default.
• W2027144818 creator A5035372982 @default.
• W2027144818 creator A5043689130 @default.
• W2027144818 date "2014-03-25" @default.
• W2027144818 modified "2023-10-16" @default.
• W2027144818 title "Improving Remote Species Identification through Efficient Training Data Collection" @default.
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• W2027144818 doi "https://doi.org/10.3390/rs6042682" @default.
• W2027144818 hasPublicationYear "2014" @default.
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