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Wang, Zengmao; Du, Bo; Zhang, Lefei; Zhang, Liangpei . (2016). A batch-mode active learning framework by querying discriminative and representative samples for hyperspectral image classification. Neurocomputing, 179(), 88–100. doi:10.1016/j.neucom.2015.11.062 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research