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Long-term vegetation monitoring is important for the assessment of the impacts of mining and reclamation activities in an area like the Antaibao, where extensive and rapid opencast mining occur continuously. Accurate information of vegetation fraction is important for assessing how mining activities affect the ecosystem in mining areas. A remote sensing method based on vegetation cover monitoring...
This paper deals with a study of three methods for health index (HI) extraction in semiconductor manufacturing equipments. The first method uses degradation reconstruction-based identification with basic principal component analysis (PCA), the second one uses multiway PCA and the last one extracts HI from the significant points related to degradation. A comparison of these methods are made discussing...
According to mathematical analysis, using primary components and factor analysis (PCFA) and its advantages, the main function indexes of intrusion detection system in network security are analyzed and assessed. Based on PCFA model and the scores by the experts, the authors computed some results that can reflect some aspects about main function indexes of intrusion detection system in network security...
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