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Current methods that use hyperspectral remote sensing imagery in the detection and extraction of marine oil spills are quite popular. Because the mixed pixels exist broadly in the hyperspectral images, the automatic and accurate end member extraction technology plays most essential role in the hyperspectral unmixing. This paper proposed a data field-spectral preprocessing module prior to end member...
As a science and reasonable method fuzzy synthetic evaluation method can appraise the fit or unfit quality of each investment project accurately. Through constructing the set of factor and evaluation, determines the evaluating index weight and affiliation level grades by expert, constructs fuzzy evaluation model, finally carries on the fuzzy quality synthetic evaluation. The example analysis Indicates:...
In order to evaluating performance of listed companies comprehensively, this paper analyzes multi-index based on projection pursuit, and optimize the weight of financial indicators by Using RAGA (real coding based on accelerating genetic algorithm). This method succeeded in dynamic weighing, makes full use of data, obtains more reasonable and scientific comprehensive performance evaluation.
Normalized difference vegetation index (NDVI) is the most widely used vegetation index due to its simplicity, ease of application, and wide-spread familiarity. Time-series NDVI products have been proven to be a powerful tool to learn from past events, monitor current natural-resource conditions, extract canopy biophysical parameters and forecast terrestrial ecosystems on different scales. However,...
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