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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...
From the angle of customer value and customer behavior, this paper utilizes data mining methods to segment the clients in security industry. Clustering algorithm is a kind of customer segmentation methods commonly used in data mining. In this article, a two-stage integration of K-means clustering algorithm and SOM network is applied to segment customers and finally forms groups of clients with different...
To solve the problem of query-by-example in multimedia audio data, we analyze the characteristics of wavelet multiresolution, wavelet packet transform and it’s best base, and propose a method for searching audio data using wavelet packet best base and wavelet multiresolution pyramidal algorithm. First, we preprocess 100 audio data files by transforming them into best base coefficient and wavelet coefficient...
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