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Binary sequences with good autocorrelation have many applications in raging systems, spread spectrum communication systems, multi-terminal system identification, code division multiple access communications systems, and stream ciphers. Magma is a large, well-supported software package designed for computations in algebra, number theory, algebraic geometry and algebraic combinatory. We design the system...
With the advantages of high spectrum resolution, the study on the accurate and effective extraction of the soil hydrocarbon micro-seepage information based on the hypercpectral data has an extremely extensive application prospect, such as be used as an important basis for carrying on the oil-gas prospect evaluation. Both of hydrocarbon index method and spectrum angle match (SAM) method are adopted...
Regional economic data are mainly from statistical data. The traditional statistical data are documents of WORD or Excel. The data structure with non-hierarchical brings a lot of inconvenience to the analysis and research. In this paper, the regional economic data analysis and mining platform based on On-Line Analytical Mining (OLAM) has been studied, which provides a more convenient and efficient...
Based on information theoretic approach and projection pursuit approach, Hyva??rinen and Oja have introduced a family of novel contrast functions for independent component analysis (ICA) and proposed a Fast-ICA algorithm. Fast-ICA algorithm converges fast but it is not robust for colored sources such as biomedical signals. By optimizing Fast-ICA's contrast function, and applying natural Riemannian...
Most existing cloaking techniques only focus on achieving location k-anonymity. However, maintaining location k-anonymity alone is not enough to counter query homogeneity attacks. In this paper, we first define the query l-diversity concept in location-based services, and then propose a technique to achieve query l-diversity. The proposed technique is compared with the improved Interval Cloak technique...
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