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language

Cryptanalysis of an encryption scheme for binary images

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In 1998, Chung and Chang proposed a new method to encrypt binary images. When compared to its predecessors, their method can actually obtain better compression ratio by putting different scan patterns at the same level in the scan tree structure and using

language

On the use of Bernoulli mixture models for text classification

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Mixture modelling of class-conditional densities is a standard pattern recognition technique. Although most research on mixture models has concentrated on mixtures for continuous data, emerging pattern recognition applications demand extending research ef