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A local-knowledge method for masquerade detection that uses a Non-negative Matrix Factorization (NMF) algorithm is here proposed. This method does not consider training data from other users to build a specific user profile but his own. It is used a normalization phase that helps improve a previous NMF-based method by Wang et.al. Comparisons with other(More)
Earlier research at the Navy Personnel Research and Development Center revealed that measures of the brain response to sensory stimuli, known as Event Related Potentials (ERP) may be used to assess unique process-related variance that is dependent upon human performance. For example, it was found that the sensitivity of individual subjects to dynamic color(More)
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