Data Management

Data Management Support Via Spectrum Perturbation-Based Subspace Classification in Collaborative Environments

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Executive Summary

Data management support to enable effective and efficient information sharing in collaborative environments is critical, especially in semantics based search and retrieval. In this paper, a novel spectrum perturbation-based subspace classification is proposed to mine semantics and other useful information from a large-scale dataset by utilizing a lower-dimensional subspace to discriminate different classes of the dataset. Among the existing subspace-based approaches, the Principal Component (PC) subspace is the most prevailing one and has been well studied.

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