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Theses/Dissertations

Wayne State University Dissertations

2012

Abnormal event detection, Big data analytics, clustering, evolutionary clustering, large-scale data analysis, low-rank matrix approximation

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Complex Data Analytics Via Sparse, Low-Rank Matrix Approximation, Lijun Wang Jan 2012

Complex Data Analytics Via Sparse, Low-Rank Matrix Approximation, Lijun Wang

Wayne State University Dissertations

Today, digital data is accumulated at a faster than ever speed in science, engineering, biomedicine, and real-world sensing. Data mining provides us an effective way for the exploration and analysis of hidden patterns from these data for a broad spectrum of applications. Usually, these datasets share one prominent characteristic: tremendous in size with tens of thousands of objects and features. In addition, data is not only collected over a period of time, but the relationship between data points can change over that period too. Besides, knowledge is very sparsely encoded because the patterns are usually active only in a local …