A growing number of applications generates massive streams of data which are on-line collected and potentially unbounded in size. To cope with the high dimensionality of data, several strategies for dimensionality reduction have been proposed. In this paper we introduce a new approach to represent an append only data stream into a reduced space. The main aim is to transform a real valued data stream into a string of symbols. The string includes a level component and a shape component allowing to get a better representation of data while maintaining a strong compression ratio. © 2010 Springer-Verlag Berlin Heidelberg.
CITATION STYLE
Balzanella, A., Irpino, A., & Verde, R. (2010). Dimensionality reduction techniques for streaming time series: A new symbolic approach. In Studies in Classification, Data Analysis, and Knowledge Organization (pp. 381–389). Kluwer Academic Publishers. https://doi.org/10.1007/978-3-642-10745-0_41
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