학술논문

Dimensionality reduction for Interval Time Series
Document Type
Conference
Source
2012 World Congress on Information and Communication Technologies Information and Communication Technologies (WICT), 2012 World Congress on. :1115-1120 Oct, 2012
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Time series analysis
Discrete Fourier transforms
Optimization
Vectors
Educational institutions
Linear matrix inequalities
Indexes
time series
interval
dimension reduction
optimization
Language
Abstract
To meet some application's requirement, we introduce a new data type, ITS (Interval Time Series), which is modified based on the widely studied date type-time series, along with a dimension reduction technique to it. The implied idea of our method is derived from the orthogonal transformation. We then present an optimization to it, with which our method can performs much better. Experiments show our method works fine for various dimensionalities and scales of dataset.