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» A PCA-based similarity measure for multivariate time series
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ICDE
2006
IEEE
239views Database» more  ICDE 2006»
14 years 28 days ago
Grid Representation for Efficient Similarity Search in Time Series Databases
Widespread interest in time-series similarity search has made more in need of efficient technique, which can reduce dimensionality of the data and then to index it easily using a ...
Guifang Duan, Yu Suzuki, Kyoji Kawagoe
IS
2008
13 years 6 months ago
A dimensionality reduction technique for efficient time series similarity analysis
We propose a dimensionality reduction technique for time series analysis that significantly improves the efficiency and accuracy of similarity searches. In contrast to piecewise c...
Qiang Wang, Vasileios Megalooikonomou
AAAI
2007
13 years 9 months ago
Discovering Multivariate Motifs using Subsequence Density Estimation and Greedy Mixture Learning
The problem of locating motifs in real-valued, multivariate time series data involves the discovery of sets of recurring patterns embedded in the time series. Each set is composed...
David Minnen, Charles Lee Isbell Jr., Irfan A. Ess...
SIGMOD
2007
ACM
186views Database» more  SIGMOD 2007»
14 years 7 months ago
An efficient and accurate method for evaluating time series similarity
A variety of techniques currently exist for measuring the similarity between time series datasets. Of these techniques, the methods whose matching criteria is bounded by a specifi...
Michael D. Morse, Jignesh M. Patel
MICCAI
2002
Springer
14 years 7 months ago
Two-Stage Alignment of fMRI Time Series Using the Experiment Profile to Discard Activation-Related Bias
In this paper, we show that the standard point of view of the neuroimaging community about fMRI time series alignment should be revisited to overcome the bias induced by activation...
Luis Freire, Jean-Francois Mangin