272 search results - page 12 / 55 » Unsupervised Outlier Detection in Time Series Data |
VLDB
2007
ACM
14 years 7 months ago
2007
ACM
Market analysis is a representative data analysis process with many applications. In such an analysis, critical numerical measures, such as profit and sales, fluctuate over time a...
FSKD
2005
Springer
14 years 27 days ago
2005
Springer
Discovery of interesting or frequently appearing time series patterns is one of the important tasks in various time series data mining applications. However, recent research critic...
ICML
2009
IEEE
14 years 8 months ago
2009
IEEE
We propose a method that detects the true direction of time series, by fitting an autoregressive moving average model to the data. Whenever the noise is independent of the previou...
ISPA
2007
Springer
14 years 1 months ago
2007
Springer
—Recently, wireless sensor networks have been proposed for assisted living and residential monitoring. In such networks, physiological sensors are used to monitor vital signs e.g...
CSDA
2008
13 years 7 months ago
2008
A computationally fast procedure for identifying outliers is presented, that is particularly effective in high dimensions. This algorithm utilizes simple properties of principal c...