272 search results - page 13 / 55 » Unsupervised Outlier Detection in Time Series Data |
IV
2010
IEEE
13 years 5 months ago
2010
IEEE
An important task in exploration of data about phenomena and processes that develop over time is detection of significant changes that happened to the studied phenomenon. Our rese...
MCS
2008
Springer
13 years 7 months ago
2008
Springer
In this paper, we propose a computationally effective approach to detect multiple structural breaks in the mean occurring at unknown dates. We present a non-parametric approach th...
GECCO
2007
Springer
14 years 1 months ago
2007
Springer
Standard detection algorithms for nonlinearity linkage fail when applied to typical problems in the analysis of financial time-series data. We explain how this failure arises whe...
ICDM
2005
IEEE
14 years 29 days ago
2005
IEEE
In this work, we introduce the new problem of finding time series discords. Time series discords are subsequences of a longer time series that are maximally different to all the r...
KDD
2005
ACM
14 years 7 months ago
2005
ACM
Knowledge Discovery in time series usually requires symbolic time series. Many discretization methods that convert numeric time series to symbolic time series ignore the temporal ...