272 search results - page 26 / 55 » Unsupervised Outlier Detection in Time Series Data |
AAAI
2007
13 years 9 months ago
2007
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...
CLEF
2011
Springer
12 years 7 months ago
2011
Springer
Abstract In this paper, we describe a novel approach to intrinsic plagiarism detection. Each suspicious document is divided into a series of consecutive, potentially overlapping â€...
BMCBI
2007
13 years 7 months ago
2007
Background: In practice many biological time series measurements, including gene microarrays, are conducted at time points that seem to be interesting in the biologist's opin...
KDD
2007
ACM
14 years 7 months ago
2007
ACM
We consider the problem of detecting anomalies in high arity categorical datasets. In most applications, anomalies are defined as data points that are 'abnormal'. Quite ...
CSDA
2010
13 years 7 months ago
2010
In empirical work on multivariate financial time series, it is common to postulate a Multivariate GARCH model. We show that the popular Gaussian quasi-maximum likelihood estimator...