13 search results - page 1 / 3 » Robust changepoint detection based on multivariate rank stat... |
ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
We introduce a novel statistical test for unsupervised detection of changepoints in multidimensional sequences of temporal observations. The test statistic is based on a multivari...
SDM
2009
SIAM
14 years 2 months ago
2009
SIAM
An established method to detect concept drift in data streams is to perform statistical hypothesis testing on the multivariate data in the stream. Statistical decision theory off...
VLDB
2007
ACM
13 years 11 months ago
2007
ACM
Real-world datasets exhibit a complex dependency structure among the data attributes. Learning this structure is a key task in automatic statistics configuration for query optimi...
INFOCOM
2009
IEEE
13 years 11 months ago
2009
IEEE
—Detecting event frontline or boundary sensors in a complex sensor network environment is one of the critical problems for sensor network applications. In this paper, we propose ...
CSDA
2007
13 years 4 months ago
2007
Abstract: Abrupt shifts in the level of a time series represent important information and should be preserved in statistical signal extraction. We investigate rules for detecting l...