35 search results - page 2 / 7 » Multivariate Saddle Point Detection for Statistical Clusteri... |
DMIN
2009
13 years 5 months ago
2009
This paper proposes a new method to detect abnormal process state. The method is based on cluster center point monitoring in time and is demonstrated in its application to data fro...
SDM
2008
SIAM
13 years 9 months ago
2008
SIAM
In this paper, we present a measure associated with detection and inference of statistically anomalous clusters of a graph based on the likelihood test of observed and expected ed...
DAGSTUHL
2004
13 years 9 months ago
2004
Abstract. The starting point of this work is the definition of local pattern detection given in [10] as the unsupervised detection of local regions with anomalously high data densi...
PR
2007
13 years 7 months ago
2007
In this paper, an evolutionary clustering technique is described that uses a new point symmetry-based distance measure. The algorithm is therefore able to detect both convex and n...
KDD
2006
ACM
14 years 8 months ago
2006
ACM
Outlier detection can uncover malicious behavior in fields like intrusion detection and fraud analysis. Although there has been a significant amount of work in outlier detection, ...