922 search results - page 78 / 185 » Unsupervised detection of contours using a statistical model |
ACL
2012
13 years 8 days ago
2012
Aspect extraction is a central problem in sentiment analysis. Current methods either extract aspects without categorizing them, or extract and categorize them using unsupervised t...
121
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AIPR
2005
IEEE
15 years 3 months ago
2005
IEEE
Most of the available research on face recognition has been performed using gray scale imagery. This paper presents a novel two-pass face recognition system that uses a Multispect...
102
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TMI
2010
14 years 4 months ago
2010
Within-subject analysis in fMRI essentially addresses two problems, the detection of brain regions eliciting evoked activity and the estimation of the underlying dynamics. In [1, 2...
EWSN
2008
Springer
15 years 9 months ago
2008
Springer
In this paper3 , we use Bayesian Networks as a means for unsupervised learning and anomaly (event) detection in gas monitoring sensor networks for underground coal mines. We show t...
ECCV
2006
Springer
15 years 1 months ago
2006
Springer
We present a novel method for the detection of motion boundaries in a video sequence based on differential properties of the spatio-temporal domain. Regarding the video sequence as...