201 search results - page 38 / 41 » Periodicity in Streams |
CVPR
2009
IEEE
15 years 5 months ago
2009
IEEE
We propose a space-time Markov Random Field (MRF)
model to detect abnormal activities in video. The nodes in
the MRF graph correspond to a grid of local regions in the
video fra...
CVPR
1999
IEEE
14 years 12 months ago
1999
IEEE
The task of multi-camera surveillance is to reconstruct the paths taken by all moving objects that are temporarily visible from multiple non-overlapping cameras. We present a Baye...
CHI
2008
ACM
14 years 10 months ago
2008
ACM
We designed an activity-based prototyping process realized in the ActivityDesigner system that combines the theoretical framework of Activity-Centered Design with traditional iter...
SDM
2009
SIAM
14 years 7 months ago
2009
SIAM
Mining sequential movement patterns describing group behaviour in potentially streaming spatio-temporal data sets is a challenging problem. Movements are typically noisy and often...
CHI
2010
ACM
14 years 4 months ago
2010
ACM
Real time search is an increasingly important area of information seeking on the Web. In this research, we analyze 1,005,296 user interactions with a real time search engine over ...