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116
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ICDM
2007
IEEE
15 years 6 months ago
2007
IEEE
Real-world social networks are often hierarchical, reflecting the fact that some communities are composed of a few smaller, sub-communities. This paper describes a hierarchical B...
121
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ICIP
2007
IEEE
15 years 6 months ago
2007
IEEE
In this paper, we propose a system identification approach for group activity recognition in traffic surveillance. Statistical shape theory is used to extract features, and then...
115
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ICIP
2007
IEEE
15 years 6 months ago
2007
IEEE
Image matting and segmentation, which are used to extract a foreground object from the background, are primary techniques for digital image and video editing. In digital matting, ...
ICMCS
2007
IEEE
15 years 6 months ago
2007
IEEE
In this paper, we study the security of an image scrambling algorithm based on Space-Filling Curves (SFC). A random SFC is a pixel permutation that changes the scanning order with...
ICMCS
2007
IEEE
15 years 6 months ago
2007
IEEE
In this paper, we present a framework to analyze and summarize the temporal dynamics within personal blogs. Blog temporal dynamics are difficult to capture using a few class descr...