5692 search results - page 939 / 1139 » Challenges and Unsolved Problems |
190
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PAMI
2010
15 years 25 days ago
2010
We propose a novel approach for activity analysis in multiple synchronized but uncalibrated static camera views. In this paper, we refer to activities as motion patterns of objects...
200
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TMM
2010
15 years 23 days ago
2010
Abstract--Automatic video annotation is a challenging yet important problem for content-based video indexing and retrieval. In most existing works, annotation is formulated as a mu...
310
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IPMI
2011
Springer
14 years 9 months ago
2011
Springer
Tumor segmentation in PET and CT images is notoriously challenging due to the low spatial resolution in PET and low contrast in CT images. In this paper, we proposed a general fram...
198
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SIGIR
2011
ACM
14 years 8 months ago
2011
ACM
A key challenge in recommender system research is how to effectively profile new users, a problem generally known as cold-start recommendation. Recently the idea of progressivel...
209
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DCOSS
2011
Springer
14 years 5 months ago
2011
Springer
—Controlled sink mobility has been shown to be very beneficial in lifetime prolongation of wireless sensor networks (WSNs) by avoiding the typical hot-spot problem near the sink...