150 search results - page 19 / 30 » Optimization with EM and Expectation-Conjugate-Gradient |
CVPR
2010
IEEE
14 years 3 months ago
2010
IEEE
Due to the lack of explicit spatial consideration, existing
epitome model may fail for image recognition and target detection,
which directly motivates us to propose the so-calle...
CVPR
2012
IEEE
11 years 10 months ago
2012
IEEE
Bottom-up, fully unsupervised segmentation remains a daunting challenge for computer vision. In the cosegmentation context, on the other hand, the availability of multiple images ...
CVPR
2012
IEEE
11 years 10 months ago
2012
IEEE
We study unsupervised learning of occluding objects in images of visual scenes. The derived learning algorithm is based on a probabilistic generative model which parameterizes obj...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
In this paper, we propose a novel unsupervised approach to query segmentation, an important task in Web search. We use a generative query model to recover a query's underlyin...
ICPR
2008
IEEE
14 years 9 months ago
2008
IEEE
Considering the statistical text classification problem we approximate class-conditional probability distributions by structurally modified Poisson mixtures. By introducing the st...