664 search results - page 22 / 133 » Unsupervised Category Modeling, Recognition, and Segmentatio... |
CVPR
2003
IEEE
14 years 10 months ago
2003
IEEE
We present a method to learn and recognize object class models from unlabeled and unsegmented cluttered scenes in a scale invariant manner. Objects are modeled as flexible constel...
WWW
2008
ACM
14 years 9 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...
WACV
2005
IEEE
14 years 2 months ago
2005
IEEE
A number of recent systems for unsupervised featurebased learning of object models take advantage of cooccurrence: broadly, they search for clusters of discriminative features tha...
ICML
2005
IEEE
14 years 9 months ago
2005
IEEE
How to assign appropriate weights to terms is one of the critical issues in information retrieval. Many term weighting schemes are unsupervised. They are either based on the empir...
WWW
2011
ACM
13 years 3 months ago
2011
ACM
We introduce an unsupervised query segmentation scheme that uses query logs as the only resource and can effectively capture the structural units in queries. We believe that Web s...