71 search results - page 12 / 15 » A risk minimization framework for information retrieval |
ICIP
2009
IEEE
2009
IEEE
Localized Null Space Representation For Dynamic Updating And Downdating In Image And Video Databases
14 years 8 months ago
Event/object classification and recognition is an extremely challenging problem, particularly when the query or stored data undergo an affine transformation due to camera motion. ...
CVPR
2010
IEEE
14 years 3 months ago
2010
IEEE
We propose a visual event recognition framework for consumer domain videos by leveraging a large amount of loosely labeled web videos (e.g., from YouTube). First, we propose a new...
WWW
2008
ACM
14 years 8 months ago
2008
ACM
We consider the problem of segmenting a webpage into visually and semantically cohesive pieces. Our approach is based on formulating an appropriate optimization problem on weighte...
GIS
2009
ACM
14 years 2 months ago
2009
ACM
In this paper, we formalize the novel concept of Constrained Reverse k-Nearest Neighbor (CRkNN) search on mobile objects (clients) performed at a central server. The CRkNN query c...
WWW
2009
ACM
14 years 8 months ago
2009
ACM
Web archives preserve the history of Web sites and have high long-term value for media and business analysts. Such archives are maintained by periodically re-crawling entire Web s...