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ICPR
2006
IEEE
14 years 11 months ago
Recognizing Facial Expressions by Tracking Feature Shapes
Reliable facial expression recognition by machine is still a challenging task. We propose a framework to recognise various expressions by tracking facial features. Our method uses...
Atul Kanaujia, Dimitris N. Metaxas
ICML
2004
IEEE
14 years 10 months ago
Boosting margin based distance functions for clustering
The performance of graph based clustering methods critically depends on the quality of the distance function, used to compute similarities between pairs of neighboring nodes. In t...
Tomer Hertz, Aharon Bar-Hillel, Daphna Weinshall
KDD
2009
ACM
178views Data Mining» more  KDD 2009»
14 years 10 months ago
Constrained optimization for validation-guided conditional random field learning
Conditional random fields(CRFs) are a class of undirected graphical models which have been widely used for classifying and labeling sequence data. The training of CRFs is typicall...
Minmin Chen, Yixin Chen, Michael R. Brent, Aaron E...
UC
2009
Springer
14 years 4 months ago
Brain Dynamics Promotes Function
Abstract. Dynamical structure in the brain promotes biological function. Natural scientists look for correlations between measured electrical signals and behavior or mental states....
Carlos Lourenço
PLDI
2006
ACM
14 years 3 months ago
Refactoring programs to secure information flows
Adding a sound information flow security policy to an existing program is a difficult task that requires major analysis of and changes to the program. In this paper we show how ...
Scott F. Smith, Mark Thober