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SSIAI
2000
IEEE
15 years 6 months ago
Using Moment Invariants and HMM in Facial Expression Recognition
Moment invariants are invariant under shifting, scaling and rotation. They are widely used in pattern recognition because of their discrimination power and robustness. HMM method ...
Y. Zhu, Liyanage C. De Silva, Chi Chung Ko
ICASSP
2011
IEEE
14 years 6 months ago
Facial expression recognition using ensemble of classifiers
This paper presents a novel method for facial expression classification that employs the combination of two different feature sets in an ensemble approach. A pool of base classi...
Thiago H. H. Zavaschi, Alessandro L. Koerich, Luiz...
CSCW
2012
ACM
13 years 10 months ago
Of joy and gender: emotional expression in online social networks
In this study, we analyzed the language use on Twitter personal exchanges as well as properties of the users’ networks, to study the influence of gender composition on expressio...
Funda Kivran-Swaine, Samuel Brody, Nicholas Diakop...
CORR
2009
Springer
99views Education» more  CORR 2009»
15 years 7 days ago
Quotient Complexity of Regular Languages
The past research on the state complexity of operations on regular languages is examined, and a new approach based on an old method (derivatives of regular expressions) is presente...
Janusz A. Brzozowski
ECCV
2008
Springer
16 years 4 months ago
Output Regularized Metric Learning with Side Information
Distance metric learning has been widely investigated in machine learning and information retrieval. In this paper, we study a particular content-based image retrieval application ...
Wei Liu, Steven C. H. Hoi, Jianzhuang Liu