Abstract
A key problem often encountered by many learning algorithms in computer vision dealing with high dimensional data is the so called "curse of dimensionality" which arises when the available training samples are less than the input feature space dimensionality. To remedy this problem, we propose a joint dimensionality reduction and classification framework by formulating an optimization problem within the maximum margin class separation task. The proposed optimization problem is solved using alternative optimization where we jointly compute the low dimensional maximum margin projections and the separating hyperplanes in the projection subspace. Moreover, in order to reduce the computational cost of the developed optimization algorithm we incorporate orthogonality constraints on the derived projection bases and show that the resulting combined model is an alternation between identifying the optimal separating hyperplanes and performing a linear discriminant analysis on the support vectors. Experiments on face, facial expression and object recognition validate the effectiveness of the proposed method against state-of-the-art dimensionality reduction algorithms.
Original language | Undefined |
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Title of host publication | Proceedings of IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2014 |
Place of Publication | USA |
Publisher | IEEE |
Pages | 1067-1074 |
Number of pages | 8 |
ISBN (Print) | 978-1-4799-5117-8 |
DOIs | |
Publication status | Published - Jun 2014 |
Event | 27th IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2014 - Columbus, OH, USA, Columbus, United States Duration: 23 Jun 2014 → 28 Jun 2014 Conference number: 27 |
Publication series
Name | |
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Publisher | IEEE Computer Society |
ISSN (Print) | 1063-6919 |
Conference
Conference | 27th IEEE Conference on Computer Vision and Pattern Recognition, CVPR 2014 |
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Abbreviated title | CVPR 2014 |
Country/Territory | United States |
City | Columbus |
Period | 23/06/14 → 28/06/14 |
Other | 23-28 June 2014 |
Keywords
- HMI-HF: Human Factors
- IR-95224
- METIS-309943
- EWI-25817