| Abstract
|
<p>A study of the dimensionality of … <p>A study of the dimensionality of the Face Authentication problem using Principal Component Analysis (PCA) and a novel dimensionality reduction algorithm that we call Support Vector Features (SVFs) is presented. Starting from a Gabor feature space, we show that PCA and SVFs identify distinct subspaces with comparable authentication and generalisation performance. Experiments using KNN classifiers and Support Vector Machines (SVMs) on these reduced feature spaces show that the dimensionality at which saturation of the authentication performance is achieved heavily depends on the choice of the classifier. In particular, SVMs involve directions in feature space that carry little variance and therefore appear to be vulnerable to excessive PCA-based compression.</p>excessive PCA-based compression.</p>
|
| Author
|
Fabrizio Smeraldi +
, Josef Bigun +
, Wulfram Gerstner +
|
| Conference
|
First international workshop, SVM 2002, Niagara Falls, Canada, August 10, 2002
|
| Diva
|
http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:408410
|
| EndPage
|
259 +
|
| HostPublication
|
Pattern recognition with support vector machines +
|
| PublicationType
|
Conference Paper +
|
| Publisher
|
Springer +
|
| Series
|
Lecture notes in computer science ; 2388 +
|
| StartPage
|
249 +
|
| Title
|
Support vector features and the role of dimensionality in face authentication +
|
| Volume
|
LNCS-2388 +
|
| Year
|
2002 +
|
| Has queryThis property is a special property in this wiki.
|
Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
, Publications:Support vector features and the role of dimensionality in face authentication +
|
| Categories |
Publication +
|
| Modification dateThis property is a special property in this wiki.
|
30 September 2016 20:39:49 +
|
