Title
Machine Learning Applied to Perception: Decision Images for Gender Classification
Abstract
We study gender discrimination of human faces using a combination of psychophysical classification and discrimination exper iments together with methods from machine learning. We reduce the dimensionality of a set of face images using principal component analysis, and then train a set of linear classifiers on this reduced representation (li near support vec- tor machines (SVMs), relevance vector machines (RVMs), Fisher linear discriminant (FLD), and prototype (prot) classifiers) usin g human clas- sification data. Because we combine a linear preprocessor wi th linear classifiers, the entire system acts as a linear classifier, al lowing us to visu- alise the decision-imagecorresponding to the normal vector of the separ- ating hyperplanes (SH) of each classifier. We predict that th e female-to- maleness transition along the normal vector for classifiers closely mim- icking human classification (SVM and RVM (1)) should be faste r than the transition along any other direction. A psychophysical discrimina- tion experiment using the decision images as stimuli is consistent with this prediction.
Year
Venue
Keywords
2004
NIPS
relevance vector machine,principal component analysis,machine learning
Field
DocType
Citations 
Structured support vector machine,Pattern recognition,Random subspace method,Computer science,Support vector machine,Artificial intelligence,Linear discriminant analysis,Relevance vector machine,Margin classifier,Linear classifier,Machine learning,Quadratic classifier
Conference
3
PageRank 
References 
Authors
0.80
5
5
Name
Order
Citations
PageRank
F A Wichmann123117.54
Arnulf Graf21459.85
Eero P Simoncelli31485168.07
Heinrich H. Bülthoff42524384.40
Bernhard Schölkopf5231203091.82