Title
Insights from Machine Learning Applied to Human Visual Classification
Abstract
We attempt to understand visual classification in humans using both psychophysical and machine learning techniques. Frontal views of human faces were used for a gender classification task. Human subjects classified the faces and their gender judgment, reaction time and confidence rating were recorded. Several hyperplane learning algorithms were used on the same classification task using the Principal Components of the texture and shape representation of the faces. The classification performance of the learning algorithms was estimated using the face database with the true gender of the faces as labels, and also with the gender estimated by the subjects. We then correlated the human responses to the distance of the stimuli to the separating hyperplane of the learning algorithms. Our results suggest that human classification can be modeled by some hyperplane algorithms in the feature space we used. For classification, the brain needs more processing for stimuli close to that hyperplane than for those further away.
Year
Venue
DocType
2003
ADVANCES IN NEURAL INFORMATION PROCESSING SYSTEMS 16
Conference
Volume
ISSN
Citations 
16
1049-5258
2
PageRank 
References 
Authors
0.55
5
2
Name
Order
Citations
PageRank
Arnulf Graf11459.85
F A Wichmann223117.54