All works in this field use supervised learning and classifcation like SVM, decision trees, Neural Network, boosting, ...
There is a pleinty of litterature in this field. here after 2 most recent ones which cite other ones:
- J. Wu, W. A. P. Smith, E. R. Hancock, "Gender Classification based on Facial Surface Normals", the 19th International Conference on Pattern Recognition, Florida, USA, 2008.
- Z. Xu, L. Lu, P. Shi, "A Hybrid Approach to Gender Classification from Face Images", the 19th International Conference on Pattern Recognition, Florida, USA, 2008.
Anis