A good C++ lib for Machine Learning, Pattern Recognition students

Just find a good lib including various machine learning / optimization algorithms implemented, which is cross-platforms and with modern C++ techniques.

http://dlib.net

Note:
This is a really good place to learn some C++ programming for optimization and machine learning.

Of course, I have just found this place. I, myself, still need some time to dig and play with this library. I will keep it updated. :)

PS: another good MATLAB implementation for Hungarian algorithm: (This  link only for my own ref)

http://www.mathworks.com/matlabcentral/fileexchange/26836-lapjv-jonker-volgenant-algorithm-for-linear-assignment-problem-v2-5