This is the MATLAB implementation of Structure Preserving Metric Learning, an algorithm for learning a distance metric from a network. This software is free for academic use. If you use this for research, cite the paper:

@incollection{NIPS2011_1070,
 title ={Learning a Distance Metric from a Network},
 author={Blake Shaw and Bert Huang and Tony Jebara},
 booktitle = {Advances in Neural Information Processing Systems 24},
 editor = {J. Shawe-Taylor and R.S. Zemel and P. Bartlett and F.C.N. Pereira and K.Q. Weinberger},
 pages = {1899--1907},
 year = {2011}
}