A non-parametric classification method based on the Dempster-Shafer theory of evidence. The principle of the method was first introduced in the following paper:
T. Denoeux. A k-nearest neighbor classification rule based on Dempster-Shafer theory. IEEE Transactions on Systems, Man and Cybernetics, 25(05):804-813, 1995.
A procedure for optimizing the parameters was later described in:
L. M. Zouhal and T. Denoeux. An evidence-theoretic k-NN rule with parameter optimization. IEEE Transactions on Systems, Man and Cybernetics C, 28(2):263-271,1998. pdf
More references are included in my list of publications.