Affine Non-negative Collaborative Representation
ANCR sloves the following problem,
where y is a test sample, X is the dictionary, and c is the corresponding coding vector of y on X. We employ the optimization algorithm proposed in the following paper to solve the simplex constraint, and the code is provided by Prof. Nie which is accessible at http://www.escience.cn/people/fpnie/index.html.
J. Huang, F. Nie, H. Huang. A new simplex sparse learning model to measure data similarity for clustering. Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence (IJCAI), 2015.