TY - GEN
T1 - Discriminative k-metrics
AU - Szlam, Arthur
AU - Sapiro, Guillermo
PY - 2009
Y1 - 2009
N2 - The k q-flats algorithm is a generalization of the popular k-means algorithm where q dimensional best fit affine sets replace centroids as the cluster prototypes. In this work, a modification of the k q-flats framework for pattern classification is introduced. The basic idea is to replace the original reconstruction only energy, which is optimized to obtain the k affine spaces, by a new energy that incorporates discriminative terms. This way, the actual classification task is introduced as part of the design and optimization. The presentation of the proposed framework is complemented with experimental results, showing that the method is computationally very efficient and gives excellent results on standard supervised learning benchmarks.
AB - The k q-flats algorithm is a generalization of the popular k-means algorithm where q dimensional best fit affine sets replace centroids as the cluster prototypes. In this work, a modification of the k q-flats framework for pattern classification is introduced. The basic idea is to replace the original reconstruction only energy, which is optimized to obtain the k affine spaces, by a new energy that incorporates discriminative terms. This way, the actual classification task is introduced as part of the design and optimization. The presentation of the proposed framework is complemented with experimental results, showing that the method is computationally very efficient and gives excellent results on standard supervised learning benchmarks.
UR - https://www.scopus.com/pages/publications/70449467348
UR - https://www.scopus.com/inward/citedby.url?scp=70449467348&partnerID=8YFLogxK
U2 - 10.1145/1553374.1553503
DO - 10.1145/1553374.1553503
M3 - Conference contribution
AN - SCOPUS:70449467348
SN - 9781605585161
T3 - Proceedings of the 26th International Conference On Machine Learning, ICML 2009
SP - 1009
EP - 1016
BT - Proceedings of the 26th International Conference On Machine Learning, ICML 2009
PB - Omnipress
T2 - 26th International Conference On Machine Learning, ICML 2009
Y2 - 14 June 2009 through 18 June 2009
ER -