Beyond Mahalanobis Metric: Cayley-Klein Metric Learning
Abstract
Cayley-Klein metric is a kind of non-Euclidean metric suitable for projective space. In this paper, we introduce it into the computer vision community as a powerful metric and an alternative to the widely studied Mahalanobis metric. We show that besides its good characteristic in non-Euclidean space, it is a generalization of Mahalanobis metric in some specific cases. Furthermore, as many Mahalanobis metric learning, we give two kinds of Cayley-Klein metric learning methods: MMC Cayley-Klein metric learning and LMNN Cayley-Klein metric learning. Experiments have shown the superiority of Cayley-Klein metric over Mahalanobis ones and the effectiveness of our Cayley-Klein metric learning methods.
Cite
Text
Bi et al. "Beyond Mahalanobis Metric: Cayley-Klein Metric Learning." Conference on Computer Vision and Pattern Recognition, 2015. doi:10.1109/CVPR.2015.7298847Markdown
[Bi et al. "Beyond Mahalanobis Metric: Cayley-Klein Metric Learning." Conference on Computer Vision and Pattern Recognition, 2015.](https://mlanthology.org/cvpr/2015/bi2015cvpr-beyond/) doi:10.1109/CVPR.2015.7298847BibTeX
@inproceedings{bi2015cvpr-beyond,
title = {{Beyond Mahalanobis Metric: Cayley-Klein Metric Learning}},
author = {Bi, Yanhong and Fan, Bin and Wu, Fuchao},
booktitle = {Conference on Computer Vision and Pattern Recognition},
year = {2015},
doi = {10.1109/CVPR.2015.7298847},
url = {https://mlanthology.org/cvpr/2015/bi2015cvpr-beyond/}
}