PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

Weakly-paired maximum covariance analysis for multimodal dimensionality reduction and transfer learning
Christoph Lampert and Oliver Kroemer
In: 11th European Conference on Computer Vision, 6-9 Sept 2010, Greece.


We study the problem of multimodal dimensionality reduc- tion assuming that data samples can be missing at training time, and not all data modalities may be present at application time. Maximum covariance analysis, as a generalization of PCA, has many desirable prop- erties, but its application to practical problems is limited by its need for perfectly paired data. We overcome this limitation by a latent variable approach that allows working with weakly paired data and is still able to efficiently process large datasets using standard numerical routines. The resulting weakly paired maximum covariance analysis often finds better representations than alternative methods, as we show in two exemplary tasks: texture discrimination and transfer learning.

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EPrint Type:Conference or Workshop Item (Paper)
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Machine Vision
ID Code:8027
Deposited By:Oliver Kroemer
Deposited On:17 March 2011