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Semi-supervised Learning via Generalized Maximum Entropy

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons83905

Erkan,  AN
Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons83782

Altun,  Y
Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Erkan, A., & Altun, Y. (2010). Semi-supervised Learning via Generalized Maximum Entropy. Proceedings of the Thirteenth International Conference on Artificial Intelligence and Statistics (AISTATS 2010), 209-216.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-C04E-A
Zusammenfassung
Various supervised inference methods can be analyzed as convex duals of the generalized maximum entropy (MaxEnt) framework. Generalized MaxEnt aims to find a distribution that maximizes an entropy function while respecting prior information represented as potential functions in miscellaneous forms of constraints and/or penalties. We extend this framework to semi-supervised learning by incorporating unlabeled data via modifications to these potential functions reflecting structural assumptions on the data geometry. The proposed approach leads to a family of discriminative semi-supervised algorithms, that are convex, scalable, inherently multi-class, easy to implement, and that can be kernelized naturally. Experimental evaluation of special cases shows the competitiveness of our methodology.