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  Healing the Relevance Vector Machine through Augmentation

Rasmussen, C., & Candela, J. (2005). Healing the Relevance Vector Machine through Augmentation. In ICML 2005 (pp. 689).

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 Creators:
Rasmussen, CE1, Author           
Candela, JQ1, Author           
De Raedt S. Wrobel, L., Editor
Affiliations:
1Department Empirical Inference, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497795              

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 Abstract: The Relevance Vector Machine (RVM) is a sparse approximate Bayesian kernel method. It provides full predictive distributions for test cases. However, the predictive uncertainties have the unintuitive property, that emphthey get smaller the further you move away from the training cases. We give a thorough analysis. Inspired by the analogy to non-degenerate Gaussian Processes, we suggest augmentation to solve the problem. The purpose of the resulting model, RVM*, is primarily to corroborate the theoretical and experimental analysis. Although RVM* could be used in practical applications, it is no longer a truly sparse model. Experiments show that sparsity comes at the expense of worse predictive distributions.

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 Dates: 2005
 Publication Status: Issued
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 Identifiers: BibTex Citekey: 3460
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Title: ICML 2005
Place of Event: Bonn, Germany
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Title: ICML 2005
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 689 Identifier: -