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arXiv · 1408.2040

Prediction with Advice of Unknown Number of Experts

Alexey Chernov·Vladimir Vovk
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Abstract

In the framework of prediction with expert advice, we consider a recently introduced kind of regret bounds: the bounds that depend on the effective instead of nominal number of experts. In contrast to the Normal- Hedge bound, which mainly depends on the effective number of experts but also weakly depends on the nominal one, we obtain a bound that does not contain the nominal number of experts at all. We use the defensive forecasting method and introduce an application of defensive forecasting to multivalued supermartingales.

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Alexey Chernov, Vladimir Vovk. 2014-08-09. Prediction with Advice of Unknown Number of Experts. https://arxiv.org/abs/1408.2040

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