Abstract
We prove that no single rank ordered adversary strategy is globally optimal for the prediction with expert advice problem with six or more experts, in both the geometric stopping and finite time horizon settings. The proof is based on establishing a leading order correction when one expert moves far ahead of the others. This allows us to connect optimal strategies between $n$ and $j<n$ experts and utilize recent results on the exact optimality set for the five expert problem.
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Publication details
- Journal
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- Open access
- Green open access
Cite this article
APA 7
Calder, J., & Drenska, N. (2026). On prediction from expert advice with more than five experts. https://omanscience.com/en/articles/on-prediction-from-expert-advice-with-more-than-five-experts
MLA 9
Calder, Jeff, and Nadejda Drenska. "On prediction from expert advice with more than five experts." https://omanscience.com/en/articles/on-prediction-from-expert-advice-with-more-than-five-experts.
Chicago (author–date)
Calder, Jeff, and Nadejda Drenska. 2026. "On prediction from expert advice with more than five experts." https://omanscience.com/en/articles/on-prediction-from-expert-advice-with-more-than-five-experts.
Harvard
Calder, J. and Drenska, N. (2026) 'On prediction from expert advice with more than five experts', Available at: https://omanscience.com/en/articles/on-prediction-from-expert-advice-with-more-than-five-experts.
Vancouver
Calder J, Drenska N. On prediction from expert advice with more than five experts. https://omanscience.com/en/articles/on-prediction-from-expert-advice-with-more-than-five-experts
IEEE
J. Calder, and N. Drenska, "On prediction from expert advice with more than five experts," https://omanscience.com/en/articles/on-prediction-from-expert-advice-with-more-than-five-experts.