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Show HN: For 10 World Cups, my model's 2 favorites had the champion every time

papers.ssrn.com

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Re: Show HN: For 10 World Cups, my model's 2 favorites had the champion every time

#6
post #3

How does this paper not even mention the word "overfitting"?

The abstract does say

> limitations, principally the small number of tournaments available for validation and the risk of in-sample weight selection

But I agree this model is no more valuable than Paul the Octopus.

Re: Show HN: For 10 World Cups, my model's 2 favorites had the champion every time

#10
> Applied prospectively to the in-progress 2026 World Cup from the Round of 32, the model identifies Argentina (28.0%) and Spain (21.1%) as the leading championship candidates.

Seems weird to wait to run the "prospective" simulation until the World Cup is already in progress. Although it seems that the model also needs to use "the actual bracket and group-stage performance". So it's not prospective?

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