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Testing the variety hypothesis

Published: July 22, 2025 | arXiv ID: 2507.16705v1

By: A. Lerario , P. Roos Hoefgeest , M. Scolamiero and more

Potential Business Impact:

Finds hidden patterns in data using math.

Business Areas:
A/B Testing Data and Analytics

Given a probability measure on the unit disk, we study the problem of deciding whether, for some threshold probability, this measure is supported near a real algebraic variety of given dimension and bounded degree. We call this "testing the variety hypothesis". We prove an upper bound on the so-called "sample complexity" of this problem and show how it can be reduced to a semialgebraic decision problem. This is done by studying in a quantitative way the Hausdorff geometry of the space of real algebraic varieties of a given dimension and degree.

Page Count
27 pages

Category
Mathematics:
Algebraic Geometry