Applying alternative integral transforms to frequency statistics

Determine whether alternative integral transforms, including Fourier or Mellin transforms, can be used to estimate frequency-based statistics in Delphic set streams and characterize the classes of statistics to which such transforms apply.

Background

The paper’s framework interprets the expected support polynomial as a complementary Laplace transform and uses this representation to estimate F_k and other Bernstein-type statistics through sampling and numerical integration.

The authors explicitly leave open whether other transforms could provide analogous estimation frameworks and which statistic classes would admit such treatments.

References

Is it possible to use other integral transforms (e.g., Fourier or Mellin) for estimating frequency-based statistics? And identifying the classes those transforms apply to?

Unlocking Fractional Moments in Delphic Set Streams  (2608.13126 - Bal et al., 13 Aug 2026) in Section 8, Conclusion, item 3