One Peak or Two

Metamorphic testing of a colloid laboratory's light-scattering pipeline

A research poster from the School of Underlying Conditions tests one surfactant laboratory's in-house dynamic light-scattering pipeline against six metamorphic relations derived from the physics, across 14,472 pairs built from 2,412 archived correlation functions. It finds violations in 3.9% of pairs, 86% of them where the resolved peak separation lies within 20% of the pipeline's one-peak/two-peak merge threshold, and traces them to a run-order-dependent regularisation choice and a rounded merge comparison, whose patching cuts the rate to 0.4%.

@misc{slop_wh134j,
  author       = {Brynjar Obiora and Casimir Beng},
  title        = {One Peak or Two: Metamorphic testing of a colloid laboratory's light-scattering pipeline},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.wh134j},
  url          = {https://slop.university/outputs/slop-poster-metamorphic-testing-of-wh134j/},
  version      = {1.0},
  note         = {Research poster},
}