12–17 Jul 2026
University of Graz
Europe/Vienna timezone

How choices in quantifying data affect parameter identifiability in agent-based models of pattern formation

MS91-01
16 Jul 2026, 10:40
20m
01.15 - HS (University of Graz)

01.15 - HS

University of Graz

108

Speaker

Yue Liu (Purdue University)

Description

Pattern formation arising from the collective behaviour of autonomous agents occurs across many areas of biology, including skin patterns. Agent-based models provide a natural framework for describing such systems. However, the high-dimensional nature of the data and model stochasticity pose significant challenges for parameter inference and identifiability analysis. To help address this challenge, researchers often rely on lower-dimensional summaries of model output, such as cell number or stripe width. However, it remains unclear which quantitative summaries are most informative for inference. In this work, we compare topological signatures derived from Vietoris–Rips and sweeping-plane filtrations with classical statistical summaries, such as pair correlation functions. We evaluate the effectiveness of these different quantitative approaches within a Bayesian pipeline for parameter inference, and show how the choice of method for summarizing pattern data impacts parameter identifiability.

Author

Yue Liu (Purdue University)

Presentation materials

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