Chromatic alpha complexes
Cultrera di Montesano S, Draganov O, Edelsbrunner H, Saghafian M. 2026. Chromatic alpha complexes. Foundations of Data Science. 8, 30–62.
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Corresponding author has ISTA affiliation
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Abstract
Motivated by applications in medical sciences, we study finite chromatic sets in Euclidean space from a topological perspective. Based on the persistent homology for images, kernels and cokernels, we design provably stable homological quantifiers that describe the geometric micro- and macro-structure of how the color classes mingle. These can be efficiently computed using chromatic variants of Delaunay and alpha complexes, and code that does these computations is provided.
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Publishing Year
Date Published
2026-03-01
Journal Title
Foundations of Data Science
Publisher
AIMS
Acknowledgement
This project has received funding from the European Research
Council (ERC) under the European Union’s Horizon 2020 research and innovation
programme, grant no. 788183, from the Wittgenstein Prize, Austrian Science Fund
(FWF), grant no. Z 342-N31, and from the DFG Collaborative Research Center TRR
109, ‘Discretization in Geometry and Dynamics’, Austrian Science Fund (FWF),
grant no. I 02979-N35.
Volume
8
Page
30-62
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IST-REx-ID
Cite this
Cultrera di Montesano S, Draganov O, Edelsbrunner H, Saghafian M. Chromatic alpha complexes. Foundations of Data Science. 2026;8:30-62. doi:10.3934/fods.2025003
Cultrera di Montesano, S., Draganov, O., Edelsbrunner, H., & Saghafian, M. (2026). Chromatic alpha complexes. Foundations of Data Science. AIMS. https://doi.org/10.3934/fods.2025003
Cultrera di Montesano, Sebastiano, Ondrej Draganov, Herbert Edelsbrunner, and Morteza Saghafian. “Chromatic Alpha Complexes.” Foundations of Data Science. AIMS, 2026. https://doi.org/10.3934/fods.2025003.
S. Cultrera di Montesano, O. Draganov, H. Edelsbrunner, and M. Saghafian, “Chromatic alpha complexes,” Foundations of Data Science, vol. 8. AIMS, pp. 30–62, 2026.
Cultrera di Montesano S, Draganov O, Edelsbrunner H, Saghafian M. 2026. Chromatic alpha complexes. Foundations of Data Science. 8, 30–62.
Cultrera di Montesano, Sebastiano, et al. “Chromatic Alpha Complexes.” Foundations of Data Science, vol. 8, AIMS, 2026, pp. 30–62, doi:10.3934/fods.2025003.
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