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1	Continuous Approximations of Discrete Phylogenetic Migration Models Huss, Simon, Mosetti Björk, Theodor January 2024 (has links) Phylogenetics explores the evolutionary relationships among species and one of the main approaches is to construct phylogenetic trees through inference-based methods. Beyond the evolutionary insights these trees provide, the underlying tree structure can also be used to study geographical migration of species. These geographical models, reminiscent of models of DNA sequence evolution, have predominantly been discrete in their nature. However, this poses a multitude of challenges, especially with high-dimensional state-spaces. Previous work has explored the possibility of using continuous diffusion models for geographical migration, however these were not aiming to model non-local migration and large state-spaces. This paper presents and evaluates a scalable continuous phylogenetic migration model which aims to approximate conventional discrete migration models in the case of local and non-local migration. Phylogenetic phylogenetic migration models continuous diffusion continuous-time Markov chains CTMC biogeography MolecularEvolution.jl multidimensional scaling MDS landmark Mathematics Matematik