ArticleBioinformatics (Oxford, England)2026
Phylogenetic inference under the balanced minimum evolution criterion via semidefinite programming.
Article in Bioinformatics (Oxford, England), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
motivationIn this study, we investigate the application of Semidefinite Programming (SDP) to phylogenetics. SDP is a powerful optimization framework that seeks to optimize a linear objective function over the cone of positive semidefinite matrices. As a convex optimization problem, SDP generalizes linear programming and provides relaxations for many combinatorial optimization problems. However, despite its many applications, SDP remains largely unused in computational biology.
resultsWe show how SDP relaxations can be designed and used for phylogenetic inference. We consider the Balanced Minimum Evolution (BME) problem, a widely used model in distance-based phylogenetics, and introduce an algorithm that combines an SDP relaxation with a rounding scheme that iteratively converts relaxed solutions into valid tree topologies. Experiments on simulated and empirical datasets show that the method enables accurate phylogenetic reconstruction. AVAILABILITY AND IMPLEMENTATION: The code and data are available at https://github.com/compbel/SDPTree (DOI 10.5281/zenodo.20838318).
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