A consensus tree is a phylogenetic tree that summarizes the evolutionary relationships inferred from a collection of phylogenetic trees with the same set of leaf labels. Among the many types of consensus trees that have been proposed in the last 50 years, the frequency difference consensus tree is one of the more finely resolved types that retains a large amount of information. This paper presents a new deterministic algorithm for constructing the frequency difference consensus tree. Given k phylogenetic trees with identical sets of n leaf labels, it runs in O(knlog{n}) time, improving the best previously known solution.
@InProceedings{jansson_et_al:LIPIcs.STACS.2024.43, author = {Jansson, Jesper and Sung, Wing-Kin and Tabatabaee, Seyed Ali and Yang, Yutong}, title = {{A Faster Algorithm for Constructing the Frequency Difference Consensus Tree}}, booktitle = {41st International Symposium on Theoretical Aspects of Computer Science (STACS 2024)}, pages = {43:1--43:17}, series = {Leibniz International Proceedings in Informatics (LIPIcs)}, ISBN = {978-3-95977-311-9}, ISSN = {1868-8969}, year = {2024}, volume = {289}, editor = {Beyersdorff, Olaf and Kant\'{e}, Mamadou Moustapha and Kupferman, Orna and Lokshtanov, Daniel}, publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik}, address = {Dagstuhl, Germany}, URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.STACS.2024.43}, URN = {urn:nbn:de:0030-drops-197539}, doi = {10.4230/LIPIcs.STACS.2024.43}, annote = {Keywords: phylogenetic tree, frequency difference consensus tree, tree algorithm, centroid path decomposition, max-Manhattan Skyline Problem} }
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