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    Chapter and Conference Paper

    Fast Compatibility Testing for Phylogenies with Nested Taxa

    Semi-labeled trees are phylogenies whose internal nodes may be labeled by higher-order taxa. Thus, a leaf labeled Mus musculus could nest within a subtree whose root node is labeled Rodentia, which itself could n...

    Yun Deng, David Fernández-Baca in Algorithms in Bioinformatics (2016)

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    Chapter and Conference Paper

    Characterizing Compatibility and Agreement of Unrooted Trees via Cuts in Graphs

    Deciding whether there is a single tree —a supertree— that summarizes the evolutionary information in a collection of unrooted trees is a fundamental problem in phylogenetics. We consider two versions of this ...

    Sudheer Vakati, David Fernández-Baca in Algorithms in Bioinformatics (2013)

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    Chapter and Conference Paper

    Improved Lower Bounds on the Compatibility of Quartets, Triplets, and Multi-state Characters

    We study a long standing conjecture on the necessary and sufficient conditions for the compatibility of multi-state characters: There exists a function f(r) such that, for any set C of r-state characters, C is co...

    Brad Shutters, Sudheer Vakati, David Fernández-Baca in Algorithms in Bioinformatics (2012)

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    Chapter and Conference Paper

    Fixed-Parameter Algorithms for Finding Agreement Supertrees

    We study the agreement supertree approach for combining rooted phylogenetic trees when the input trees do not fully agree on the relative positions of the taxa. Two approaches to dealing with such conflicting ...

    David Fernández-Baca, Sylvain Guillemot, Brad Shutters in Combinatorial Pattern Matching (2012)

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    Chapter and Conference Paper

    Extracting Conflict-Free Information from Multi-labeled Trees

    A multi-labeled tree, or MUL-tree, is a phylogenetic tree where two or more leaves share a label, e.g., a species name. A MUL-tree can imply multiple conflicting phylogenetic relationships for the same set of ...

    Akshay Deepak, David Fernández-Baca, Michelle M. McMahon in Algorithms in Bioinformatics (2012)