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  1. Article

    Open Access

    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 for Molecular Biology (2014)

  2. Article

    Open Access

    Incompatible quartets, triplets, and 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 for Molecular Biology (2013)

  3. No Access

    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)

  4. Article

    Open Access

    Exploring biological interaction networks with tailored weighted quasi-bicliques

    Biological networks provide fundamental insights into the functional characterization of genes and their products, the characterization of DNA-protein interactions, the identification of regulatory mechanisms,...

    Wen-Chieh Chang, Sudheer Vakati, Roland Krause, Oliver Eulenstein in BMC Bioinformatics (2012)

  5. No Access

    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)

  6. No Access

    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)

  7. No Access

    Chapter and Conference Paper

    Mining Biological Interaction Networks Using Weighted Quasi-Bicliques

    Biological network studies can provide fundamental insights into various biological tasks including the functional characterization of genes and their products, the characterization of DNA-protein interactions...

    Wen-Chieh Chang, Sudheer Vakati, Roland Krause in Bioinformatics Research and Applications (2011)