LATIN 2012: Theoretical Informatics
10th Latin American Symposium, Arequipa, Peru, April 16-20, 2012. Proceedings
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7 Result(s)
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David Fernández-Baca
English
Computation by Abstract Devices
Discrete Mathematics in Computer Science
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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 ...
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Book and Conference Proceedings
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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...
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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 ...
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Chapter and Conference Paper
Constructing Large Conservative Supertrees
Generalizations of the strict and loose consensus methods to the supertree setting, recently introduced by McMorris and Wilkinson, are studied. The supertrees these methods produce are conservative in the sens...
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Chapter and Conference Paper
Comparing and Aggregating Partially Resolved Trees
We define, analyze, and give efficient algorithms for two kinds of distance measures for rooted and unrooted phylogenies. For rooted trees, our measures are based on the topologies the input trees induce on tripl...
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Chapter and Conference Paper
Multi-parameter Minimum Spanning Trees
A framework for solving certain multidimensional parametric search problems in randomized linear time is presented, along with its application to optimization on matroids, including parametric minimum spanning...
