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LICS
2009
IEEE
16 years 13 days ago
Logics with Rank Operators
—We introduce extensions of first-order logic (FO) and fixed-point logic (FP) with operators that compute the rank of a definable matrix. These operators are generalizations o...
Anuj Dawar, Martin Grohe, Bjarki Holm, Bastian Lau...
DAM
2007
120views more  DAM 2007»
15 years 5 months ago
Advances on sorting by reversals
Theproblemofsortingsignedpermutationsbyreversalsisinspiredbygenomerearrangementproblemsincomputationalmolecular biology. Given two genomes represented as signed permutations of th...
Eric Tannier, Anne Bergeron, Marie-France Sagot
CPM
2010
Springer
140views Combinatorics» more  CPM 2010»
15 years 10 months ago
Bounds on the Minimum Mosaic of Population Sequences under Recombination
We study the minimum mosaic problem, an optimization problem originated in population genomics. We develop a new lower bound, called the C bound. The C bound is provably higher and...
Yufeng Wu
FUN
2010
Springer
285views Algorithms» more  FUN 2010»
15 years 10 months ago
An Algorithmic Analysis of the Honey-Bee Game
The Honey-Bee game is a two-player board game that is played on a connected hexagonal colored grid, or in a generalized setting, on a connected graph with colored nodes. In a singl...
Rudolf Fleischer, Gerhard J. Woeginger
STACS
2010
Springer
16 years 23 days ago
Robust Fault Tolerant Uncapacitated Facility Location
In the uncapacitated facility location problem, given a graph, a set of demands and opening costs, it is required to find a set of facilities R, so as to minimize the sum of the c...
Shiri Chechik, David Peleg