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» A Combinatorial Theorem for Trees
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JCSS
2006
89views more  JCSS 2006»
15 years 6 months ago
Ramsey-type theorems for metric spaces with applications to online problems
A nearly logarithmic lower bound on the randomized competitive ratio for the metrical task systems problem is presented. This implies a similar lower bound for the extensively stu...
Yair Bartal, Béla Bollobás, Manor Me...
RECOMB
2008
Springer
16 years 6 months ago
Algorithms for Exploring the Space of Gene Tree/Species Tree Reconciliations
We describe algorithms to explore the space of all possible reconciliations between a gene tree and a species tree. We propose an algorithm for generating a random reconciliation, ...
Jean-Philippe Doyon, Cedric Chauve, Sylvie Hamel
WG
2005
Springer
15 years 11 months ago
Algebraic Operations on PQ Trees and Modular Decomposition Trees
Partitive set families are families of sets that can be quite large, but have a compact, recursive representation in the form of a tree. This tree is a common generalization of PQ...
Ross M. McConnell, Fabien de Montgolfier
LICS
1997
IEEE
15 years 9 months ago
Automata, Tableaus and a Reduction Theorem for Fixpoint Calculi in Arbitrary Complete Lattices
Fixpoint expressions built from functional signatures interpreted over arbitrary complete lattices are considered. A generic notionof automatonis defined and shown, by means of a ...
David Janin
ATAL
2009
Springer
16 years 17 days ago
Combinatorial prediction markets for event hierarchies
We study combinatorial prediction markets where agents bet on the sum of values at any tree node in a hierarchy of events, for example the sum of page views among all the children...
Mingyu Guo, David M. Pennock