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» On the interlace polynomials of forests
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LATIN
2010
Springer
15 years 4 months ago
Some Observations on Holographic Algorithms
Abstract. We define the notion of diversity for families of finite functions, and express the limitations of a simple class of holographic algorithms in terms of limitations on d...
Leslie G. Valiant
82
Voted
JCT
2007
133views more  JCT 2007»
14 years 9 months ago
Biased graphs. VII. Contrabalance and antivoltages
Abstract. We develop linear representation theory for bicircular matroids, a chief example being a matroid associated with forests of a graph, and bicircular lift matroids, a chief...
Thomas Zaslavsky
80
Voted
FOCS
2006
IEEE
15 years 3 months ago
Inclusion--Exclusion Algorithms for Counting Set Partitions
Given an n-element set U and a family of subsets S ⊆ 2U we show how to count the number of k-partitions S1 ∪ · · · ∪ Sk = U into subsets Si ∈ S in time 2nnO(1). The only...
Andreas Björklund, Thore Husfeldt
RECOMB
2009
Springer
15 years 4 months ago
Phylogenies without Branch Bounds: Contracting the Short, Pruning the Deep
Abstract Constantinos Daskalakis1 , Elchanan Mossel2, , and Sebastien Roch1 1 Microsoft Research 2 UC Berkeley and Weizman Institute We introduce a new phylogenetic reconstruction ...
Constantinos Daskalakis, Elchanan Mossel, Sé...
RECOMB
2010
Springer
14 years 8 months ago
An Approximation Algorithm for Computing a Parsimonious First Speciation in the Gene Duplication Model
We consider the following problem: given a forest of gene family trees on a set of genomes, find a first speciation which splits these genomes into two subsets and minimizes the ...
Aïda Ouangraoua, Krister M. Swenson, Cedric C...