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TCS
2002
13 years 7 months ago
Some permutation routing algorithms for low-dimensional hypercubes
Oblivious permutation routing in binary d-cubes has been well studied in the literature. In a permutation routing, each node initially contains a packet with a destination such th...
Frank K. Hwang, Y. C. Yao, Bhaskar DasGupta
WG
2005
Springer
14 years 1 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
SODA
2010
ACM
179views Algorithms» more  SODA 2010»
14 years 5 months ago
Property Testing and Parameter Testing for Permutations
There has been great interest in deciding whether a combinatorial structure satisfies some property, or in estimating the value of some numerical function associated with this com...
Carlos Hoppen, Yoshiharu Kohayakawa, Carlos G. T. ...
CPM
2001
Springer
108views Combinatorics» more  CPM 2001»
14 years 1 days ago
A Very Elementary Presentation of the Hannenhalli-Pevzner Theory
In 1995, Hannenhalli and Pevzner gave a first polynomial solution to the problem of finding the minimum number of reversals needed to sort a signed permutation.Their solution, a...
Anne Bergeron
TIP
2008
124views more  TIP 2008»
13 years 7 months ago
Graph Laplacian Tomography From Unknown Random Projections
We introduce a graph Laplacian based algorithm for the tomography reconstruction of a planar object from its projections taken at random unknown directions. The algorithm is shown ...
Ronald R. Coifman, Yoel Shkolnisky, Fred J. Sigwor...