Sciweavers

103 search results - page 13 / 21
» Representations of graphs modulo n
Sort
View
NAACL
2007
13 years 9 months ago
Worst-Case Synchronous Grammar Rules
We relate the problem of finding the best application of a Synchronous ContextFree Grammar (SCFG) rule during parsing to a Markov Random Field. This representation allows us to u...
Daniel Gildea, Daniel Stefankovic
COMBINATORICS
2006
118views more  COMBINATORICS 2006»
13 years 7 months ago
Noncrossing Trees and Noncrossing Graphs
We give a parity reversing involution on noncrossing trees that leads to a combinatorial interpretation of a formula on noncrossing trees and symmetric ternary trees in answer to a...
William Y. C. Chen, Sherry H. F. Yan
DIAGRAMS
2004
Springer
14 years 29 days ago
Ensuring the Drawability of Extended Euler Diagrams for up to 8 Sets
Abstract. This paper shows by a constructive method the existence of a diagrammatic representation called extended Euler diagrams for any collection of sets X1, ..., Xn , n < 9....
Anne Verroust, Marie-Luce Viaud
DM
1999
145views more  DM 1999»
13 years 7 months ago
Modular decomposition and transitive orientation
A module of an undirected graph is a set X of nodes such for each node x not in X , either every member of X is adjacent to x, or no member of X is adjacent to x. There is a canon...
Ross M. McConnell, Jeremy Spinrad
COMBINATORICA
2008
84views more  COMBINATORICA 2008»
13 years 7 months ago
Parity check matrices and product representations of squares
Let NF(n, k, r) denote the maximum number of columns in an n-row matrix with entries in a finite field F in which each column has at most r nonzero entries and every k columns are...
Assaf Naor, Jacques Verstraëte