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WAW
2009
Springer
136views Algorithms» more  WAW 2009»
14 years 2 months ago
Permuting Web Graphs
Since the first investigations on web graph compression, it has been clear that the ordering of the nodes of the graph has a fundamental influence on the compression rate (usuall...
Paolo Boldi, Massimo Santini, Sebastiano Vigna
IPL
2007
130views more  IPL 2007»
13 years 7 months ago
Linear structure of bipartite permutation graphs and the longest path problem
The class of bipartite permutation graphs is the intersection of two well known graph classes: bipartite graphs and permutation graphs. A complete bipartite decomposition of a bip...
Ryuhei Uehara, Gabriel Valiente
ISAAC
2009
Springer
150views Algorithms» more  ISAAC 2009»
14 years 2 months ago
Random Generation and Enumeration of Bipartite Permutation Graphs
Connected bipartite permutation graphs without vertex labels are investigated. First, the number of connected bipartite permutation graphs of n vertices is given. Based on the num...
Toshiki Saitoh, Yota Otachi, Katsuhisa Yamanaka, R...
DM
2008
97views more  DM 2008»
13 years 7 months ago
On uniquely k-determined permutations
Motivated by a new point of view to study occurrences of consecutive patterns in permutations, we introduce the notion of uniquely k-determined permutations. We give two criteria f...
Sergey V. Avgustinovich, Sergey Kitaev
WG
2004
Springer
14 years 24 days ago
Treelike Comparability Graphs: Characterization, Recognition, and Applications
An undirected graph is a treelike comparability graph if it admits a transitive orientation such that its transitive reduction is a tree. We show that treelike comparability graphs...
Sabine Cornelsen, Gabriele Di Stefano