Sciweavers

3396 search results - page 471 / 680
» Tree representations of graphs
Sort
View
WG
1995
Springer
15 years 10 months ago
Modular Decomposition of Hypergraphs
We propose an O(n4) algorithm to build the modular decomposition tree of hypergraphs of dimension 3 and show how this algorithm can be generalized to compute in O(n3k−5) time th...
Paola Bonizzoni, Gianluca Della Vedova
CIKM
2008
Springer
15 years 8 months ago
An extended cooperative transaction model for xml
In many application areas, for example in design or media production processes, several authors have to work cooperatively on the same project. Thereby, a frequently used data for...
Francis Gropengießer, Kai-Uwe Sattler
SODA
2008
ACM
128views Algorithms» more  SODA 2008»
15 years 8 months ago
Analysis of greedy approximations with nonsubmodular potential functions
In this paper, we present two techniques to analyze greedy approximation with nonsubmodular functions restricted submodularity and shifted submodularity. As an application of the ...
Ding-Zhu Du, Ronald L. Graham, Panos M. Pardalos, ...
CORR
2010
Springer
130views Education» more  CORR 2010»
15 years 6 months ago
Dichotomy for tree-structured trigraph list homomorphism problems
Trigraph list homomorphism problems (also known as list matrix partition problems) have generated recent interest, partly because there are concrete problems that are not known to...
Tomás Feder, Pavol Hell, David G. Schell, J...
CORR
2010
Springer
147views Education» more  CORR 2010»
15 years 6 months ago
Modeling the structure and evolution of discussion cascades
We analyze the structure and evolution of discussion cascades in four popular websites: Slashdot, Barrapunto, Meneame and Wikipedia. Despite the big heterogeneities between these ...
Vicenç Gómez, Hilbert J. Kappen, And...