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» The Path-Packing Structure of Graphs
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MFCS
2007
Springer
15 years 10 months ago
Finding Paths Between Graph Colourings: PSPACE-Completeness and Superpolynomial Distances
Suppose we are given a graph G together with two proper vertex k-colourings of G, α and β. How easily can we decide whether it is possible to transform α into β by recolouring...
Paul S. Bonsma, Luis Cereceda
134
Voted
SIGMOD
2010
ACM
255views Database» more  SIGMOD 2010»
15 years 8 months ago
Large graph processing in the cloud
As the study of graphs, such as web and social graphs, becomes increasingly popular, the requirements of efficiency and programming flexibility of large graph processing tasks c...
Rishan Chen, Xuetian Weng, Bingsheng He, Mao Yang
AI
2010
Springer
15 years 4 months ago
Optimal query complexity bounds for finding graphs
We consider the problem of finding an unknown graph by using two types of queries with an additive property. Given a graph, an additive query asks the number of edges in a set of ...
Sung-Soon Choi, Jeong Han Kim
ALGORITHMICA
2007
86views more  ALGORITHMICA 2007»
15 years 4 months ago
Detecting Holes and Antiholes in Graphs
In this paper we study the problems of detecting holes and antiholes in general undirected graphs, and we present algorithms for these problems. For an input graph G on n vertices ...
Stavros D. Nikolopoulos, Leonidas Palios
ICPR
2008
IEEE
15 years 10 months ago
A colour text/graphics separation based on a graph representation
In this paper, a colour text/graphics segmentation is proposed. Firstly, it takes advantage of colour properties by computing a relevant hybrid colour model. Then an edge detectio...
Romain Raveaux, Jean-Christophe Burie, Jean-Marc O...