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ICALP
2007
Springer
14 years 3 months ago
Sharp Tractability Borderlines for Finding Connected Motifs in Vertex-Colored Graphs
We study the problem of finding occurrences of motifs in vertex-colored graphs, where a motif is a multiset of colors, and an occurrence of a motif is a subset of connected vertic...
Michael R. Fellows, Guillaume Fertin, Danny Hermel...
ALGORITHMICA
2010
115views more  ALGORITHMICA 2010»
13 years 8 months ago
Multi-Color Pebble Motion on Graphs
We consider a graph with n vertices, and p < n pebbles of m colors. A pebble move consists of transferring a pebble from its current host vertex to an adjacent unoccupied verte...
Gilad Goraly, Refael Hassin
CPM
2009
Springer
127views Combinatorics» more  CPM 2009»
14 years 3 months ago
Deconstructing Intractability: A Case Study for Interval Constrained Coloring
The NP-hard Interval Constrained Coloring problem appears in the interpretation of experimental data in biochemistry dealing with protein fragments. Given a set of m integer interv...
Christian Komusiewicz, Rolf Niedermeier, Johannes ...
INFOCOM
2012
IEEE
11 years 11 months ago
Sampling directed graphs with random walks
Abstract—Despite recent efforts to characterize complex networks such as citation graphs or online social networks (OSNs), little attention has been given to developing tools tha...
Bruno F. Ribeiro, Pinghui Wang, Fabricio Murai, Do...
ICALP
2007
Springer
14 years 27 days ago
Online Conflict-Free Colorings for Hypergraphs
We provide a framework for online conflict-free coloring (CF-coloring) of any hypergraph. We use this framework to obtain an efficient randomized online algorithm for CF-coloring ...
Amotz Bar-Noy, Panagiotis Cheilaris, Svetlana Olon...