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Published in:
2007 | OriginalPaper | Chapter
Sharp Tractability Borderlines for Finding Connected Motifs in Vertex-Colored Graphs
Authors : Michael R. Fellows, Guillaume Fertin, Danny Hermelin, Stéphane Vialette
Published in: Automata, Languages and Programming
Publisher: Springer Berlin Heidelberg
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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 vertices whose multiset of colors equals the motif. This problem has applications in metabolic network analysis, an important area in bioinformatics. We give two positive results and three negative results that together draw sharp borderlines between tractable and intractable instances of the problem.