Computer Science – Data Structures and Algorithms
Scientific paper
2007-03-27
In proceedings of the Data Compression Conference, 2007, pp 53-62, published by the IEEE Computer Society Press
Computer Science
Data Structures and Algorithms
10 pages, 7 figures, 2 tables published in Proceedings of the Data Compression Conference, 2007
Scientific paper
This work is motivated by the necessity to automate the discovery of structure in vast and evergrowing collection of relational data commonly represented as graphs, for example genomic networks. A novel algorithm, dubbed Graphitour, for structure induction by lossless graph compression is presented and illustrated by a clear and broadly known case of nested structure in a DNA molecule. This work extends to graphs some well established approaches to grammatical inference previously applied only to strings. The bottom-up graph compression problem is related to the maximum cardinality (non-bipartite) maximum cardinality matching problem. The algorithm accepts a variety of graph types including directed graphs and graphs with labeled nodes and arcs. The resulting structure could be used for representation and classification of graphs.
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