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Issue No.03 - March (2005 vol.27)
pp: 365-378
ABSTRACT
This paper is concerned with computing graph edit distance. One of the criticisms that can be leveled at existing methods for computing graph edit distance is that they lack some of the formality and rigor of the computation of string edit distance. Hence, our aim is to convert graphs to string sequences so that string matching techniques can be used. To do this, we use a graph spectral seriation method to convert the adjacency matrix into a string or sequence order. We show how the serial ordering can be established using the leading eigenvector of the graph adjacency matrix. We pose the problem of graph-matching as a maximum a posteriori probability (MAP) alignment of the seriation sequences for pairs of graphs. This treatment leads to an expression in which the edit cost is the negative logarithm of the a posteriori sequence alignment probability. We compute the edit distance by finding the sequence of string edit operations which minimizes the cost of the path traversing the edit lattice. The edit costs are determined by the components of the leading eigenvectors of the adjacency matrix and by the edge densities of the graphs being matched. We demonstrate the utility of the edit distance on a number of graph clustering problems.
INDEX TERMS
Graph edit distance, graph seriation, maximum a posteriori probability (MAP), graph-spectral methods.
CITATION
Antonio Robles-Kelly, Edwin R. Hancock, "Graph Edit Distance from Spectral Seriation", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.27, no. 3, pp. 365-378, March 2005, doi:10.1109/TPAMI.2005.56
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