Abstract
Computing a graph prototype may constitute a core element for clustering or classification tasks. However, its computation is an NP-Hard problem, even for simple classes of graphs. In this paper, we propose an efficient approach based on block coordinate descent to compute a generalized median graph from a set of graphs. This approach relies on a clear definition of the optimization process and handles labeling on both edges and nodes. This iterative process optimizes the edit operations to perform on a graph alternatively on nodes and edges. Several experiments on different datasets show the efficiency of our approach.
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- 1.
GREYC Chemistry dataset: https://brunl01.users.greyc.fr/CHEMISTRY/.
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This work is supported by Région Normandie through RIN AGAC project.
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Boria, N., Bougleux, S., Gaüzère, B., Brun, L. (2019). Generalized Median Graph via Iterative Alternate Minimizations. In: Conte, D., Ramel, JY., Foggia, P. (eds) Graph-Based Representations in Pattern Recognition. GbRPR 2019. Lecture Notes in Computer Science(), vol 11510. Springer, Cham. https://doi.org/10.1007/978-3-030-20081-7_10
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