Abstract
Given a graph, the Edge minimum sum-of-squares clustering problem requires finding p prototypes (cluster centres) by minimizing the sum of their squared distances from a set of vertices to their nearest prototype, where a prototype can be either a vertex or an inner point of an edge. In this paper we have implemented Variable neighborhood search based heuristic for solving it. We consider three different local search procedures, K-means, J-means, and a new I-means heuristic. Experimental results indicate that the implemented VNS-based heuristic produces the best known results in the literature.

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The work was conducted at National Research University Higher School of Economics and supported by RSF Grant 14-41-00039.
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Nikolaev, A., Mladenović, N. & Todosijević, R. J-means and I-means for minimum sum-of-squares clustering on networks. Optim Lett 11, 359–376 (2017). https://doi.org/10.1007/s11590-015-0974-4
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DOI: https://doi.org/10.1007/s11590-015-0974-4