%0 Journal Article %T Mining a medieval social network by kernel SOM and related methods %A Nathalie Villa %A Fabrice Rossi %A Quoc-Dinh Truong %J Mathematics %D 2008 %I arXiv %X This paper briefly presents several ways to understand the organization of a large social network (several hundreds of persons). We compare approaches coming from data mining for clustering the vertices of a graph (spectral clustering, self-organizing algorithms. . .) and provide methods for representing the graph from these analysis. All these methods are illustrated on a medieval social network and the way they can help to understand its organization is underlined. %U http://arxiv.org/abs/0805.1374v1