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Contributions à l'étude de la classification spectrale et applications

Contributions à l'étude de la classification spectrale et applications

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36 C<strong>la</strong>ssification <strong>et</strong> éléments spectraux <strong>de</strong> <strong>la</strong> matrice affinité gaussienne<br />

(a) Exemple <strong>de</strong> clustering idéal (b) Exemple <strong>de</strong> sous-clustering<br />

(c) Exemple <strong>de</strong> sur-clustering (d) Exemple <strong>de</strong> mauvais clustering<br />

Figure 2.1 – Définitions du clustering

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