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Classification automatique - Fabrice Rossi

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Approches ascendantes<br />

classification ascendante hiérarchique (CAH)<br />

algorithme (pour N objets) :<br />

1. partition initiale : chaque objet forme une classe<br />

2. pour i allant de 1 à N − 1 :<br />

2.1 choisir et fusionner deux classes parmi les N − i + 1<br />

question centrale : comment choisir les classes à<br />

fusionner <br />

45 / 114 F. <strong>Rossi</strong> <strong>Classification</strong> hiérarchique

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