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UID:5510@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20130620T140000
DTEND;TZID=Europe/Paris:20130620T150000
DTSTAMP:20241029T171557Z
URL:https://www.i2m.univ-amu.fr/evenements/francois-brucker-centrale-marse
 ille-lif-latticial-approach-for-clustering-problems/
SUMMARY: (...): François Brucker (Centrale Marseille\\\, LIF): Latticial A
 pproach for clustering problems
DESCRIPTION:: Latticial Approach for clustering problems\nBy François Bruc
 ker\\\, Centrale Marseille\\\, LIF.\n\nWe present a combinatorial model wh
 ich generalizes phylogenetic trees. This model links together a graph mode
 l (strongly chordal graphs)\\\, a lattice model (crown-free lattices) and 
 a clustering model (chordal quasi-ultrametrics). This structure allows to 
 model networks and to associate attributes/labels to data. In classificati
 on\\\, this kind of approximation yields a global visualization of the clu
 sters and their relationships through dedicated 2-dimensional or 3-dimensi
 onal representations. It can be seen as a compromise between hierarchies (
 simple struc- ture\\\; easy to interpret) and general lattices (rich inter
 actions between elements\\\; hard to interpret).\n\nWe conclude be some op
 en problems and possible links between this approach and machine learning 
 methods like decision tree.
CATEGORIES:Séminaire
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DTSTART:20130331T030000
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