Margin-free classification and new class detection using finite Dirichlet mixtures
Prince John,
Alessandra R. Brazzale,
Maria Süveges
Abstract:We present a margin-free finite mixture model which allows us to simultaneously classify objects into known classes and to identify possible new object types using a set of continuous attributes. This application is motivated by the needs of identifying and possibly detecting new types of a particular kind of stars known as variable stars. We first suitably transform the physical attributes of the stars onto the simplex to achieve scale invariance while maintaining their dependence structure. This allows us to… Show more
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