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How tracer objects can improve competitive learning algorithms in astronomy

Murtagh, F.; Hernandez-Pajares, M.; Floris, J.

The main objective of this paper is to discuss how the use of tracer objects in competitive learning can improve results in stellar classification. To do this, we work with a Kohonen network applied to a reduced sample of the Hipparcos Input Catalogue, which contains missing values. The use of synthetic stars as tracer objects allows us to determi…