Browsing by Author "Held, Claudio M."

Now showing items 1-4 of 4

    • Extracting fuzzy rules from polysomnographic recordings for infant sleep classification 
      Held, Claudio M.; Heiss, Jaime E.; Estévez Valencia, Pablo; Pérez Flores, Claudio; Garrido, Marcelo; Algarín Crespo, Cecilia; Peirano Campos, Patricio (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10)
      A neuro-fuzzy classifier (NFC) of sleep-wake states and stages has been developed for healthy infants of ages 6 mo and onward. The NFC takes five input patterns previously identified on 20-s epochs from polysomnographic ...
    • Nonlinear projection using geodesic distances and the neural gas network 
      Estévez Valencia, Pablo; Chong, Andrés M.; Held, Claudio M.; Pérez Flores, Claudio (SPRINGER-VERLAG BERLIN, 2006)
      A nonlinear projection method that uses geodesic distances and the neural gas network is proposed. First, the neural gas algorithm is used to obtain codebook vectors, and a connectivity graph is concurrently created by ...
    • Registration of renal SPECT and 2.5D US images 
      Galdames, Francisco J.; Pérez Flores, Claudio; Estévez Valencia, Pablo; Held, Claudio M.; Jaillet, Fabrice; Lobo, Gabriel; Donoso Roselló, Gilda; Coll, Claudia (PERGAMON-ELSEVIER SCIENCE LTD, 2011-06)
      Image registration is the process of transforming different image data sets of an object into the same coordinate system. This is a relevant task in the field of medical imaging; one of its objectives is to combine information ...
    • Subscription fraud prevention in telecommunications using fuzzy rules and neural networks 
      Estévez Valencia, Pablo; Held, Claudio M.; Pérez Flores, Claudio (PERGAMON-ELSEVIER SCIENCE LTD, 2006-08)
      A system to prevent subscription fraud in fixed telecommunications with high impact on long-distance carriers is proposed. The system consists of a classification module and a prediction module. The classification module ...