JOURNALS
P.A.Estevez, C.M.Held, C.A.Holzmann, C.A.Perez, "Subscription Fraud Prevention in Telecommunications using Fuzzy Rules and Neural Networks", Expert Systems with Applications, Vol. 31, N°2, 2006 (in press)
C.A.Perez, A. Santibañez, C.A.Holzmann, P.A.Estévez, C.M.Held, “Power Consumption on Vibrotactile Piezoelectric and Electromechanical Transducers”, Medical & Biological Engineering & Computing, Vol. 41, 2003, pp. 718-726.
J.E.Heiss, C.M.Held, P.A.Estévez, C.A. Perez, C.A.Holzmann, J.P.Pérez, “Classification of Sleep-Stages in Infants: A Neurofuzzy Approach”, IEEE Eng. in Medicine & Biology Mag., Vol. 21, No 5, Sept./Oct. 2002, pp.147-151.
P.A.Estevez, C.M.Held, C.A.Holzmann, C.A.Perez, J.P.Perez, J.Heiss, M.Garrido, P.Peirano, "Polysomnographic Pattern Recognition For Automated Classification of Sleep-Waking States in Infants", Medical and Biological Engineering & Computing, Vol. 40, 2002, pp 105-113.
C.M.Held, R.J.Roy, "Hemodynamic Management of Congestive Heart Failure by Means of a Multiple Mode Rule-Based Control System Using Fuzzy Logic", IEEE Transactions on BME, Vol. 47, January 2000, pp 115-123.
C.A.Holzmann, C.A.Pérez, C.M.Held, M. San Martin, F.Pizarro, J.P.Perez, M.Garrido, P.Peirano, "Expert System Classification of Sleep Waking States in Infants", Medical & Biological Engineering & Computing, Vol.37, pp 466- 476, 1999.
C.M.Held, R.J.Roy, "Multiple Drug Hemodynamic Control by Means of a Supervisory-Fuzzy Rule-Based Adaptive Control System: Validation on a Model", IEEE Transactions on BME, April 1995, pp 371-385.
CONFERENCES
C.M. Held, J.E. Heiss, P.A. Estévez, C.A. Perez, C.A. Holzmann, J.P. Pérez, M. Garrido, C. Algarín, P. Peirano, “Automated procedures for sleep-waking staging in infants”, 17th Congress of the European Sleep Research Society, Prage, Czech Republic, October 2004.
C.M. Held, L. Causa, P. Estévez, C.A. Perez, M. Garrido, C. Algarín, P. Peirano, “Dual Approach for Automated Sleep Spindles Detection within EEG Background Activity in Infant Polysomnograms”, 26th Annual International Conference IEEE Engineering in Medicine and Biology Society, September 1-5, 2004, San Francisco, California, USA.
C.A.Perez, V.A.Lazcano, P.A.Estévez & C.M.Held, “Real Time Iris Detection on Faces with Coronal Axis Rotation”, 2004 IEEE Conference on Systems, Man and Cybernetics, The Hague, The Netherlands, Vol. 7, pp. 6389-6394, Oct. 2004.
C.A.Perez, V.A.Lazcano, P.A.Estévez & C.M.Held, “Real Time Iris Detection on Rotated Faces”, Optomechatronics Systems IV, Proceedings of the SPIE, Vol. 5264, Providence, Rhode Island, USA, 28-29 October 2003, pp. 42-53.
C.A.Perez, C.A.Holzmann, C.M.Held & P.A.Estévez, “Power Consumption on Vibrotactile Displays”, World Congress on Medical Physics and Biomedical Engineering, Sydney, Australia, Aug. 24-29, 2003.
C.A.Perez, C.A.Holzmann, C.M.Held & P.A.Estévez, “Real Time Eye Gaze Operated Keyboard”, World Congress on Medical Physics and Biomedical Engineering, Sydney, Australia, Aug. 24-29, 2003.
C.A.Perez, C.P.Peña, C.A.Holzmann, C.M.Held, "Design of a Virtual Keyboard Based on Iris Tracking", Proc. of the 2nd Joint Conf. of the IEEE/EMBS and BMES, Houston, TX, USA, Oct.23-26, 2002, pp. 2428-2429.
C.A.Perez, A.J.Santibañez, C.A.Holzmann, C.M.Held , "Power Consumption in a Piezoceramic Transducer for Vibrotactile Excitation", Proc. of the 2nd Joint Conf. of the IEEE/EMBS and BMES, Houston, TX, USA, Oct.23-26, 2002, pp.2430-2431.
J.E.Heiss, C.M.Held, P.A.Estevez, C.A.Perez, C.A. Holzmann, J.P.Perez, "Classification of Sleep-Stages in Infants: A Neuro-Fuzzy Approach", Proc. 23rd IEEE International Conference on Engineering in Medicine & Biology, Istambul, Turkey, 25-28 October 2001.
Vargas, L., Held, C., Sánchez, I., “A
Fuzzy Logic Technique to Assess and Select Cogeneration Equipment for Industrial
Applications”, Proc. NAPS, 32nd Annual North American Power Symposium, Volume
II, October 23-24, 2000, U. of Waterloo, Ontario, Canada, pp. 13-16.
P.A.Estevez, M.Fernandez, C.M.Held, C.A.Holzmann, C.A.Perez, J.P.Perez,
"Classification of Sleep Stages by Using Modular Neural Networks", Proc.
IEEE International Conf. on Systems, Man and Cybernetics, Nashville, TN,
USA, Oct. 2000.
C.A.Perez, C.M.Held, P.R.Mollinger, "Improved Handwritten Digit
Recognition System Based on Fuzzy Rules and Prototypes Created by
Euclidian Distance", Proc. IEEE International Conf. on Systems, Man and
Cybernetics, Nashville, TN, USA, Oct. 2000.
J.W.Huang, C.M.Held, R.J.Roy, "Drug Infusion for Control of Blood Pressure
During Anesthesia", Proc. American Control Conference, Chicago IL, USA,
July 2000.
C.A. Pérez, C.M.Held, P.R.Mollinger, "Handwritten Digit Recognition
Using Prototypes Created by Euclidian Distance", Proc. ICIIS'99, IEEE
Intl. Conf. on Information, Intelligence and Systems, Washington DC, USA,
Nov.1-3, 1999.
C.A. Perez, C.M.Held, P.R.Mollinger, "Clasificación de Números
Manuscritos en Base a Prototipos", Anales del Instituto de Ingenieros de
Chile, Vol.111, N.2, pp 40-49, Agosto 1999.
C.A.Holzmann, C.A.Pérez, C.M.Held, A.Ehijo, F.Pizarro, M. San Martin,
E.Rojas, M.Garrido, P.Peirano, "Modelo Funcional de los Estados de Sueño
y Vigilia en Lactantes", Anales XII Congreso Chileno de Ingeniería
Eléctrica, U. de la Frontera, Temuco, Chile, 3-8 Noviembre, pp 561-566,
1997.
C.A.Holzmann, C.A.Pérez, C.M.Held, A.Ehijo, F.Pizarro, M. San Martin,
E.Rojas, M.Garrido, P.Peirano, "A Behavioral Model for an Expert System to
Classify Sleep-Waking States in Infants", Abstracts of the World Congress
on Medical Physics & Biomedical Engineering, Nice, France, Sept.14-19,
published in Medical & Biological Engineering & Computing, Vol.35, Supplement
Part 1, pp 513, 1997.
R.Gopinath, B.W.Bequette, H.Kaufman, C.M.Held, J.Huang, R.J.Roy,
"Drug Delivery Control System Challenge",
Proc. IEEE Conf. on Decision and Control, New Orleans, LA,
Dec. 1995, pp 1310-1315.
C.M.Held, A.Omura, A.Nayak, R.J.Roy, "Rule-Based Multiple Mode
Control of Hemodynamic States in Patients with Congestive
Heart Failure", Proc. 17th IEEE Eng. in Medicine
and Biology Conference, Montreal, PQ, Canada, Sept. 1995.
H.Kaufman, C.M.Held, A.Nayak, R.J.Roy, B.W.Bequette, R.Gopinath "Adaptive and
Fuzzy Control of Anesthetic and Hemodynamic States", Proc. 8th Yale Workshop
on Adaptive and
Learning Systems, New Haven, CT, June 13-15, 1994.
A.Nayak, C.M.Held, R.J.Roy, "Fuzzy Logic Based Control of Anesthetic
Delivery Using
the Electroencephalogram", Proc. 13th Southern Biomed. Eng. Conf.,
Washington DC, April 16-17, 1994.
C.M.Held, R.J.Roy, "Rule-Based Control of Hemodynamic Variables through
Multiple Drug
Infusion in Patients with Congestive Heart Failure", Proc. IFAC Conf.
on Modeling
and Control in Biomedical Systems, Galveston, TX, March 27-30, 1994.
C.Held, J.Kurien, "Flapecan: A Knowledge-Based System in Electrocardiogram
Diagnosis", Proc. 5th Annual IEEE
Symp. on Computer-Based Medical Systems CBMS'92, Durham, NC, June 1992.
C.Holzmann, E.Rosselot, P.Estévez, C.Held, "Synthesis of a
Disease Diagnosis Model",
Proc. V Mediterranean Conference on Medicine and Biological Engineering, Patras,
Greece, 1987.
P.Estévez, C.A.Holzmann, C.Held, "Módulo de Adquisición
del Conocimiento para Sistema Experto de Apoyo al
Diagnóstico Médico" (Knowledge acquisition module for
an expert
system in medical diagnosis), Anales VII Congreso Chileno de
Ingeniería Eléctrica, Santiago, 18-20 November 1987.
BOOKS / THESIS / CHAPTERS
J.W.Huang, C.M.Held, R.J.Roy, "Hemodynamic Management With Multiple Drugs Using Fuzzy Logic", Chapter 11 in H.-N.Teodorescu, A.Kandel, L.C.Jain (Eds.), "Fuzzy and Neuro-Fuzzy Systems in Medicine (International Series on Computational Intelligence)", CRC Press (Hardcover, 352 pages), pp 319-341, October 1998.
C.M.Held,"Closed-Loop Hemodynamic Management by Means of a Rule-Based Control System Using Fuzzy Logic", Ph.D. Thesis, Rensselaer Polytechnic Institute, Troy, New York, USA, July 1995.
C.M.Held B., "Método para Sintetizar un Modelo de Diagnóstico Médico" (A method to synthetize a model for medical diagnosis), M.S. Thesis, Depto. de Ing. Eléctrica, Fac. de Ciencias Físicas y Matemáticas, U. de Chile, August 1990.
REPORTS
J.P. Domínguez, J.Litvak, C.Held, J.Oeffinger, C.A.Pérez, "Uso
de Red Internacional de Comunicación Computacional para la
Obtención de Información Médica",
I.I. Access - 87 Conf., Dallas, TX, USA, 17-20 March 1987.
CLASS NOTES
"Apuntes de Curso EM 755 Introducción a la Teoría de Conjuntos Difusos y Sistemas Inteligentes", Departamento de Ingeniería Eléctrica, Universidad de Chile, Marzo 2005, 50 páginas.
"Lógica Difusa": Notes for a course on Fuzzy Logic at the "Escuela de
Especialización en Informática", lectured at the "Universidad
Católica Nuestra Señora de la Asunción", Asunción, Paraguay.
28 pages, March 1996 (sponsored by UNESCO).
Laboratory Introduction to Embedded Control (LITEC): "Lab Manual".
Collaborated in versiones Spring 94, Fall 94 and Spring 95.
Rensselaer Polytechnic Institute, Troy NY, USA.
Engineering Lab I: Lab Manual. Version 1990-91 of the chapter:
"Experiment JL-4: Bandwidth Measurement", 23 pages (coauthor).
Rensselaer Polytechnic Institute, Troy NY, USA.