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phone: (301) 405-6629
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2211
A. V. Williams Building
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FAX: (301) 314-9920
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email: pabshire@isr.umd.edu
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College
Park, MD 20742
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Education
and Academic Research
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Ph.D.,
Electrical Engineering, The Johns Hopkins University, Oct 2001.
Sensory Communications and Microsystems Laboratory, Professor A. G. Andreou.
Dissertation: Sensory Information Processing under Physical Constraints Utilizing information theory and detailed physical models to derive performance measures (channel capacity and bit-energy) and to investigate performance limitations and trade-offs between performance and resources for several systems, including blowfly photoreceptors, VLSI photosensors, and the CMOS inverter. M.S., Electrical Engineering, The Johns Hopkins University, 1997.
B.S., Physics with Honor, California Institute of Technology (Caltech),
1992.
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University
of Maryland, College Park, MD, Assistant Professor in the Dept. of
Electrical and Computer Engineering and the Institute for Systems Research,
2001-present.
Medtronic,
Inc., Minneapolis, MN, Research Engineer in the Bradycardia Research
Department, 1992-1995.
Designed
algorithms and sensors for detection and classification of faint cardiac
signals in the presence of other large signals and noise. Conducted
international clinical study to collect signals from human patients.
Designed low-power analog CMOS circuits implementing real-time independent
component analysis. Supervised B.S. and M.S. level engineers labeling data
and training neural networks.
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| Research
Interests |
Information
theory and modeling applied to neural coding and representation.
Physics
of information processing and information theory for physical systems.
Noise
theory for biological, electronic, and photonic systems.
Analysis
and design of sensory information processing systems.
Algorithm,
VLSI circuit, and microsystem design, esp. for low power applications.
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Teaching
Experience
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ENEE
312H, University of Maryland, Semiconductor Fundamentals,
Spring 2002.
Teaching Assistant, The Johns Hopkins University New
graduate level course in Sensory Information Processing offered
Spring 2001 and co-taught with Dr. A. G. Andreou. Delivered weekly
lecture, tutored, and graded papers for 50 undergraduate students in Integrated
Electronics, Fall 1997.
Guest lecture on pacemaker systems for graduate level Medical Microsystems class, The Johns Hopkins University, April 2000. Tutor, Linear System Theory, The Johns Hopkins University, 1996. |
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Colloquia
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“Information
capacity of a biophysical model of early blowfly vision,” Center for Language
and Speech Processing, The Johns Hopkins University, March 1999.
“Capacity and efficiency of blowfly photoreceptors,” Neural and Cognitive Systems, University of Maryland, College Park, MD, September 2001. |
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The
Johns Hopkins University Department of Electrical and Computer Engineering
Graduate
Steering Committee, 1999-2000; Graduate Student Representative to faculty
(elected position), 1998-1999; organized graduate student seminar series,
1995-1997.
FASEB Workshop on Retinal Neurobiology, VT, 1996, 1998, and CO, 2000. Agora Workshop on Fluctuations in Biology, Sigtuna, Sweden, 1999. ARL-SEDD/ARL-ARO Integrated Imaging Workshop at the Army Research Office, Research Triangle Park, NC, 1999. Telluride Workshop for Neuromorphic Engineering, Telluride, CO, 1998. Led a discussion group on computation. Organized seminars and short courses at Medtronic. Hosted many internationally recognized speakers including W. Sansen, E. Vittoz, C. Enz, and A. G. Andreou. Student
Member, Institute of Electrical and Electronics Engineers.
Ad
Hoc Editorial Consultant, Neural Computation (1997), Low-voltage/Low-power
integrated circuits and systems (1998), International Symposium
on Circuits and Systems (1996), and others.
Co-chair,
Quality of Life Session, 1991 Student-Faculty Conference, Caltech.
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Awards
and
Honors |
U.S.
Patent Number 5,755,739, issued May 26, 1998, “Adaptive and morphological
system for discriminating P-waves and R-waves inside the human body.”
NSF Graduate Fellowship, 1995-1998. Medtronic Customer-Focused Quality Award, Far Field P-Wave Science Team, 1995. Caltech: Alcorn and Barrett Scholarships, 1990-1992.Summer Undergraduate Research Fellowship, 1990. Vice President, Dabney House, 1991-1992. National Merit Scholar and USA Today Top 20 Academic Team, 1988. |
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P.
Abshire and A. G. Andreou, “A Communication Channel Model for Information
Transmission in the Blowfly Photoreceptor,” Biosystems, Vol.62,
No.1-3, pp.113-133, Sep-Oct 2001.
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P.
Abshire and A. G. Andreou, “Capacity and Energy Cost of Information in
Biological and Silicon Photoreceptors,” Proceedings IEEE, Vol.89,
pp.1052-1064, July 2001.
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| P. Abshire and A. G. Andreou, “Relating information capacity to a biophysical model for blowfly photoreceptors,” Neurocomputing, Vol.32-33, pp.9-16, June 2000. |
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P.
Abshire and A. G. Andreou, “A Comparative Study of Information Capacity
for Biophysical and Silicon Photoreceptors,” Proceedings, International
Symposium on Circuits and Systems (ISCAS 2000), Geneva, Switzerland,
June 2000.
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P.
Abshire and A. G. Andreou, “Information Capacity and Efficiency of Blowfly
Photoreceptors,” Proceedings of the Fourth International Conference
on Cognitive and Neural Systems, Boston University, May 2000; “Relating
information capacity to a biophysical model for blowfly retina,” Proceedings
of the 1999 Computational Neuroscience Meeting, Pittsburgh, PA, July
1999; “Relating Information Capacity to a Biophysical Model for Blowfly
Retina,” Proceedings of the 1999 International Joint Conference on Neural
Networks, Washington, DC, July 1999; “Information Capacity of the Blowfly
Retina,” Proceedings of the 33rd Conference on Information Sciences
and Systems, Baltimore, MD, Vol. II, March, 1999.
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M.
Cohen, P. Abshire, J. Lubkin, and G. Cauwenberghs, “Analog Learning Fuzzy
ART Microchips,” in T. Serrano, B. Linares, and A. G. Andreou, Adaptive
Resonance Theory Microchips, Norwell MA: Kluwer Academic, 1998.
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M.
Cohen, P. Abshire, and G. Cauwenberghs, “Mixed-Mode VLSI Implementation
of Fuzzy ART,” Proceedings, International Symposium on Circuits and
Systems (ISCAS98), Monterey, CA, June 1998; “Current-Mode VLSI Fuzzy
ART Processor with On-Chip Learning,” Vision, Recognition, Action: Neural
Models of Mind and Machine, Boston University, May 1997; “Mixed-Mode
VLSI Architecture Implementing Fuzzy ART,” Conference on Information
Systems and Sciences (CISS), Johns Hopkins University, Baltimore, MD,
March 1997.
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P.
Abshire, W. Combs, and D. Srinivasan, “Neural Networks for Detecting Far-Field
P-Waves,” Medtronic 14th Annual Science & Technology Conference,
Minneapolis, MN, Nov 1995; W. Sun, E. Panken, P. Abshire, and W. Combs,
“Use of Adaptive and Morphological Algorithms for Far-Field P-Wave Detection,”
Medtronic 13th Annual Science & Technology Conference, Minneapolis,
MN, Nov 1994.
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P.
Abshire and A. G. Andreou, “Relating Information Capacity to a Biophysical
Model of the Blowfly Retina,” Technical Report JHU/ECE-98-13, Dept.
of Elec. and Comp. Eng., Johns Hopkins Univ., Baltimore, MD, 1998.
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