Short Biography
I'm currently a researcher at the
Laboratory for Mathematical
Neuroscience of
Prof. Shun-ichi
Amari at the RIKEN Brain Science
Institute in Wako-shi, Japan.
I obtained my PhD degree in electrical engineering at
the Swiss Polytechnical Institute of Technology
(ETH) in Zurich in December 2005. My thesis advisor was
Prof. Hans-Andrea Loeliger.
I was a teaching and research assistant at the
Signal and Information Processing Laboratory
(ISI) of the Department of Information
Technology and Electrical Engineering at ETH Zurich from 2000 to 2005.
I received the engineering physics degree from the
University of Ghent in 2000. From 1999 to
2000, I was an exchange student at ETH. I did my master's thesis at the
Institute of Neuroinformatics in Zurich.
I was a visiting researcher at the MIT
Media Lab (Physics and Media
Group) in Fall 2003 and the University of Ghent (Digital
Communications Research Group) in January 2004.
I was an intern at the
Mitsubishi Electric Research Lab (Cambridge,
MA) in Spring
2004 under supervision of Dr. Jonathan
Yedidia.
Research Interests
- Information theory and its applications in communications, signal processing
and machine learning
- Error correcting codes
- Digital signal processing in communications, biomedical
applications, wearable computing systems and other fields
- Graphical models ("factor graphs") for coding and signal
processing
- Implementation of signal processing algorithms in analog electrical
circuits
- Theoretical neuroscience (in particular, aspects related to information
theory, coding, and signal processing)
- Quantum computation
- Machine learning (Monte Carlo methods, kernel machines, neural networks,
statistical learning theory)
- Theoretical statistics (information geometry, higher-order asymptotic
theory)
Submitted Papers
- J. Dauwels,
Improving and validating Cramér-Rao bounds through higher-order
asymptotic estimation theory: a case study,
submitted to 2006 IEEE Int. Symp. on Information Theory and its
Applications (ISITA), accepted. for publication.
Recent Papers
- B. Vigoda, J. Dauwels, M. Frey, N. Gershenfeld, T. Koch, H.-A. Loeliger,
and P. Merkli
Synchronization of pseudo-random signals by forward-only message
passing with application to electronic circuits,
IEEE Trans. Inform. Theory, accepted for publication.
PDF
file, 252 KB.
- J. Dauwels, Sascha Korl, and H.-A. Loeliger,
Particle methods as message passing,
Proceedings of 2006 IEEE Int. Symp. Information Theory
PDF file, 84 KB.
- J. Dauwels and Sascha Korl,
A numerical method to compute Cramér-Rao-type bounds for challenging
estimation problems,
International Conference on Acoustics, Speech, and Signal Processing
(ICASSP 2006), accepted for publication. (Student Paper Contest Winner)
PDF file, 68 KB.
- T. Ott, J. Dauwels, and R. Stoop,
Sequential clustering by loopy belief propagation,
Proceedings of the European Conference on Circuit Theory and Design, 2005.
- J. Dauwels,
Numerical computation of the capacity of continuous memoryless channels,
Proceedings of the 26th Symposium on Information Theory in the BENELUX,
Brussels, Belgium, May 19 -20, 2005, pp. 221-228.
PDF file, 857 KB.
- J. Dauwels, S. Korl, and H.-A. Loeliger,
Expectation maximization for phase estimation,
Proceedings of the Eighth International Symposium on Communication Theory and
Applications, 2005.
PDF file, 146 KB.
- J. Dauwels, S. Korl, and H.-A. Loeliger,
Steepest descent on factor graphs,
Proceedings of the IEEE ITSOC Information Theory Workshop 2005 on Coding and
Complexity.
PDF file, 132 KB.
- J. Dauwels, S. Korl, and H.-A. Loeliger,
Expectation maximization as message passing,
Proceedings of IEEE Int. Symp. Information Theory, 2005.
PDF file, 92 KB.
- J. Dauwels,
Computing Bayesian Cramér-Rao bounds,
Proceedings of the
IEEE Int. Symp. Information Theory, 2005.
PDF file, 120 KB.
- J. Dauwels, H.-A. Loeliger, P. Merkli, and M. Ostojic,
On
Markov structured summary propagation and LFSR synchronization,
Proc. 42nd Allerton Conf. on Communication, Control, and Computing, (Allerton
House, Monticello, Illinois), Sept. 29 - Oct. 1, 2004. (invited paper)
PDF file, 196 KB.
Recent Talks (besides paper
presentations at conferences)
- Factor graph-based inference: algorithms and bounds,
Workshop on Machine Learning and Optimization, The Institute of
Statistical Mathematics, Tokyo, Japan, August 16th, 2006.
-
Computation of the capacity of continuous
memoryless channels and the rate distortion function of continuous memoryless
sources,
2006 Hawaii, IEICE, and SITA Joint Conference on Information Theory,
Nara, Japan, May 23-26, 2006.
- On applications of information geometry to signal processing, digital
communications, and related areas,
The 5th Workshop on Differential Geometry and Information Geometry, Nagoya
University, Japan, February 17-18, 2006.
-
On Information-geometric aspects of
graphical models and kernel machines, NIPS Workshop, Whistler, Canada,
December 9-10, 2005.
PDF file, 207KB.
-
On various applications of message passing on factor graphs, MIT (CSAIL/RLE/LIDS),
Cambridge, MA, December 13, 2005.
PDF file, 3.775KB.
-
On Cramér-Rao-bound paradoxes (and how to
circumvent them), University of Gent, Belgium, June 03, 2005.
-
Phase estimation by EM and steepest descent,
University of Gent, Belgium, May 24, 2005.
University of Louvain-la-Neuve (UCL), Belgium, May 23, 2005.
- RIKEN Brain Science Institute, Saitama, Japan, Jan 06, 2005.
Applications of graphical models in signal processing,
PDF file, 4.290 KB.
An efficient algorithm to compute Cramér-Rao bounds in graphical models,
PDF file, 1.541 KB.
- An analog circuit that locks
onto a pseudo-noise signal, Kanazawa Institute of Technology, Japan,
December 16, 2004.
- Message Passing, Factor Graphs and Analog
Circuits, School and Conference on Fundamental Aspects of Complexity, Abdus
Salam
International Center for Theoretical Physics, Trieste, Sept. 6-9,
2004.
- An analog circuit that locks
onto a pseudo-noise signal, Workshop on Statistical Aspects of Electronic Systems, Lavin,
Switzerland, October 28-30, 2004.
- Towards Quantum Algorithms for
Inference,
MediaLab, MIT, May 18, 2004.
- Turbo Signal Processing,
University of Gent, Sept. 11, 2003.
PPT
file (in Dutch!), 4.431 KB.
- Loeliger's Universe,
MediaLab, MIT, Dec. 4, 2003.
Recently Attended Workshops (without talk)
- Quantum Systems for Information
Technology Workshop, Flums, Switzerland, March 5-7, 2004.
Tutorials
- Kernel machines (presented at ISI, 04/11/2004)
PDF
file, 2.265 KB.
- Posterior Cramér-Rao bounds for estimation in graphical models
(presented at ISI, 31/03/2005)
PDF
file, 2.491 KB.
PhD Thesis
Selected Older Papers
-
J. Dauwels and H.-A. Loeliger,
Computation of information rates by particle methods,
Proc. 2004 IEEE Int. Symp. Information Theory, Chicago, IL, USA,
June 27 - July 2, 2004, p. 178.
PDF
file, 120 KB.
-
J. Dauwels, H. Wymeersch, H.-A. Loeliger and M. Moeneclaey,
Phase Estimation and Phase Ambiguity Resolution by Message Passing,
Proc. 11th International Conference on Telecommunications and Networking,
pp. 150-155, Fortaleza, Brazil, August 1-6, 2004.
PDF
file, 158 KB.
-
J. Dauwels and H.-A. Loeliger,
Phase estimation by message passing,
Proc. 2004 IEEE Int. Conf. on Communications, June 20-24,
Paris, France, pp. 523-527, 2004.
PDF
file, 152 KB.
-
H.-A. Loeliger, J. Dauwels, V.M. Koch, and S. Korl,
Signal processing with factor graphs: examples,
Proc. First Int. Symp. on Control, Communications and Signal
Processing, March 21-24, Hammamet, Tunisia, pp. 571-574, 2004.
(invited paper)
PDF
file, 152 KB.
-
J. Dauwels, H.-A. Loeliger, P. Merkli, and M. Ostojic,
On structured-summary propagation, LFSR synchronization,
and low-complexity trellis decoding,
Proc. 41st Allerton Conf. on Communication, Control, and
Computing, (Allerton House, Monticello, Illinois), Oct. 1-3, 2003,
pp. 459-467. (invited paper)
PDF
file, 216 KB.
Old Own Projects
Teaching
Last modified: April 03, 2006
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