Alfredo Nava-Tudela
Director of Scientific Computing
Institute for Physical Science and Technology
University of Maryland, College Park
Academic life
I obtained my Ph.D. in Applied Mathematics & Statistics, and Scientific Computation from the AMSC program at the University of Maryland, College Park. My area of concentration was Scientific Computation, and my work focused on harmonic analysis and its applications. [Disseration, Dissertation defense slides]
I earned a Licenciatura in Mathematics from Universidad Nacional Autónoma de México, and a Master of Arts in Applied Mathematics from the University of Maryland, College Park.
The Norbert Wiener Center for Harmonic Analysis and Applications
I had the privilege and fortune of having John J. Benedetto as my Ph.D. advisor. He is the director of The Norbert Wiener Center for Harmonic Analysis and Applications (NWC). He also directed my M.A. degree work on "Signal processing for health monitoring of jet engines."
I was a post doctoral fellow of the NWC from July 1st, 2012 to June 30, 2013. I continue to collaborate on research projects with faculty of the NWC.
Research interests
Quantum Computing. I developed, in collaboration with Aaron Lott, the curriculum for the Foundations of Quantum Computing course.
Applications of machine learning to image processing. In particular, applications to super-resolution, inpainting, image segmentation and discovery.
Sparse representations of signals. In specific, implementation, validation and testing of the Orthogonal Matching Pursuit (OMP) and Basis Pursuit (BP) algorithms. I have coded diverse implementations of these algorithms to study image compression, inpainting, and noise removal.
Another area of study that I am interested in is the discovery and study of properties of Constant Amplitude and Zero-Autocorrelation sequences (CAZACs) for use in telecommunications.
https://orcid.org/0000-0002-7958-9836Awards
I obtained First Prize in the poster session "Pushing the Boundaries of Science" at the University of Maryland Graduate Research Interaction Day (GRID) 2012 presenting a poster of my work on "Image representation and compression via sparse solutions of systems of linear equations." [Poster for GRID, Poster for NWC]
Publications
- Predictive refinement methodology for compressed sensing imaging by Alfredo Nava-Tudela. arXiv preprint, February 2020.
- A recommender system to restore images with impulse noise by Alfredo Nava-Tudela. arXiv preprint, February 2017.
- A frame reconstruction algorithm with applications to magnetic resonance imaging in Frames and Other Bases in Abstract and Function Spaces, Novel Methods in Harmonic Analysis, Volume 1, Pesenson, I., Le Gia, Q.T., Mayeli, A., Mhaskar, H., Zhou, D.-X., Editors. Applied and Numerical Harmonic Analysis series, Birkhäuser. July, 2017. ISBN 978-3-319-55550-8.
- Sampling in image representation and compression in New Perspectives on Approximation and Sampling Theory, Zayed, A., Schmeisser G., Editors. Springer International Publishing, 2014. DOI: 10.1007/978-3-319-08801-3\_7.
- Recovering a Representative Conformational Ensemble from Underdetermined Macromolecular Structural Data by Konstantin Berlin, Carlos A. Castañeda, Dina Schneidman-Duhovny, Andrej Sali, Alfredo Nava-Tudela, and David Fushman, Journal of the American Chemical Society, 135 (44), pp. 16595-16609, 2013.
- Playing with Asimina triloba (pawpaw): a species to consider when enhancing riparian forest buffer systems with non-timber products by Luisa Fernanda Robles-Diaz-de-León and Alfredo Nava-Tudela, Ecological Modelling, Vol. 112, Issues 2-3, pp. 169-193, Oct. 15, 1998.
- Modelling dangerous ideas: The energetics of revolution by Patrick Kangas, Alfredo Nava-Tudela, and Luisa Fernanda Robles-Diaz-de-León, International Society for the Systems Sciences. Proceedings of the 42nd Annual Meeting, Atlanta, GA, July 18-25, 1998.
Work
Institute for Physical Science and Technology
I am the Director of Scientific Computing for the Institute for Physical Science and Technology (IPST) at the University of Maryland, College Park. In that capacity, I
- assist faculty with scientific computing tasks and questions,
- maintain multiple servers that provide critical services to IPST,
- chair the IPST Computing Committee,
- participate in the IPST Communications Committee,
- serve as liaison to the Division of Information Technology (DivIT),
- supervise our IT student support team, and
- provide consulting, advise, and support services to our faculty and staff with IT related matters.