Linh Nguyen is an Associate Professor at the Department of Mathematics, University of Idaho. His research interests include: Inverse Problems/ Computational Imaging, Data Assimilation, and Machine Learning. In the past, he also worked on nonlinear PDEs. He can be contacted via email at lnguyen@uidaho.edu or on phone at 1-208-885-6629.

NEWS

2018

- Two research advisees, Jonah Bartrand and Tuan Pham, are the recipients of the Dean's Awards for undergraduate and graduate students. Congratz to Jonah and Tuan!
- Our Data Science Competition is ending soon. Submit your work fast to beat the deadline!
- Our article, A New Sparsification and Reconstruction Strategy for Compressed Sensing Photoacoustic Tomography, has been accepted for publication on the Journal of Acoustic Society of America.
- We proudly annouce the first ever campus-wide Data Science Competition:
- I have been invited to the Oberwolfach workshop “Tomographic Inverse Problems: Theory and Applications”, Jan 27 - Feb 2, 2019.
- Eli Smith has been awarded the Hills fellowship to work on the projection “Effects of sound on binocular vision” under my supervision. Congrats, Eli!
- Our team (Linh Nguyen, Frank Gao, Camden Clark, and Daniel Furman) will participate in a Data Carpentry workshop, eScience Institute, Seattle, March 22-23.
- I will attend the workshop “New Deep Learning Techniques” at IPAM, Feb 5-9.

2017

- Nov 30: My undergrad researcher, Jonah Bartrand, has been awarded a grant from the Office of Undergrad Research to work on his project “High Performace Computing for Photoacoustic Tomography”. Congratz, Jonah!
- Nov 28: Our article "Analysis of the Linearized Problem of Quantitative Photoacoustic Tomography” is accepted for publication on SIAM Journal on Applied Mathematics.
- I will coteach a special topic course on Mathematics of Deep Learning (with Frank Gao) in the spring of 2018.
- Sept 27: Our minisymposium on “Machine Learning Techniques for Image Reconstruction” is accepted at SIAM Imaging Conference 2018. See you in Bologna, June 2018.
- Oct 14: My undergraduate researcher, Jonah Bartrand, presented his work on Python implemention of iterative methods for PAT at Northwest Undergraduate Mathematics Symposium (NUMS).
- Setp 14: Our paper on Time reversal method for thermoacoustic acoustic tomography in elastic media: convergence with sharp observation time is accepted for publication on Applied Mathematics Letters.
- Together with Markus Haltmeier, we submitted a proposal for a minisymposium on “Machine Learning Techniques for Image Reconstruction” at SIAM Imaging Conference 2018.
- I am running a Python Data Analysis club, which meets on every Wednesday at 4:30-5:30 PM. Contact me if you are interested.
- August 29: Our paper with Markus Haltmeier and Richard Kowar on Iterative Methods for Photoacoustic Tomography in Attenuating Media is accepted for publication on Inverse Problems.
- August 13: I am now an associate professor with tenure.
- Check out our paper with Vitaly Katsnelson on Arxiv Time reversal method for thermoacoustic acoustic tomography in elastic media: convergence with sharp observation time
- Check out our paper on Arxiv “Iterative Methods for Photoacoustic Tomography in Attenuating Acoustic Media”
- Check out our minisymposium Inverse problems for Radiative Transfer Equation and Broken Ray Approximation at the conference 100 Years of Radon Transform.
- March 28: I gave a talk at the minisymposium Analytic Aspects of Radon Transform at the conference 100 Years of Radon Transform.
- March 21: My paper with Markus Haltmeier on “Analysis of Iterative Method in Photoacoustic Tomography with Variable Speed” has been accepted on SIAM Journal of Imaging Sciences.
- Check out our new paper on Arxiv "Analysis of the Linearized Problem of Quantitative Photoacoustic Tomography"

2016

- Nov 24: My paper with Markus Haltmeier on “Iterative Method for Photoacoustic Tomography with Variable Speed” has been submitted. See the preprint on arxiv
- Nov 8: I gave an invited talk at the Colloquium, Department of Mathematics, University of North Carolina at Charlotte
- Nov 5: I gave an invited talk at the Colloquium, Department of Mathematics, Georgetown University
- Oct 27: I gave an invited talk at Inverse Problems Seminar at Colorado State University
- Oct 3: I will organize (jointly with Markus Haltmeier) the mini-symposium on “Inverse problems for Radiative Transfer Equation and Broken Ray Approximation” at 100 Years of Radon Transform conference
- Nov 31: My paper with Julianne Chung on “Motion Estimation and Correction in Photoacoustic Tomographic Reconstruction” has been accepted for publication on SIAM Journal of Imaging Science
- Sept 16: I gave an invited talk at miniworkshop “Current and future trends in computed tomography"
- July 5: I received an NSF grant on “Mathematics of Tomography"
- June 3: My paper with Leonid Kunyansky was published on SIAM Journal of Imaging Sciences (Vol 9, Issue 2)
- May 23-26: I attended the SIAM Conference on Imaging Sciences in Albuquerque. My talk “A dissipated time-reversal technique for photo-acoustic tomography” was given in the minisymposium “Recent Developments in Hybrid Inverse Problems and Imaging”.
- May 27: My paper "On the strength of streak artifacts in filtered-backprojection reconstructions for limited angle weighted X-ray transform” was accepted for publication on Journal of Fourier Analysis and Applications.
- March 9: I gave a talk at the Applied Inverse Problems seminar at Texas A&M University.
- Feb: My paper "Range Description for a Spherical Mean Transform on Spaces of Constant Curvatures” was pulished on Journal d’Analyses Mathematique (Vol. 128, Iss.1, pp. 191-214)
- Feb 8: I pitched my work with Daniel Schmalz on “Simultaneous Image Reconstruction and Deblurring in Photo-acoustic Tomography” on Vandals Idea Project Event.

2015

- Dec: My paper with Lyudmyla Barannyk and Juergen Frikel "
*On artifacts in limited data spherical Radon transform: curved observation surfaces”*was published on Inverse Problems (Vol 32, No. 1) - Sep 29 - Oct 4: I visited Francois Monard at the University of Michigan at Ann Arbor.
- Sep 10: I gave a talk on “
*Mathematics of Thermo-acoustic/Photo-acoustic Tomography*” at the Math Colloquium, University of Idaho. - Jul 19-21: I visited Julianne Chung at Virginia Tech. We worked on algorithms for TAT with moving object.
- Jul 12-17: I was an invited speaker at the workshop on “Computational and Analytical Aspects of Image Reconstruction,” ICERM, Brown University. My talk is titled “A new time-reversal technique for Thermo-acoustic Tomography in a Cavity.”
- Jun 23-26: I visited the Computational Bioimaging Laboratory at the Washington University at St. Louis to work with Mark Anastasio and his group.
- Jun 14-19: I was an invited speaker at the BIRS Workshop on “Hybrid Methods in Imaging”, Banff International Research Station, Canada. My talk is “
*On the artifacts in a limited data spherical Radon transform.*” - Jun 8-12: I was an invited speaker at the workshop on “Geometric Inverse Problems” at the Institute Henri Poincare, Paris, France. The title of my talk is “
*On the streak artifacts in limited angle computed X-ray tomography.*” - Jun 1-7: I visited the Applied Mathematics Group at the University of Innsbruck, Austria.
- May 25-29: I was an invited speaker at the conference on “Applied Inverse Problems” in Helsinki, Finland. My talk is “
*On the artifacts in a limited data spherical mean transform*” at the Special section on “*Current developments in tomography: from theory to algorithms.*”