Publications

Papers

D. Johnson, I. L. Markov, “Efficient Multi-stage Inference on Tabular Data.” AutoML, Sep. 2023, https://arxiv.org/pdf/2303.11580.pdf.

D. Johnson, “Addressing Discontinuous Root-Finding for Subsequent Differentiability in Machine Learning, Inverse Problems, and Control.” Stanford University PhD Thesis, June 2023, https://searchworks.stanford.edu/view/14783501.

D. Johnson, R. Fedkiw, “Addressing Discontinuous Root-Finding for Subsequent Differentiability in Machine Learning, Inverse Problems, and Control.” Preprint, May 2023, https://arxiv.org/pdf/2306.12413.pdf.

D. Johnson, et al., “Software-based Automatic Differentiation is Flawed.” Preprint, May 2023, https://arxiv.org/pdf/2305.03863.pdf.

Z. Geng, D. Johnson, R. Fedkiw, “Coercing Machine Learning to Output Physically Accurate Results.” Journal of Computational Physics, Nov. 2019, https://doi.org/10.1016/j.jcp.2019.109099.

D. Johnson, E. A. Huerta, R. Hass, “Python Open Source Waveform Extractor (POWER): An open source, Python package to monitor and post-process numerical relativity simulations.” Classical and Quantum Gravity, Nov. 2017, https://doi.org/10.1088/1361-6382/aa9cad.

D. Johnson, K. Wegley, R. Rizkallah, A. Shone, D. Andruczyk, “HIDRA Control System (HCS): An open source, LabVIEW-based program to control the Hybrid Illinois Device for Research and Applications.” Fusion Engineering and Design, Feb. 2017, https://doi.org/10.1016/j.fusengdes.2018.02.016.

A. Rebei, E. A. Huerta, S. Wang, S. Habib, R. Haas, D. Johnson, D. George, “Fusing numerical relativity and deep learning to detect higher-order multipole waveforms from eccentric binary black hole mergers.” Physical Review D, June 2019, https://doi.org/10.1103/PhysRevD.100.044025.

E. A. Huerta, R. Haas, S. Habib, A. Gupta, A. Rebei, V. Chavva, D. Johnson, S. Rosofsky, E. Wessel, B. Agarwal, D. Luo, W. Ren, “Physics of eccentric binary black hole mergers: A numerical relativity perspective.” Preprint, Sep. 2019, https://arxiv.org/pdf/1901.07038.pdf.

E. A. Huerta, C. J. Moore, P. Kumar, D. George, A. Chua, R. Haas, E. Wessel, A. M. Holgado, D. Johnson, D. Glennon, A. Rebei, J. R. Gair, and H. P. Pfeiffer, “ENIGMA: Eccentric, on-spinning, Inspiral Gaussian-process Merger Approximant for the characterization of eccentric binary black hole mergers.” Physical Review D, Jan. 2018, https://doi.org/10.1103/PhysRevD.97.024031.

R. Rizkallah, D. Andruczyk, A. Shone, D. Johnson, Z. Jeckell, S. Marcinko, Z. Song, D. Curreli, F. Bedoya, A. Kapat, J. P. Allain, M. Christenson, M. Szott, S. Stemmley, H. Sandefur, D. N. Ruzic, R. Maingi, J. Hu, G. Zuo, J. Schmitt, “Latest Results from the Hybrid Illinois Device for Research and Applications (HIDRA).” IEEE Transactions on Plasma Science, June 2018, https://doi.org/10.1109/TPS.2018.2838571.

Conference Presentations

D. Johnson, E. A. Huerta, R. Hass, “Python Open Source Waveform ExtractoR (POWER): An open source, python package to post-process numerical relativity simulations.” Paper presented at the 2017 North American Einstein Toolkit School and Workshop at NCSA, Aug. 2017.

D. Andruczyk, Z. Song, N. Chopra, D. Johnson, A. Shone, D. Ruzic, J. P. Allain, D. Curreli, HIDRA Team, “First Results and Future Plans on HIDRA,” in APS Meeting Abstracts, Oct. 2016.

R. Rizkallah, D. Andruczyk, Z. Jeckell, A. Shone, D. Johnson, J. P. Allain, D. Curreli, D. Ruzic, The HIDRA Team, “Latest results and developments from the Hybrid Illinois Device for Research and Applications,” in APS Meeting Abstracts, Oct. 2017.

C. Grattoni, R. Andrews, D. Johnson, K. Krout, M. Nicholson, R. Rajan, B. Xie, “Wolfram Demonstrations: A Capstone Project for High School Students.” Presentation in the Wolfram Technology Conference 2016, Champaign IL, Oct. 2016.

D. Andruczyk, R. Rizkallah, S. Marcinko, D. Johnson, A. Shone, Z. Jeckell, M. Christenson, M. Szott, S. Stemley, B. Holybee, R. Maingi, J. Hu, G. Zuo, J. P. Allain, D. Curreli, D. Ruzic, “Overview of the Illinois Hybrid Device for Research and Applications (HIDRA) Project.” Presentation in the 16th Latin American Workshop on Plasma Physics (LAWPP), Mexico City, Mexico, June 2017.

D. Johnson, “Modeling Black Hole Mergers.” Presentation for the National Center for Supercomputing Applications: Students Pushing Innovation project, July 2017.

Posters

D. Johnson, “Modeling and Characterizing Black Hole Mergers.” Poster session presented at the National Center for Supercomputing Applications: Student Pushing Innovation, Urbana, IL, Aug. 2017.

N. Chopra, D. Johnson, J. Park, B. Anderson, “Development and Calibration of a Microwave-based Plasma Heating Source for the HIDRA Toroidal Fusion Device.” Poster session presented at the Illinois Undergraduate Research Week Symposium, Urbana, IL, April 2016.

Interviews and Media

“NCSA Intern Receives Highest Honor from Illinois College of Engineering”, Press Release, http://www.ncsa.illinois.edu/news/story/ncsa_intern_receives_highest_honor_from_illinois_college_of_engineering.

“NCSA SPIN Intern Daniel Johnson Published in Classical and Quantum Gravity”, Press Release, http://www.ncsa.illinois.edu/news/story/ncsa_spin_intern_daniel_johnson_published_in_emclassical_and_quantum_gravit.

“Students who followed different paths to Illinois CS named Knights of St. Patrick”, Press Release, https://cs.illinois.edu/news/students-who-followed-different-paths-illinois-cs-named-knights-st-patrick.

“NCSA Group wins original undergrad research award at Engineering Open House”, Press Release, http://www.ncsa.illinois.edu/news/story/ncsa_group_win_original_undergrad_research_award_at_engineering_open_house.

“HIDRA Under Control!”, Press Release, http://cpmi.illinois.edu/2017/08/11/hidra-under-control/.

“Students Gain Valuable Experience through Undergraduate Research”, Press Release, https://npre.illinois.edu/news/students-gain-valuable-experience-through-undergraduate-research.