Sidharth defended his Ph.D. from UIUC in November 2022. He now works at Amazon, UK.
Check out my homepage for more updates and resources such as videos, slides and posters!

I have been a research assistant and PhD candidate in the Electrical and Computer Engineering at the University of Illinois at Urbana-Champaign (UIUC) since 2017. I am advised by Ivan Dokmanić and we are affiliated with the Coordinated Science Laboratory.

I worked on developing machine learning and signal processing algorithms and methods for solving image reconstruction problems. Imaging through media which scatters light such as paint, seismic imaging and xray medical imaging have been particularly fun applications to work on.

I graduated from Churchill College at the University of Cambridge with bachelor's and master's degrees in Engineering in 2014. Between Cambridge and UIUC I worked at Samsung Research in South Korea where I designed new APIs for smartphones, smart TV, smartwatches and other IoT devices.

Elsewhere on the internet:

Research interests

  • Machine learning and signal processing for inverse problems

  • Efficient and accurate phase retrieval algorithms

  • Signal processing for rapid machine learning on hardware

Publications

2021

Total least squares phase retrieval
and
IEEE Transactions on Signal Processing, 2021
 
@article{gupta2021total,
  title={Total least squares phase retrieval},
  author={Gupta, Sidharth and Dokmani{\'c}, Ivan},
  journal={IEEE Transactions on Signal Processing},
  volume={70},
  pages={536--549},
  year={2021},
  publisher={IEEE}
}

2020

Improving the affordability of robustness training for DNNs
, and
Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, 2020
 
@inproceedings{gupta2020improving,
  title={Improving the affordability of robustness training for DNNs},
  author={Gupta, Sidharth and Dube, Parijat and Verma, Ashish},
  booktitle={Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops},
  pages={780--781},
  year={2020}
}
Solving complex quadratic systems with full-rank random matrices
, and
IEEE Transactions on Signal Processing, 2020
 
@article{huang2020solving,
  title={Solving complex quadratic systems with full-rank random matrices},
  author={Huang, Shuai and Gupta, Sidharth and Dokmani{\'c}, Ivan},
  journal={IEEE Transactions on Signal Processing},
  volume={68},
  pages={4782--4796},
  year={2020},
  publisher={IEEE}
}
Fast optical system identification by numerical interferometry
, , and
ICASSP 2020-2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2020
 
@inproceedings{gupta2020fast,
  title={Fast optical system identification by numerical interferometry},
  author={Gupta, Sidharth and Gribonval, R{\'e}mi and Daudet, Laurent and Dokmani{\'c}, Ivan},
  booktitle={ICASSP 2020-2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},
  pages={1474--1478},
  year={2020},
  organization={IEEE}
}
Parsimonious seismic tomography with Poisson Voronoi projections: Methodology and validation
, , , , and
Seismological Research Letters, 2020
 
@article{fang2020parsimonious,
  title={Parsimonious seismic tomography with Poisson Voronoi projections: Methodology and validation},
  author={Fang, Hongjian and Van Der Hilst, Robert D and de Hoop, Maarten V and Kothari, Konik and Gupta, Sidharth and Dokmani{\'c}, Ivan},
  journal={Seismological Research Letters},
  volume={91},
  number={1},
  pages={343--355},
  year={2020},
  publisher={Seismological Society of America}
}

2019

Random mesh projectors for inverse problems
, , and
International Conference on Learning Representations, 2019
URL 
@inproceedings{kothari2018random,
  title={Random mesh projectors for inverse problems},
  author={Konik Kothari* and Sidharth Gupta* and Maarten v. de Hoop and Ivan Dokmani{\'c}},
  booktitle={International Conference on Learning Representations},
  year={2019},
  url={https://openreview.net/forum?id=HyGcghRct7},
}
Don't take it lightly: Phasing optical random projections with unknown operators
, , and
(NeurIPS) Advances in Neural Information Processing Systems, 2019
More 
@article{gupta2019don,
  title={Don't take it lightly: Phasing optical random projections with unknown operators},
  author={Gupta, Sidharth and Gribonval, Remi and Daudet, Laurent and Dokmani{\'c}, Ivan},
  projectpage = {http://sada.dmi.unibas.ch/en/research/pr-optical-computing},
  journal={(NeurIPS) Advances in Neural Information Processing Systems},
  volume={32},
  pages={14855--14865},
  year={2019}
}
Solving complex quadratic equations with full-rank random Gaussian matrices
, and
ICASSP 2019-2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019
 
@inproceedings{huang2019solving,
  title={Solving complex quadratic equations with full-rank random Gaussian matrices},
  author={Huang, Shuai* and Gupta, Sidharth* and Dokmani{\'c}, Ivan},
  booktitle={ICASSP 2019-2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)},
  pages={5596--5600},
  year={2019},
  organization={IEEE}
}