Atefeh Khoshkhahtinat, Ali Zafari, Jeremy A. Grajeda,
Piyush M. Mehta, Nasser Nasrabadi, Laura E. Boucheron, Barbara J. Thompson,
Daniel da Silva, Michael F. Kirk. "Neural-based Video Compression on Solar Dynamics
Observatory Images, "
IEEE Transactions on Aerospace and Electronic System (TAES), under review, 2023.
Ali Zafari, Atefeh Khoshkhahtinat, Jeremy A. Grajeda,
Piyush M. Mehta, Nasser Nasrabadi, Laura E. Boucheron, Barbara J. Thompson,
Daniel da Silva, Michael F. Kirk. "Neural-based Compression Scheme for Solar
Image Data,"
IEEE Transactions on Aerospace and Electronic System (TAES), in revision, 2023
Alfredo Cruz,
Piyush M. Mehta, Steven K. Morley, Humberto C. Godinez, "Reduced-Order
Probabilistic Emulation of Physics-Based Ring Current Models: Application on
RAM-SCB Particle Flux,"
Space Weather, under review, 2023.
Joshua Daniell,
Piyush M. Mehta, "Probabilistic Solar Proxy Forecasting with Neural
Network Ensembles, "
Space Weather, e2023SW003675, 21(9), 2023
https://doi.org/10.1029/2023SW003675
Homayon Aryan, Jacob Bortnik, W. Kent Tobiska,
Piyush M. Mehta, Rashmi Siddalingappa, "Enhanced radiation levels at
aviation altitudes and their relationship to plasma waves in the inner magnetosphere,"
Space Weather, accepted, 2023
Sean Bruinsma, Thierry Dudok de Wit, Tim Fuller-Rowell, Katherine Garcia-Sage,
Piyush M. Mehta, et. al. "Thermosphere and Satellite Drag,"
Advances in Space Research, in-press, 2023.
https://doi.org/10.1016/j.asr.2023.05.011
Daniel R. Weimer,
Piyush M. Mehta, Richard J. Licata, W. Kent Tobiska, "Global Variations
in the Time Delays Between Polar Ionospheric Heating and the Neutral Density
Response,"
Space Weather, e2022SW003410, 21(4), 2023.
https://doi.org/10.1029/2022SW003410
W. Kent Tobiska, Bruce R. Bowman, S. David Bouwer, Alfredo Cruz, Kaiya Wahl, Marcin
D. Pilinski,
Piyush M. Mehta, and Richard J. Licata, "
The SET HASDM Density Database," Space Weather, 2021, 19(4).
Atefeh Khoshkhahtinat, Ali Zafari,
Piyush M. Mehta, Nasser M. Nasrabadi,"Laplacian-guided Entropy Model
in Neural Codec with Blur-dissipated Synthesis,"IEEE/CVF Winter Conference on
Applications of Computer Vision (WACV), under review, 2023.
Atefeh Khoshkhahtinat, Ali Zafari,
Piyush M. Mehta, Nasser M. Nasrabadi, Barbara J. Thompson, Daniel Da
Silva, Michael S. Kirk,"Context-aware Neural Video Compression on Solar Dynamics
Observatory,"22nd IEEE International Conference on Machine Learning and Applications
(ICMLA), Jacksonville, FL, December 2023.
Ali Zafari, Atefeh Khoshkhahtinat,
Piyush M. Mehta, Nasser M. Nasrabadi, Barbara J. Thompson, Daniel Da
Silva, Michael S. Kirk,"Multi-spectral Entropy Constrained Neural Compression
of Solar Imagery,"22nd IEEE International Conference on Machine Learning and
Applications (ICMLA), Jacksonville, FL, December 2023.
Ali Zafari, Atefeh Khoshkhahtinat,
Piyush M. Mehta, Mohammad S. E. Saadabadi, Mohammad Akyash, Nasser M.
Nasrabadi,"Frequency Disentangled Features in Neural Image Compression,"22nd
IEEE International Conference on Machine Learning and Applications (ICMLA), Jacksonville,
FL, December 2023.
Atefeh Khoshkhahtinat, Ali Zafari,
Piyush M. Mehta, Mohammad Akyash, Hossein Kashiani, Nasser M. Nasrabadi,
"Multi-Context Dual Hyper-Prior Neural Image Compression,"22nd IEEE International
Conference on Machine Learning and Applications (ICMLA), Jacksonville, FL, December
2023.
Nathaniel Michek,
Piyush M. Mehta, Wade Huebsch, "Development of a Free-Flight Parameter
Estimation Technique Using Physics-Informed Neural Networks," 44th IEEE Aerospace
Conference, 2023.
Ali Zafari, Atefeh Kho
Piyush M. Mehta
, Nasser M. Nasrabadi, Barbara J. Thompson, Daniel da Silva, Michael S. F. Kirk,
"Attention-Based Generative Neural Image Compression on Solar Dynam 21st IEEE
International Conference on Machine Learning and Applications
Conference Proceedings (other publications)
Smriti Paul, Richard J. Licata, and
Piyush M. Mehta,"Advanced ensemble modeling method for space object
state prediction accounting for uncertainty in atmospheric density, " AIAA/AAS
Spaceflight Mechanics Conference, Austin, TX, January 2023.
https://doi.org/10.48550/arXiv.2210.16992
Richard J. Licata and
Piyush M. Mehta, and Christina Kay “
Data-Driven Framework for Space Weather Modeling with Uncertainty Treatment towards
Space Situational Awareness and Space Traffic Management,” AAS 19-603,
Astrodynamics Specialist Conference, Portland, ME, August, 2019.
Piyush M. Mehta, Valerie Bernstein, and Delores Knipp “
On deriving Self-Consistent, High-accuracy Mass Density Measurements,” CEDAR
Workshop, Santa Fe, NM, June, 2019.
Piyush M. Mehta, “On deriving Self-Consistent, High-accuracy Mass Density
Measurements,” AAS 19-439, Space Flight Mechanics, Maui, HI, January, 2019.
Piyush M. Mehta and Richard Linares, “Data-driven Investigation of Thermospheric
Variations,” AAS 19-438, Space Flight Mechanics, Maui, HI, January, 2019.
Piyush M. Mehta, Gonzalo Blanco-Arnao, Davide Bonetti, Edmondo Minisci,
Massimiliano Vasile, “
Computer Graphics for Space Debris”, 6th International Conference on Astrodynamics Tools and Techniques, Darmstadt,
Germany, March 14-17, 2016.
Josef Koller, Sean M. Brennan, Humberto C. Godinez, Moriba K. Jah, Thomas Kelecy,
Brian A. Larsen, …. ,
Piyush M.Mehta, …. , Brent E. Wohlberg, "A Framework for Integrated
Modeling of Perturbations in Atmospheres for Conjunction Tracking (IMPACT)",
AIAA Space Operations Conference, Pasadena, California, May 2014.
Alexei V. Klimenko, Sean M. Brennan, Humberto C. Godinez, Dave Higdon, Josef Koller,
Earl Lawrence, …. ,
Piyush M.Mehta, …. , Craig McLaughlin, “IMPACT: Integrated Modeling
of Perturbations in Atmospheres for Conjunction Tracking”,
AAS/AIAA Space Flight Mechanics Conference, Santa Fe, New Mexico, January
2014.
Josef Koller, Sean M. Brennan, Humberto C. Godinez, Dave Higdon, Alexei Klimenko,
Brian A. Larsen, …. ,
Piyush M.Mehta, …. , Earl Lawrence, “IMPACT: Integrated Modeling of
Perturbations in Atmospheres for Conjunction Tracking,"
AGU Fall Meeting, San Francisco, California, December 2013.
Josef Koller, Sean M. Brennan, Humberto C. Godinez, Dave Higdon, Alexei Klimenko,
Brian A. Larsen, …. ,
Piyush M. Mehta, …., Craig McLaughlin, “IMPACT: Integrated Modeling
of Perturbations in Atmospheres for Conjunction Tracking," Oral presentation
and paper at the
AMOS Conference, Maui, Hawaii, September 2013.
Piyush M. Mehta, Andrew Walker, Earl Lawrence, Richard Linares, David
Higdon and Josef Koller, “
Modeling Satellite Drag Coefficients with Response Surfaces,”
AAS/AIAA Astrodynamics Specialist Conference, Hilton Head, South Carolina,
August 2013.
Andrew Walker,
Piyush M. Mehta and Josef Koller, “A Comparison of Drag Coefficients
computed with Diffuse and Quasi-specular Gas-Surface Interaction Models,”
Space Weather Workshop, Boulder, Colorado, April 2013.
Alexei V. Klimenko, David Thompson, Sean M. Brennan, Humberto C. Godinez, Dave
Higdon, Josef Koller, …. ,
Piyush M. Mehta, …. , Craig McLaughlin, “IMPACT: Integrated Modeling
of Perturbations in Atmospheres for Conjunction Tracking," Oral presentation
at the
MIT Lincoln Laboratory Space Control Conference, Lexington, Massachusetts,
April 2013.
Josef Koller, Sean M. Brennan, Humberto C. Godinez, Dave Higdon, Moriba K. Jah,
Alexei Klimenko, …. ,
Piyush M. Mehta, …. , Brent Wohlberg, “Integrated Modeling of Perturbations
in Atmospheres for Conjunction Tracking,"
Space Weather Week Workshop, Boulder, Colorado, April 2013.
Piyush M. Mehta and Craig A. McLaughlin, “GRACE Drag Coefficient Model
Developed using Direct Simulation Monte Carlo (DSMC) Method,”
23rd AIAA/AAS Space Flight Mechanics Conference, AAS 13-284, Kauai, Hawaii,
February 2013.
Piyush M. Mehta and Craig A. McLaughlin, “Energy-Accommodation Coefficient
and Drag Coefficient Modeling for Stella and Starlette,”
International Astronautical Congress, IAC-12-C1.6.10, Naples, Italy, October
2012.
Piyush M. Mehta and Craig A. McLaughlin, “Density and Ballistic Coefficient
Estimation Revisited,”
AAS/AIAA Astrodynamics Specialist Conference, AAS 11-609, Girdwood, Alaska,
July 31-August 4, 2011.
Craig A. McLaughlin, Eric Fattig, Dhaval Mysore Krishna, Travis Locke and
Piyush M. Mehta, “Time Periods of Anomalous Density for GRACE and CHAMP,”
AAS/AIAA Astrodynamics Specialist Conference, AAS 11-613, Girdwood, Alaska,
July 31-August 4, 2011.
Craig A. McLaughlin, Travis F. Lechtenberg, Stephen R. Mance, Travis Locke and
Piyush M. Mehta, “Fitted Drag Coefficients as a Source of Density Information,”
21stAAS/AIAA Space Flight Mechanics Meeting Conference Proceedings, AAS
11-174, New Orleans, Louisiana, February 13-17, 2011.
Presentations: (Oral and Poster)
Piyush M. Mehta, Richard Licata, Smriti Nandan Paul, "Probabilistic
Thermosphere Modeling and Multi-Model Ensemble Approach for Operations," ISWAT
G2A-01: Thermosphere Modeling Cluster, Coimbra, Portugal, September 2022.
Richard Licata,
Piyush M. Mehta, W. Kent Tobiska, Snehalata Huzurbazar, "Machine-Learned
HASDM model with Uncertainty Quantification," 19th Space Weather Conference,
AMS, Houston (Virtual), January 2022. Oral.
Richard Licata,
Piyush M. Mehta, Daniel Weimer, W. Kent Tobiska, "Improved Neutral Density
Predictions through Machine Learning Enabled Exospheric Temperature Model," AGU
Fall Meeting, New Orleans (Hybrid), December 2021. Oral.
Denny M. Oliveira, Eftyhia Zesta,
Piyush M. Mehta, Richard Licata, Marcin Pilinski, W. Kent Tobiska, Hisashi
Hayakawa, "Perspectives on the thermosphere response during the extreme storm
cycle: Current status of forecasting and specification models," AGU Fall Meeting,
New Orleans (Hybrid), December, 2021. Oral.
Daniel Weimer, W. Kent Tobiska,
Piyush M. Mehta, Richard Licata, Douglas Drob, "Validation of a Neutral
Density Model Through a Comparison with the High Accuracy Satellite Drag Model
(HASDM)," AGU Fall Meeting, New Orleans (Hybrid), December, 2021. Oral.
Christopher Mertens, Guillaume Gronoff, Smriti Paul,
Piyush M. Mehta, Yihua Zheng, "NAIRAS Operational Improvements to SEP
Aviation Radiation Dose Predictions," Space Weather Week Workshop, Virtual, March,
2021. Poster
Daniel Weimer, W. Kent Tobiska,
Piyush M. Mehta, Douglas Drob. "Advanced Prediction of Upper Atmospheric
Neutral Density using Measurements from Solar Wind Sentinels." Space Weather
Week Workshop, Virtual, March, 2021. Oral.
Richard J. Licata,
Piyush M. Mehta, and W. Kent Tobiska. "Data-Driven HASDM Density Model
using Machine Learning." AGU Fall Meeting, December 2020. Poster.
Daniel Weimer, W. Kent Tobiska, Bruce Bowman,
Piyush M. Mehta, and Douglas Drob, "Advancing a Neutral Density Prediction
Model to Operational Use," AGU Fall Meeting, December 2020. Poster.
W. Kent Tobiska, Bruce Bowman, …,
Piyush M. Mehta, and Richard J. Licata. "SET HASDM Database available
to the research community as the new density benchmark." AGU Fall Meeting, December
2020. Poster.
Piyush M. Mehta. "Workflows for Integrating Physics-based Simulation
Modeling, Machine Learning, and Data Assimilation across Geospace." Workshop
on Machine Learning, Data Mining, and Data Assimilation in Geospace, September
2020. Oral.
Richard J. Licata and
Piyush M. Mehta. "Physics-informed Machine Learning with Autoencoders
and LSTM for Probabilistic Space Weather Modeling and Forecasting." 17th Conference
on Space Weather – 100th AMS Annual Meeting, January 2020. Poster.
Piyush M. Mehta. "Physics-informed Machine Learning for Data Assimilation
in High-Dimensional Space Weather Models." 17th Conference on Space Weather –
100th AMS Annual Meeting, January 2020. Oral.
Daniel R. Weimer,
Piyush M. Mehta, W. Kent Tobiska, Martin Mlynczak, and Linda Hunt. "An
Exospheric Temperature Model Using a Polyhedral Grid." AGU Fall Meeting, December
2019. Poster.
Piyush M. Mehta, Richard J. Licata, Daniel T. Welling, Michelle Cash,
and Steve K. Morley. "Physics-informed Machine Learning for Probabilistic Space
Weather Modeling and Forecasting: dB/dt and Geomagnetically Induced Currents."
AGU Fall Meeting, December 2019. Poster
Richard J. Licata and
Piyush M. Mehta. "Physics-informed Machine Learning for Probabilistic
Space Weather Modeling and Forecasting: Thermosphere and Satellite Drag." AGU
Fall Meeting 2019, December 2019. Poster.
Piyush M. Mehta, Valerie Bernstein, and Delores Knipp. "On deriving
Self-Consistent, High-accuracy Mass Density Measurements." CEDAR Workshop, Santa
Fe, NM, June 2019. Poster.
Piyush M. Mehta, Eric Sutton, Richard Linares."Data-driven inference
of thermosphere composition during solar minimum conditions." CEDAR Workshop,
Santa Fe, NM, June 2019. Oral.
Piyush M. Mehta, and Richard Linares. "Data-driven inference of thermosphere
dynamics and variations." AGU Fall Meeting, 2017. Poster.
Piyush M. Mehta, Andrew C. Walker, Eric K. Sutton, and Humberto C. Godinez.
"New density estimates derived using accelerometers on-board the CHAMP and GRACE
satellites." AGU Fall Meeting, SA31A-2349, 2016. Poster.
Andrew Walker,
Piyush M. Mehta, and Josef Koller. "A Comparison of Drag Coefficients
computed with Diffuse and Quasi-specular Gas-Surface Interaction Models." Space
Weather Workshop, Boulder, Colorado, April 2013. Oral.
Alexei V. Klimenko, David Thompson, Sean M. Brennan, Humberto C. Godinez, Dave Higdon,
Josef Koller, …. ,
Piyush M. Mehta, …. , Craig McLaughlin. "IMPACT: Integrated Modeling
of Perturbations in Atmospheres for Conjunction Tracking." MIT Lincoln Laboratory
Space Control Conference, Lexington, MA, April 2013. Oral.
Josef Koller, Sean M. Brennan, Humberto C. Godinez, Dave Higdon, Moriba K. Jah, Alexei
Klimenko, …. ,
Piyush M. Mehta, …. , Brent Wohlberg. "Integrated Modeling of Perturbations
in Atmospheres for Conjunction Tracking." Space Weather Week Workshop, Boulder,
CO, April 2013. Oral.