Technical Reports

2023

  • Jaideep Ray, Cosmin Safta, Wyatt Bridgman, Maya Horii and Aidan Gould, "A spatially regularized detector for emergent/re-emergent disease outbreaks", Sandia Technical Report, SAND2023-09749R, Sandia National Laboratories, Livermore, CA. Printed September 2023.

2022

  • David S. Ching, Francesco Rizzi and Jaideep Ray, "Basis adaptation for steady reduced-order models", Sandia Technical Report, SAND2022-12742, Sandia National Laboratories, Livermore, CA. Printed September 2022.

2021

  • Jaideep Ray, Matthew Barone, Stefan Domino, Tania Banerjee and Sanjay Ranka, "Verification of Data-Driven Models of Physical Phenomena using Interpretable Approximation", Sandia Technical Report, SAND2021-11682, Sandia National Laboratories, Livermore, California. Printed October 2021.
  • C. Hoang, K. Chowdhary, K. Lee and J. Ray, "Projection-based model reduction of dynamical systems using space-time subspace and machine learning", arXiv:2102.03505, 2021.

2020

  • Kookjin Lee, Jaideep Ray and Cosmin Safta, "Predictive Skill of Deep Learning Models Trained on Limited Sequence Data", Printed September 2020. Sandia National Laboratories, Livermore, CA.
  • J. Ray, F. Wang and C. J. Young, "A Multi-instance Learning Framework for Seismic Detectors", Sandia Technical Report. Printed September 2020. Sandia National Laboratories, Livermore, CA.
  • C. Safta, J. Ray, E. Acquesta, T. Catanach, K. Chowdhary, B. Debusschere, E. Galvan, G. Geraci, M. Khalil and T. Portone, "Characterization of Partially Observed Epidemics – Application to COVID-19", Sandia Technical Report. Printed June 2020. Sandia National Laboratories, Livermore, CA.
  • J. Ray, N. Le Galloudec and C. Keane, "Detecting signs of aging in stronglinks using acoustic and electrical observables," Sandia Technical Report, Printed February 2020. Sandia National Laboratories, Livermore, CA.

2019

  • Y.T. Lin, J. Neumann, E. F. Miller, R. G. Posner, A. Mallela, C. Safta, J. Ray, G. Thakur, S. Chinthavali, W. S. Hlavacek, "Daily Forecasting of New Cases for Regional Epidemics of Coronavirus Disease 2019 with Bayesian Uncertainty Quantification", medRxiv 2020.07.20.20151506; DOI:https://doi.org/10.1101/2020.07.20.20151506. 
  • J. Ray, K. Cauthen, S. Lefantzi and L. Burks, "Conditioning multi-model ensembles for disease forecasting," Sandia Technical Report. Printed January 2019. Sandia National Laboratories, Livermore, CA

2017

  • J. Ray, L. Swiler, M. Ebeida, M. Huang, Z. Hou, J. Bao and H. Ren, "SAChES:Scalable Adaptive Chain Ensemble Sampling", Sandia Technical Report. Printed August 2017. Sandia National Laboratories, Livermore, CA

2016

  • J. Ray, S. Lefantzi, J. Bauer, M. Khalil, A. Rothfus, K. R. Cauthen, P. D. Finley and H. Smith, "Online mapping and forecasting of epidemics using open-source indicators", Sandia Technical Report, Printed September 2016. Sandia National Laboratories, Livermore, CA

2015

  • S. Lefantzi, J. Ray, S. Arunajatesan and L. Dechant, "Estimation of k-epsilon parameters using surrogate models and jet-in-crossflow data", Sandia Technical Report, Printed February 2015. Sandia National Laboratories, Livermore, CA

2014

  • J. Ray, Z. Hou, M. Huang and L. Swiler, "Bayesian calibration of the Community Land Model using surrogates", Sandia Technical Report. Printed February 2014. Sandia National Laboratories, Livermore, CA.

2013

  • S. Lefantzi, J. Ray, S. Arunajatesan and L. Dechant, "Tuning a RANS k-e model for jet-in-crossflow simulations", Sandia Technical Report. Printed September 2013. Sandia National Laboratories, Livermore, CA.
  • J. Ray, J. Lee, S. Lefantzi, V. Yadav, A. M. Michalak, B. van Bloemen Waanders and S. A. McKenna, "Kalman-Filtered Compressive Sensing for High Resolution Estimation of Anthropogenic Greenhouse Gas Emissions from Sparse Measurements", Sandia Technical Report. Printed September 2013. Sandia National Laboratories, Livermore, CA.
  • J. Ray, V. Yadav, J. Lee, A. M. Michalak, S. Lefantzi, B. van Bloemen Waanders and S. A. McKenna, "A multiresolution spatial parametrization for the estimation of fossil-fuel carbon dioxide emissions via atmospheric inversions", Sandia Technical Report. Printed April 2013. Sandia National Laboratories, Livermore, CA.
  • Jaideep Ray and John Brownstein, "Nowcasting influenza outbreaks using open-source media reports", Sandia Technical Report. Printed January 2013. Sandia National Laboratories, Livermore, CA.

2012

  • J. Ray, H. N. Najm, M. Rhee and A. Arsenlis, "An approach fir estimating the uncertainty in ParaDis predictions", Sandia Technical Report. Printed October 2012. Sandia National Laboratories, Livermore, CA.

2011

  • Khachik Sargsyan, Cosmin Safta, Robert Berry, Jaideep Ray, Bert Debusschere and Habib Najm, "Effcient uncertainty quantification methodologies for high-dimensional climate land models" Sandia Technical Report. Printed November 2011. Sandia National Laboratories, Livermore, CA.
  • C. Safta, J. Ray, K. Sargsyan, S. Lefantzi, K. Cheng and D. Crary, "Real-time characterization of partially observed epidemics using surrogate models" Sandia Technical Report. Printed October 2011. Sandia National Laboratories, Livermore, CA.
  • S. Lefantzi and J. Ray, "Deriving a model for influenza epidemics from historical data", Sandia Technical Report. Printed October 2011. Sandia National Laboratories, Livermore, CA.
  • J. Ray, S. Lefantzi, K. Klise, L. Salazar, S. A. McKenna, B. van Bloemen Waanders, M. D. Parno, Y. M. Marzouk, "Bayesian Data Assimilation for Stochastic Multiscale Models of Transport in Porous Media", Sandia Technical Report. Printed October 2011. Sandia National Laboratories, Livermore, CA.
  • J. Ray, S. A. McKenna, B. van Bloemen Waanders and Y. M. Marzouk, "Bayesian estimation of of unresolved properties of binary media from multiscale observations" Sandia Technical Report. Printed May 2011. Sandia National Laboratories, Livermore, CA.
  • S. A. McKenna, B. van Bloemen Waanders, J. Ray and Y. M. Marzouk, "Truncated multigaussian fields and effective conductance of binary media" Sandia Technical Report. Printed Janurary 2011. Sandia National Laboratories, Albuquerque, NM.

2009

  • J. Ray, P. T. Boggs, D. M. Gay, M. N. Lemaster and M. E. Ehlen, "Risk-based decision making for staggered bioterrorist attacks: Resource allocation and risk reduction in reload scenarios" Sandia Technical Report. Printed October 2009. Sandia National Laboratories, Livermore, CA.

2008

  • J. Ray, B. M. Adams, K. D. Devine, Y. M. Marzouk M. M. Wolf and H. N. Najm, "Distributed micro-releases of bioterror pathogens – Threat characterizations and epidemiology from uncertain patient observables", Sandia Technical Report. Printed October 2008. Sandia National Laboratories, Livermore, CA.

2007

  • J. Ray, Y.M. Marzouk, M. Kraus and P. Fast, "A Bayesian method for characterizing distributed microreleases: II. Inference under model uncertainty with short time-series data", Sandia Technical Report. Printed January 2007. Sandia National Laboratories, Livermore, CA.

2006

  • J. Ray, Y.M. Marzouk, H.N. Najm, M. Kraus and P. Fast, "A Bayesian method for characterizing distributed microreleases: I. The single-source case for non-contagious diseases", Sandia Technical Report. Printed March 2006. Sandia National Laboratories, Livermore, CA.