Faculty

Sauleh Siddiqui

Assistant Professor

Department of Civil Engineering

Co-Director, Center for Systems Science and Engineering

Diversity Champion

Sauleh Siddiqui is an Assistant Professor of Civil Engineering and Applied Mathematics & Statistics at the Whiting School of Engineering, Co-Director of the Center for Systems Science & Engineering, and Research Fellow at DIW Berlin. He is also a member of the Malone Center for Engineering in Healthcare and the Center for Systems Engineering in Healthcare. He has received the Young Researcher Prize from the Energy Natural Resources and the Environment section of INFORMS, where he serves as Chair of the Energy Cluster. He is also Vice Chair for Linear and Conic Optimization for the INFORMS optimization society and is an Associate Editor for the journal Optimization and Engineering

His research is on formulating and solving optimization and game theory models representing human-system interaction when making decisions in large-scale energy and health systems. These include applications to energy infrastructure, healthcare planning, and urban transportation. Modeling multiplayer decisions under uncertainty using optimization introduces nonlinearities and discontinuities in the problem structure that need to be resolved for theoretical and computational foundations. His research centers on developing the required theory and computational tools for solving these new class of optimization problems.

He has received research funding from NSF, NIH, MIT Collaborative Initiatives, the World Bank, Johns Hopkins Health System, and the Norwegian Research Council. In addition, he has collaborated on projects with the International Council on Clean Transportation, Institute of Medicine, National Academy of Engineering, Resources for the Future, the Joint Global Change Research Institute, and Bikemore. These projects have included modeling energy and climate markets, patient flow and staffing in hospitals, and global vaccination strategies.

He received an A.B. in Mathematics and Public Policy from Franklin & Marshall College and a Ph.D. in Applied Mathematics & Statistics, and Scientific Computation from the University of Maryland, College Park. Prior to joining Hopkins, he was an Associate in the Environmental Markets team at ICF International and a consultant with the Development Research Group at the World Bank. [Google Scholar & Research Gate]

Journal Articles
  • Feijoo F, Iyer GC, Avraam C, Siddiqui SA, Clarke LE, Sankaranarayanan S, Binsted MT, Patel PL, Prates NC, Torres-Alfaro E, Wise MA (2018).  The future of natural gas infrastructure development in the United states.  Applied Energy.  228.
  • Bakker C, Zaitchik BF, Siddiqui S, Hobbs BF, Broaddus E, Neff RA, Haskett J, Parker CL (2018).  Shocks, seasonality, and disaggregation: Modelling food security through the integration of agricultural, transportation, and economic systems.  Agricultural Systems.  164.
  • Sankaranarayanan S, Feijoo F, Siddiqui S (2018).  Sensitivity and covariance in stochastic complementarity problems with an application to North American natural gas markets.  European Journal of Operational Research.  268(1).
  • Huppmann D, Siddiqui S (2018).  An exact solution method for binary equilibrium problems with compensation and the power market uplift problem.  European Journal of Operational Research.  266(2).
  • Oke O, Bhalla K, Love DC, Siddiqui S (2018).  Spatial associations in global household bicycle ownership.  Annals of Operations Research.  263(1-2).
  • Oke O, Huppmann D, Marshall M, Poulton R, Siddiqui S (2018).  Multimodal Transportation Flows in Energy Networks with an Application to Crude Oil Markets.  Networks and Spatial Economics.
  • Huppmann, Daniel; Siddiqui, Sauleh (2018).  An exact solution method for binary equilibrium problems with compensation and the power market uplift problem.  European Journal of Operational Research.  266(2).  622-638.
  • Oke, Olufolajimi; Huppmann, Daniel; Marshall, Max; Poulton, Ricky; Siddiqui, Sauleh (2018).  Multimodal Transportation Flows in Energy Networks with an Application to Crude Oil Markets.  Networks and Spatial Economics.  1-35.
  • Siddiqui S, Morse E, Levin S (2017).  Evaluating nurse staffing levels in perianesthesia care units using discrete event simulation.  IISE Transactions on Healthcare Systems Engineering.  7(4).
  • Brijs T, van Stiphout A, Siddiqui S, Belmans R (2017).  Evaluating the role of electricity storage by considering short-term operation in long-term planning.  Sustainable Energy, Grids and Networks.  10.
  • Jiang W, Searle S, Siddiqui S (2017).  Analysis of the global wood-chip trade's response to renewable energy policies using a spatial price equilibrium model.  Biofuels, Bioproducts and Biorefining.  11(3).
  • Siddiqui S, Gabriel SA (2017).  Modeling market power in the U.S. shale gas market.  Optimization and Engineering.  18(1).
  • Jiang W, Searle S, Siddiqui S (2017).  Analysis of the global wood-chip trade's response to renewable energy policies using a spatial price equilibrium model.  Biofuels, Bioproducts and Biorefining.
  • Jiang, Wei; Searle, Stephanie; Siddiqui, Sauleh (2017).  Analysis of the global wood‐chip trade's response to renewable energy policies using a spatial price equilibrium model.  Biofuels, Bioproducts and Biorefining.  11(3).  505-520.
  • Brijs, Tom; van Stiphout, Arne; Siddiqui, Sauleh; Belmans, Ronnie (2017).  Evaluating the role of electricity storage by considering short-term operation in long-term planning.  Sustainable Energy, Grids and Networks.  10.  104-117.
  • Siddiqui, Sauleh; Gabriel, Steven A (2017).  Modeling market power in the US shale gas market.  Optimization and Engineering.  18(1).  203-213.
  • Siddiqui, Sauleh; Morse, Elizabeth; Levin, Scott (2017).  Evaluating nurse staffing levels in perianesthesia care units using discrete event simulation.  IISE Transactions on Healthcare Systems Engineering.  7(4).  215-223.
  • Sankaranarayanan, Sriram; Feijoo, Felipe; Siddiqui, Sauleh (2017).  Sensitivity and covariance in stochastic complementarity problems with an application to North American natural gas markets.  European Journal of Operational Research.
  • Strand, Jon (2017).  Modeling the marginal value of rainforest losses: A dynamic value function approach.  Ecological Economics.  131.  322-329.
  • Feijoo F, Huppmann D, Sakiyama L, Siddiqui S (2016).  North American natural gas model: Impact of cross-border trade with Mexico.  Energy.  112.
  • Karp L, Siddiqui S, Strand J (2016).  Dynamic Climate Policy with Both Strategic and Non-strategic Agents: Taxes Versus Quantities.  Environmental and Resource Economics.  65(1).
  • Brijs T, Huppmann D, Siddiqui S, Belmans R (2016).  Auction-based allocation of shared electricity storage resources through physical storage rights.  Journal of Energy Storage.  7.
  • Brijs T, Geth F, Siddiqui S, Hobbs BF, Belmans R (2016).  Price-based unit commitment electricity storage arbitrage with piecewise linear price-effects.  Journal of Energy Storage.  7.
  • Toerper MF, Flanagan E, Siddiqui S, Appelbaum J, Kasper EK, Levin S (2016).  Cardiac catheterization laboratory inpatient forecast tool: A prospective evaluation.  Journal of the American Medical Informatics Association.  23(e1).
  • Barnes S, Hamrock E, Toerper M, Siddiqui S, Levin S (2016).  Real-time prediction of inpatient length of stay for discharge prioritization.  Journal of the American Medical Informatics Association.  23(e1).
  • Siddiqui S, Christensen A (2016).  Determining energy and climate market policy using multiobjective programs with equilibrium constraints.  Energy.  94.
  • Oke, Olufolajimi; Bhalla, Kavi; Love, David C; Siddiqui, Sauleh (2016).  Spatial associations in global household bicycle ownership.  Annals of Operations Research.  1-21.
  • Brijs, Tom; Huppmann, Daniel; Siddiqui, Sauleh; Belmans, Ronnie (2016).  Auction-based allocation of shared electricity storage resources through physical storage rights.  Journal of Energy Storage.  7.  82-92.
  • Sankaranarayanan, Sriram; Feijoo, Felipe; Siddiqui, Sauleh (2016).  Sensitivity and Covariance in Stochastic Complementarity Problems with an Application to Natural Gas Markets.  arXiv preprint arXiv:1612.04847.
  • Siddiqui S, Christensen A (2016).  Determining energy and climate market policy using multiobjective programs with equilibrium constraints.  Energy.  94.  316-325.
  • Brijs T, Geth F, Siddiqui S, Hobbs B, Belmans R (2016).  Price-based unit commitment electricity storage arbitrage with piecewise linear price-effects.  Journal of Energy Storage.  7.  52-62.
  • Feijoo, Felipe; Huppmann, Daniel; Sakiyama, Larissa; Siddiqui, Sauleh (2016).  North American natural gas model: Impact of cross-border trade with Mexico.  Energy.  112.  1084-1095.
  • Brijs T, van Stiphout A, Siddiqui S, Belmans R (2016).  Evaluating the Role of Electricity Storage by Considering Short-Term Operation in Long-Term Planning.
  • Oke O, Bhalla K, Love DC, Siddiqui S (2016).  Spatial associations in global household bicycle ownership.  Annals of Operations Research.  1-21.
  • Oke O, Huppmann D, Marshall M, Poulton R, Siddiqui S (2016).  Mitigating environmental and public-safety risks of United States crude-by-rail transport.
  • Brijs, Tom; Geth, Frederik; Siddiqui, Sauleh; Hobbs, Benjamin F; Belmans, Ronnie (2016).  Price-based unit commitment electricity storage arbitrage with piecewise linear price-effects.  Journal of Energy Storage.  7.  52-62.
  • Siddiqui, Sauleh; Christensen, Adam (2016).  Determining energy and climate market policy using multiobjective programs with equilibrium constraints.  Energy.  94.  316-325.
  • Brijs T, Huppmann D, Siddiqui S, Belmans R (2016).  Auction-based allocation of shared electricity storage resources through physical storage rights.  Journal of Energy Storage.  7.  82-92.
  • Feijoo F, Huppmann D, Sakiyama L, Siddiqui S (2016).  North American natural gas model: Impact of cross-border trade with Mexico.  Energy.  112.  1084-1095.
  • Sankaranarayanan S, Feijoo F, Siddiqui S (2016).  Sensitivity and Covariance in Stochastic Complementarity Problems with an Application to Natural Gas Markets.  arXiv preprint arXiv:1612.04847.
  • Siddiqui S, Gabriel SA (2016).  Modeling market power in the US shale gas market.  Optimization and Engineering.  1-11.
  • Oke, Olufolajimi; Huppmann, Daniel; Marshall, Max; Poulton, Ricky; Siddiqui, Sauleh (2016).  Mitigating Environmental and Public-Safety Risks of United States Crude-by-Rail Transport.
  • Oke O, Bhalla K, Love DC, Siddiqui S (2015).  Tracking global bicycle ownership patterns.  Journal of Transport and Health.  2(4).
  • Satti S, Zaitchik B, Siddiqui S (2015).  The question of Sudan: A hydro-economic optimization model for the Sudanese Blue Nile.  Hydrology and Earth System Sciences.  19(5).
  • Oke O, Siddiqui S (2015).  Efficient automated schematic map drawing using multiobjective mixed integer programming.  Computers and Operations Research.  61.
  • Christensen A, Siddiqui S (2015).  Fuel price impacts and compliance costs associated with the Renewable Fuel Standard (RFS).  Energy Policy.  86.
  • Oke, Olufolajimi; Bhalla, Kavi; Love, David C; Siddiqui, Sauleh (2015).  Supplementary Material for: Tracking global bicycle ownership patterns.
  • Christensen, Adam; Siddiqui, Sauleh (2015).  Fuel price impacts and compliance costs associated with the Renewable Fuel Standard (RFS).  Energy Policy.  86.  614-624.
  • Christensen A, Siddiqui S (2015).  A mixed complementarity model for the US biofuel market with federal policy interventions.  Biofuels, Bioproducts and Biorefining.  9(4).
  • Oke, Olufolajimi; Bhalla, Kavi; Love, David C; Siddiqui, Sauleh (2015).  Tracking global bicycle ownership patterns.  Journal of Transport & Health.  2(4).  490-501.
  • Siddiqui S, Gabriel SA, Azarm S (2015).  Solving mixed-integer robust optimization problems with interval uncertainty using Benders decomposition.  Journal of the Operational Research Society.  66(4).
  • Toerper, Matthew F; Flanagan, Eleni; Siddiqui, Sauleh; Appelbaum, Jeff; Kasper, Edward K; Levin, Scott (2015).  Cardiac catheterization laboratory inpatient forecast tool: a prospective evaluation.  Journal of the American Medical Informatics Association.  23(e1).  e49-e57.
  • Barnes, Sean; Hamrock, Eric; Toerper, Matthew; Siddiqui, Sauleh; Levin, Scott (2015).  Real-time prediction of inpatient length of stay for discharge prioritization.  Journal of the American Medical Informatics Association.  23(e1).  e2-e10.
  • Satti, S; Zaitchik, B; Siddiqui, S (2015).  The question of Sudan: a hydro-economic optimization model for the Sudanese Blue Nile.  Hydrology and Earth System Sciences.  19(5).  2275.
  • Oke O, Bhalla K, Love DC, Siddiqui S (2015).  Supplementary Material for: Tracking global bicycle ownership patterns.
  • Siddiqui S, Gabriel SA, Azarm S (2015).  Solving mixed-integer robust optimization problems with interval uncertainty using Benders decomposition.  Journal of the Operational Research Society.  66(4).  664-673.
  • Toerper MF, Flanagan E, Siddiqui S, Appelbaum J, Kasper EK, Levin S (2015).  Cardiac catheterization laboratory inpatient forecast tool: a prospective evaluation.  Journal of the American Medical Informatics Association.  ocv124.
  • Satti S, Zaitchik B, Siddiqui S (2015).  The question of Sudan: a hydro-economic optimization model for the Sudanese Blue Nile.  Hydrology and Earth System Sciences.  19(5).  2275-2293.
  • Oke O, Siddiqui S (2015).  Efficient automated schematic map drawing using multiobjective mixed integer programming.  Computers & Operations Research.  61.  1-17.
  • Strand J, Siddiqui S (2015).  Value of improved information about forest protection values, with application to rainforest valuation.
  • Christensen A, Siddiqui S (2015).  Fuel price impacts and compliance costs associated with the Renewable Fuel Standard (RFS).  Energy Policy.  86.  614-624.
  • Christensen A, Siddiqui S (2015).  A mixed complementarity model for the US biofuel market with federal policy interventions.  Biofuels, Bioproducts and Biorefining.  9(4).  397-411.
  • Huppmann D, Siddiqui S (2015).  An exact solution method for binary equilibrium problems with compensation and the power market uplift problem.
  • Barnes S, Hamrock E, Toerper M, Siddiqui S, Levin S (2015).  Real-time prediction of inpatient length of stay for discharge prioritization.  Journal of the American Medical Informatics Association.  ocv106.
  • Christensen, Adam; Siddiqui, Sauleh (2015).  A mixed complementarity model for the US biofuel market with federal policy interventions.  Biofuels, Bioproducts and Biorefining.  9(4).  397-411.
  • Oke O, Bhalla K, Love DC, Siddiqui S (2015).  Tracking global bicycle ownership patterns.  Journal of Transport & Health.  2(4).  490-501.
  • Oke O, Bhalla K, Love DC, Siddiqui S (2015).  Journal of Transport & Health.
  • Siddiqui, Sauleh; Gabriel, Steven A; Azarm, Shapour (2015).  Solving mixed-integer robust optimization problems with interval uncertainty using Benders decomposition.  Journal of the Operational Research Society.  66(4).  664-673.
  • Oke, Olufolajimi; Siddiqui, Sauleh (2015).  Efficient automated schematic map drawing using multiobjective mixed integer programming.  Computers & Operations Research.  61.  1-17.
  • Strand J, Miller S, Siddiqui S (2014).  Long-run carbon emission implications of energy-intensive infrastructure investments with a retrofit option.  Energy Economics.  46.
  • Satti, S; Zaitchik, B; Siddiqui, S (2014).  The question of Sudan: a hydroeconomic optimization model for the Sudanese Nile.  Hydrology and Earth System Sciences Discussions.  11.  11565-11603.
  • Christensen, Adam; Siddiqui, Sauleh (2014).  A complementarity model of the US biofuels market.  Biofuels, Bioproducts, and Biorefineries.  9(4).  397-411.
  • Satti S, Zaitchik B, Siddiqui S (2014).  The question of Sudan: a hydroeconomic optimization model for the Sudanese Nile.  Hydrology and Earth System Sciences Discussions.  11.  11565-11603.
  • Strand J, Miller S, Siddiqui S (2014).  Long-run carbon emission implications of energy-intensive infrastructure investments with a retrofit option.  Energy Economics.  46.  308-317.
  • Strand, Jon; Miller, Sebastian; Siddiqui, Sauleh (2014).  Long-run carbon emission implications of energy-intensive infrastructure investments with a retrofit option.  Energy Economics.  46.  308-317.
  • Gabriel SA, Siddiqui SA, Conejo AJ, Ruiz C (2013).  Solving Discretely-Constrained Nash-Cournot Games with an Application to Power Markets.  Networks and Spatial Economics.  13(3).
  • Siddiqui S, Gabriel SA (2013).  An SOS1-Based Approach for Solving MPECs with a Natural Gas Market Application.  Networks and Spatial Economics.  13(2).
  • Gabriel SA, Conejo AJ, Ruiz C, Siddiqui S (2013).  Solving discretely constrained, mixed linear complementarity problems with applications in energy.  Computers and Operations Research.  40(5).
  • Karp, Larry S; Siddiqui, Sauleh; Strand, Jon (2013).  Dynamic climate policy with both strategic and non-strategic agents: taxes versus quantities.
  • Karp LS, Siddiqui S, Strand J (2013).  Dynamic climate policy with both strategic and non-strategic agents: taxes versus quantities.
  • Gabriel, Steven A; Siddiqui, Sauleh Ahmad; Conejo, Antonio J; Ruiz, Carlos (2013).  Solving discretely-constrained Nash–Cournot games with an application to power markets.  Networks and Spatial Economics.  13(3).  307-326.
  • Gabriel, Steven A; Conejo, Antonio J; Ruiz, Carlos; Siddiqui, Sauleh (2013).  Solving discretely constrained, mixed linear complementarity problems with applications in energy.  Computers & Operations Research.  40(5).  1339-1350.
  • Siddiqui S, Gabriel SA (2013).  An SOS1-based approach for solving MPECs with a natural gas market application.  Networks and Spatial Economics.  13(2).  205-227.
  • Siddiqui, Sauleh; Gabriel, Steven A (2013).  An SOS1-based approach for solving MPECs with a natural gas market application.  Networks and Spatial Economics.  13(2).  205-227.
  • Gabriel SA, Conejo AJ, Ruiz C, Siddiqui S (2013).  Solving discretely constrained, mixed linear complementarity problems with applications in energy.  Computers & Operations Research.  40(5).  1339-1350.
  • Siddiqui S, Azarm S, Gabriel SA (2012).  On improving normal boundary intersection method for generation of Pareto frontier.  Structural and Multidisciplinary Optimization.  46(6).
  • Siddiqui, Sauleh; Azarm, Shapour; Gabriel, Steven A (2012).  On improving normal boundary intersection method for generation of Pareto frontier.  Structural and Multidisciplinary Optimization.  46(6).  839-852.
  • Siddiqui S, Azarm S, Gabriel SA (2012).  On improving normal boundary intersection method for generation of Pareto frontier.  Structural and Multidisciplinary Optimization.  46(6).  839-852.
  • Gabriel SA, Rosendahl KE, Egging R, Avetisyan HG, Siddiqui S (2012).  Cartelization in gas markets: Studying the potential for a "Gas OPEC".  Energy Economics.  34(1).
  • Gabriel SA, Rosendahl KE, Egging R, Avetisyan HG, Siddiqui S (2012).  Cartelization in gas markets: Studying the potential for a "Gas OPEC".  Energy Economics.  34(1).  137-152.
  • Gabriel, Steven A; Rosendahl, Knut Einar; Egging, Ruud; Avetisyan, Hakob G; Siddiqui, Sauleh (2012).  Cartelization in gas markets: Studying the potential for a “Gas OPEC”.  Energy Economics.  34(1).  137-152.
  • Siddiqui S, Azarm S, Gabriel S (2011).  A modified Benders decomposition method for efficient robust optimization under interval uncertainty.  Structural and Multidisciplinary Optimization.  44(2).
  • Merritts D, Walter R, Rahnis M, Hartranft J, Cox S, Gellis A, Potter N, Hilgartner W, Langland M, Manion L, Lippincott C, Siddiqui S, Rehman Z, Scheid C, Kratz L, Shilling A, Jenschke M, Datin K, Cranmer E, Reed A, Matuszewski D, Voli M, Ohlson E, Neugebauer A, Ahamed A, Neal C, Winter A, Becker S (2011).  Anthropocene streams and base-level controls from historic dams in the unglaciated mid-Atlantic region, USA.  Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.  369(1938).
  • Siddiqui S, Azarm S, Gabriel S (2011).  A modified Benders decomposition method for efficient robust optimization under interval uncertainty.  Structural and Multidisciplinary Optimization.  44(2).  259-275.
  • Siddiqui, Sauleh; Azarm, Shapour; Gabriel, Steven (2011).  A modified Benders decomposition method for efficient robust optimization under interval uncertainty.  Structural and Multidisciplinary Optimization.  44(2).  259-275.
  • Oke, Olufolajimi; Bhalla, Kavi; Love, David C; Siddiqui, Sauleh (2011).  Journal of Transport & Health.  SAGE.  2007(5).  12.
  • Strand J, Miller S, Siddiqui S (2011).  Infrastructure investments under uncertainty with the possibility of retrofit: theory and simulations.
  • Merritts, Dorothy; Walter, Robert; Rahnis, Michael; Hartranft, Jeff; Cox, Scott; Gellis, Allen; Potter, Noel; Hilgartner, William; Langland, Michael; Manion, Lauren (2011).  Anthropocene streams and base-level controls from historic dams in the unglaciated mid-Atlantic region, USA.  Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences.  369(1938).  976-1009.
  • Strand, Jon; Miller, Sebastian; Siddiqui, Sauleh (2011).  Infrastructure investments under uncertainty with the possibility of retrofit: theory and simulations.
  • Strand, Jon; Miller, Sebastian; Siddiqui, Sauleh (2011).  Environment and Energy Team.
  • Gabriel, Steve A; Rosendahl, Knut Einar; Egging, Ruud G; Avetisyan, Hakob; Siddiqui, Sauleh (2010).  Cartelization in gas markets: studying the potential for a" Gas OPEC".
  • Gabriel SA, Rosendahl KE, Egging RG, Avetisyan H, Siddiqui S (2010).  Cartelization in gas markets: studying the potential for a" Gas OPEC".  Statistics Norway, Research Department.
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