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| Return to main page for Stefan Wild | |
| Education: | |
| Director's Postdoctoral Fellow, Argonne National Laboratory, September 2008-2010 | |
| ¤ Supervisor: Jorge Moré | |
| Ph.D & MS, Operations Research, Cornell University, 2008 Fall | |
| ¤ Dissertation: Derivative-Free Optimization Algorithms For Computationally Expensive Functions | |
| ¤ Advisor: Christine Shoemaker; Minor Advisors: Philip Liu, David Ruppert, Charles Van Loan | |
| ¤ I am grateful to DOE for the Computational Science Graduate Fellowship that funded my doctoral studies. | |
| MS & BS, Applied Mathematics, University of Colorado, 2003 Spring | |
| ¤ MS Thesis: Seeding Non-Negative Matrix Factorizations with the Spherical K-Means Clustering | |
| ¤ Advisors: James Curry and Anne Dougherty | |
| Publications: | |
| Google Scholar profile | |
| × | "Nuclear Energy Density Optimization: Large Deformations." With M. Kortelainen, J. McDonnell, W. Nazarewicz, P.-G. Reinhard, J. Sarich, N. Schunck, and M. Stoitsov. Physical Review C, Vol. 85 (2), pp. 024304, 2012. [More information] |
| × | "TAO 2.0 Users Manual." With T. Munson, J. Sarich, S. Benson, and L. Curfman McInnes. Argonne National Laboratory Technical Memorandum ANL/MCS-TM-322, 2012. [More information] |
| × | "Occupation Number-based Energy Functional for Nuclear Masses." With Michael Bertolli and Thomas Papenbrock. Physical Review C, Vol. 85 (1), pp. 014322, 2012. [More information] |
| × | Global Convergence of Radial Basis Function Trust Region Derivative-Free Algorithms. With Christine Shoemaker. SIAM Journal on Optimization, Vol. 21 (3), pp.761-781, 2011. [More information] |
| × | Estimating Computational Noise. With Jorge Moré. SIAM Journal on Scientific Computing, Vol. 33 (3), pp. 1292-1314, 2011. [More information] |
| × | Advancing Nuclear Physics Through TOPS Solvers and Tools. With E. Ng, J. Sarich, T. Munson, H. Aktulga, C. Yang, P. Maris, J.P. Vary, M. Kortelainen, W. Nazarewicz, T. Papenbrock, N. Schunck, M.V. Stoitsov, M.G. Bertolli. Proceedings of the 2011 SciDAC Conference, Denver, CO, 2011. [More information] |
| × | Computing Heavy Elements. With N. Schunck, A. Baran, M. Kortelainen, J. McDonnell, J. Moré, W. Nazarewicz, J. Pei, J. Sarich J. Sheikh, A. Staszczak, and M. Stoitsov. Proceedings of the 2011 SciDAC Conference, Denver, CO, 2011. [More information] |
| × | UNEDF: Advanced Scientific Computing Transforms the Low-Energy Nuclear Many-Body Problem. With M. Stoitsov, H. Nam, W. Nazarewicz, A. Bulgac, G. Hagen, M. Kortelainen, J.C. Pei, K.J. Roche, N. Schunck, I. Thompson, and J.P. Vary Proceedings of the 2011 SciDAC Conference, Denver, CO, 2011. [More information] |
| × | Can Search Algorithms Save Large-scale Automatic Performance Tuning? With Prasanna Balaprakash and Paul Hovland. Proceedings of the International Conference on Computational Science, ICCS 2011, Procedia Computer Science, Vol. 4, pp. 2136-2145, 2011. [More information] |
| × | Nuclear Energy Density Optimization. With M. Kortelainen, T. Lesinski, J. Moré, W. Nazarewicz, J. Sarich, N. Schunck, and M. Stoitsov. Physical Review C, Vol. 82, pp.024313, 2010. [More information] |
| × | Towards The Universal Nuclear Energy Density Functional. With M. Stoitsov, J. Moré, W. Nazarewicz, J.C. Pei, J. Sarich, N. Schunck, and A. Staszczak. Journal of Physics: Conference Series, Vol. 180, pp.012082, 2009. [More information] |
| × | Benchmarking Derivative-Free Optimization Algorithms. With Jorge Moré. SIAM Journal on Optimization, Vol. 20 (1), pp.172-191, 2009. [More information] |
| × | MNH: A Derivative-Free Optimization Algorithm Using Minimal Norm Hessians. Tenth Copper Mountain Conference on Iterative Methods, April 2008. [More information] |
| × | ORBIT: Optimization by Radial Basis Function Interpolation in Trust-Regions. With Rommel Regis and Christine Shoemaker. SIAM Scientific Computing, Vol. 30 (6), pp. 3197-3219, 2008. [More information] |
| × | Bayesian Calibration of Computationally Expensive Models Using Optimization and Radial Basis Function Approximation. With Nikolay Bliznyuk, David Ruppert, Christine Shoemaker, Rommel Regis, and Pradeep Mugunthan. Journal of Computational and Graphical Statistics, Vol. 17 (2), pp. 1-25, 2008. [More information] |
| × | Maximizing Influence in a Competitive Social Network: A Follower's Perspective. With Tim Carnes, Chandrashekhar Nagarajan, and Anke van Zuylen. Nominated for "Best Paper". ICEC '07: Proceedings of the Ninth International Conference on Electronic Commerce, August 2007. [More information] |
| × | Improving Non-Negative Matrix Factorizations Through Structured Initialization. With James Curry and Anne Dougherty. Pattern Recognition, Vol. 37 (11), pp. 2217-2232, November 2004. [More information] |
| × | Motivating Non-Negative Matrix Factorizations. With James Curry and Anne Dougherty. Proceedings of the Eighth SIAM Conference on Applied Linear Algebra, July 2003. [More information] |
| × | Probabilistically Optimized Airline Overbooking Strategies, or "Anyone Willing to Take a Later Flight?!". With Kevin Leder and Saverio Spagnolie. Journal of Undergraduate Mathematics and Its Applications, Vol. 23, No.3, 2002. [More information] |
| Talks and Posters: | |
| × | [11/15/2011] Quadratic Models of Quantifiably Noisy Functions. INFORMS Annual Meeting, Charlotte, NC. |
| × | [10/25/2011] Opening the Blackbox in Simulation-Based Optimization. University of Colorado-Denver, Operations Research Seminar, Denver, CO. |
| ¤ | [10/18/2011] Optimal Derivatives of Noisy Simulations. DOE Applied Mathematics Principal Investigators Meeting, Reston, VA. |
| × | [06/21/2011] New Developments With POUNDERS. Annual UNEDF Meeting, E. Lansing, MI. |
| × | [05/18/2011] Optimization With Some Derivatives. SIAM Conference on Optimization, Darmstadt, Germany. |
| × | [03/16/2011] The Hunt for Missing Derivatives: Reward Offered! 5th LACM-EFES-JUSTIPEN Workshop, Oak Ridge, TN. |
| × | [03/01/2011] Applied Optimization Without Derivatives SIAM Conference on Computational Science & Engineering, Reno, NV. |
| × | [11/07/2010] Estimating Derivatives of Computationally Noisy Functions. INFORMS Annual Meeting, Austin, TX. |
| × | [09/07/2010] Least Squares Parameter Fitting Without Derivatives. 2nd International Conference on Engineering Optimization, Lisbon, Portugal. |
| × | [08/06/2010] Optimization Without Derivatives for Expensive Simulation-Based Problems. ICIS Workshop on Optimization in Energy Systems, Snowbird, UT. |
| × | [06/22/2010] What Can Optimization do for U(NEDF)? Annual UNEDF Meeting, East Lansing, MI. |
| × | [05/04/2010] Model-Based Derivative-Free Optimization Using Existing Expensive Evaluations. 2010 DOE Applied Mathematics Program Meeting, Berkeley, CA. |
| × | [04/06/2010] Estimating Computational Noise in Iterative Solvers. Eleventh Copper Mountain Conference on Iterative Methods, Copper Mountain, CO. |
| × | [02/04/2010] Estimating Computational Noise in Numerical Simulations. University of Chicago Computation Institute Seminar, Chicago, IL. |
| × | [11/16/2009] Estimating Computational Noise in Numerical Simulations. Cornell University Scientific Computing and Numerics (SCAN) Seminar, Ithaca, NY. |
| × | [10/26/2009] Estimating Computational Noise in Numerical Simulations. Argonne Mathematics and Computer Science Seminar, Argonne, IL. |
| × | [10/16/2009] Estimating Computational Noise in Numerical Simulations. Lehigh University Department of Industrial and Systems Engineering Seminar, Lehigh, PA. |
| × | [09/10/2009] Turning Weeks Into Days: Parameter Estimation For Expensive Nuclear Energy Density Functionals. Argonne Postdoctoral Research Symposium, Argonne, IL. |
| × | [08/25/2009] Variable Numbers of Interpolation Points in Model-based Algorithms. 20th International Symposium on Mathematical Programming, Chicago, IL. |
| × | [06/23/2009] Derivative-Free Optimization for DFT: A View From the Trenches of HFBTHO Calibration. Annual UNEDF Meeting, Pack Forest, WA. |
| × | [06/15/2009] Simulation-based Nonlinear Least Squares Fitting. SIAM Conference on Mathematical and Computational Issues in the Geosciences, Leipzig, Germany. |
| × | [04/21/2009] Derivative-free optimization for expensive simulation-driven problems. University of Oxford, Mathematical Institute Seminar, Oxford, UK. |
| × | [03/05/2009] Model-Based Optimization Algorithms for Expensive Simulation-Driven Problems. Iowa State University Nuclear Physics Seminar, Ames, IA. |
| × | [02/25/2009] Skyrme functional fitting at 13% of the computational expense. The 3rd LACM-EFES-JUSTIPEN Workshop, Oak Ridge, TN. |
| × | [01/13/2009] Global Optimization for Black Boxes: Making the Most of Very Little. INFORMS Computing Society Conference, Charleston, SC. |
| × | [12/17/2008] Derivative-Free Nonlinear Least Squares: Unwrapping The Blackbox. Argonne Mathematics and Computer Science Seminar, Argonne, IL. |
| ¤ | [10/15/2008] Solving Expensive Environmental Engineering Problems with GORBIT. AMR08: DOE Applied Mathematics Principal Investigators Meeting, Argonne, IL. |
| ¤ | [07/13/2008] Derivative-free Calibration of a Computationally Expensive Watershed Model. SciDAC 2008, Seattle, WA. |
| × | [06/17/2008] When Life Hands You Lemons, Optimize Away! 2008 DOE Computational Science Graduate Fellowship Annual Fellows' Conference, Washington, DC. |
| × | [05/11/2008] Benchmarking Algorithms for Derivative-Free Optimization. SIAM Conference on Optimization, Boston, MA |
| × | [04/10/2008] MNH: A Derivative-Free Optimization Algorithm Using Minimal Norm Hessians. Tenth Copper Mountain Conference on Iterative Methods, Copper Mountain, CO. |
| × | [01/18/2008] The ORBIT Algorithm For Simulation-Based Optimization Without Derivatives Argonne National Laboratory Mathematics and Computer Science Seminar, Argonne, IL. |
| × | [10/17/2007] Geometry of Data Points: A Speed Bump for the Greedy Optimizer. Continuous Optimization Seminar, Cornell University, Ithaca, NY. |
| × | [08/15/2007] Optimization by Radial Basis Function Interpolation in Trust-Regions. Second Mathematical Programming Society International Conference on Continuous Optimization, Hamilton, Ontario, Canada. |
| ¤ | [06/20/2007] Derivative-free Calibration of a Computationally Expensive Watershed Model. Poster. 2007 DOE Computational Science Graduate Fellowship Annual Fellows Conference, Washington, DC. |
| × | [02/19/2007] Optimization of Simulation-Based Optimization Problems with Constraints on the Computational Budget. 2007 SIAM Conference on Computational Science and Engineering, Costa Mesa, CA. |
| ¤ | [06/21/2006] Attacking Parameter Uncertainty in Calibration Problems Arising in Environmental Engineering. Poster. 2006 DOE Computational Science Graduate Fellowship Annual Fellows Conference, Washington, DC. |
| ¤ | [06/12/2006] Optimization of Computationally Expensive Functions in the Absence of Derivatives. Poster. ACNW (Argonne - University of Chicago - Northwestern - Wisconsin) Optimization Tutorials, Chicago, IL. |
| × | [11/16/2005] Trust-Region Models for Derivative-free Optimization in Environmental Engineering. INFORMS 2005, San Francisco, CA. |
| × | [10/10/2005] Optimization of Computationally Expensive Functions Using Function Approximation Methods with Applications in Environmental Engineering. Argonne National Laboratory Mathematics and Computer Science Seminar, Argonne, IL. |
| × | [05/04/2005] Wedge Trust-Region Methods for Derivative-free Optimization. Continuous Optimization Seminar, Cornell University, Ithaca, NY. |
| × | [7/19/2003] Motivating Non-Negative Matrix Factorizations. SIAM Conference on Applied Linear Algebra, Williamsburg, VA. |
| Teaching: | |
| ¤Cornell University Teaching Assistant: | |
| × | OR&IE 582 -- Monte Carlo Methods in Financial Engineering, Fall 2007 |
| × | OR&IE 436 -- A Mathematical Examination of Fair Representation, Spring 2004 |
| × | OR&IE 435 -- Introduction to Game Theory, Fall 2003 |
| ¤University of Colorado-Boulder Instructor: | |
| × | APPM 2350 -- Calculus III, Summer 2004 |
| ¤University of Colorado-Boulder Teaching Assistant: | |
| × | APPM 3310 -- Matrix Methods, Spring 2003 |
| × | APPM 2350 -- Calculus III, Fall 2002 |
| × | APPM 1360 -- Calculus II, Spring 2002 |
| × | APPM 1350 -- Calculus I, Spring 2001 and Fall 2001 |
| Curriculum Vitae and References: | |
| ¤ | Available upon request. |
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