- Getting Out More from the Power Grid--Mathematical Challenges of Energy Systems. At INFORMS 2015 Philadelphia.Added a reference slide at the end and did slight modifications to a couple slides.

- Iterative Methods for DVIs Appearing in timestepping for Multibody Dynamics. At Berlin ICCP 2014 Conference. Thanks Michael Hintermüller and colleagues at Humboldt U for great event.
- A compliant visco-plastic particle contact model based on differential variational inequalities. Banff BIRS workshop, February 2014. The presentation was recordedhere.

- Optimization under Uncertainty (and a presentation of M2ACS); the ANL-DOE-GE meeting, March 2013.

- Complementarity Models for Rolling and Plasticity, International Conference on Complementarity Problems, Singapore 2012.
- Optimization and other Applied Mathematics Challenges for Complex Energy Systems, University of Illinois IMSE Initiative Kick-Off Symposium, Urbana-Champaign, September 2012.
- Scalable Dynamic Optimization -- smooth exact penalty transformations. International Symposium on Mathematical Programming, Berlin, August 2012.
- Scalable Gaussian Process Analysis -- the ScalaGauss Project, SAMSI High Performance UQ Workshop, Oak Ridge, May 2012.
- Uncertainty Propagation, Hybrid Derivative -- Sampling Methods, UC Stats, Chicago, May 2012.
- Gradient-Enhanced Uncertainty Propagation, SIAM-UQ conference, Raleigh, April 2012.
- Directions in Uncertainty Quantification and Massive Data Analysis involving Gaussian Processes, Univ of Pitt, Pittsburgh, April 2012.

- Gradient-Enhanced Uncertainty Propagation, U of Texas ICES Collquium, November 2011.
- Scalable Stochastic Programming, AMR PI plenary meeting, Oct 2011, Virginia.
- Gradient-Enhanced Uncertainty Propagation, SAMSI Summer School, June 2011, Albuquerque.
- Gradient-Enhanced Uncertainty Propagation. IMA, June 2011, Minneapolis.
- Scalable Nonlinear Model Predictive Control for Energy Applications. IEEE CSCS 18 Bucharest (plenary lecture).
- Dynamic Electricity Markets, SIAM Optimization, May 2011, Darmstadt (also, IEEE CSCS 18 Bucharest).
- Basis Design for polynomial regression with derivatives. SIAM CSE, March 2011, Reno.
- Differential Variational Inequalities in Phase Field Models. SIAM CSE, March 2011, Reno (also, SIAM OPT 2011, Darmstadt).

- Iterative Methods for Optimization Problems in Rigid-body Simulation. SIAM Parallel Processing Conference, February 2010, Seattle.
- Iterative Methods for Optimization Problems in Rigid-body Simulation. Midwest Numerical Analysis Conference, April 2010, Ames.
- Matrix-Free Methods for the Simulation of Differential Variational Inequalities (Hybrid Systems), Applied Math Research Meeting, May 2010, Berkeley, 2010.
- Polynomial Regression with Derivative Information for Uncertainty Quantification of Nuclear Modeling Simulations, 2nd Verification and Validation Workshop, Myrtle Beach, May 2010.
- Using Automatic Differentiation in Uncertainty Quantification of Nuclear Simulation Models. American Nuclear Society Meeting, San Diego, June 2010.
- A Scalable Interior Point Solver for Stochastic Programming. International Conference on Stochastic Programming, Halifax, August 2010.
- Management under Uncertainty of Energy Systems via Scalable Stochastic Programming, Seminar, Princeton, October 2010.
- On-Line Nonlinear Programming as a Generalized Equation. INFORMS, Austin, November 2010.
- A Scalable Interior Point Solver for Stochastic Programming. INFORMS, Austin, November 2010.
- Using High Performance Computing for the Management under Uncertainty of Energy Systems. Supercomputing, New Orleans, November 2010.
- Gradient Enhanced Universal Kriging Model for Uncertainty Quantification in Reactor Safety Simulations. Supercomputing, New Orleans, November 2010.
- Management under Uncertainty of Energy Systems via Scalable Stochastic Programming, Seminar, Wisconsin, November 2010 (virtually same as the one from Princeton).

- A time stepping method for large scale differential variation inequalities in nonsmooth dynamics.February 2009, UIC.
- An iterative method for large-scale multibody dynamics. March 2009, SIAM-CSE, Miami.
- Solving Large-Scale Differential Variational Inequalities in Dense Granular Flow, March 2009, OPTIMA, Urbana-Champaign.
- Verification and Validation: Uncertainty Quantification by Polynomial Regression With Derivatives.May 2009, NEAMS Review, Argonne. Similar to the presentation to the 2009 USNCCM Congress, Columbus.
- Hybrid Sampling-Sensitivity Methods for Uncertainty Quantification. June 2009, American Nuclear Society 09 Annual Meeting, Roundtable in Current Computational Methods, Atlanta
- Weather-forecast-based optimization of energy systems, July 2009, SIAM Annual Meeting, Denver.
- The Road to Stable, High Performance Simulation of Granuar Flow, Oct 2009, invited plenary at the Lehigh High Performance Computing Workshop. Also a variant of my plenary talk at ISMP 09. Large file, it contains my flas movies.
- A Linear Programming –Linear Assignment Approachfor the Protein Morphing Problem, Oct 09, INFORMS 09, San Diego.
- Weather-forecast-based Optimization of Integrated Energy Systems, Oct 09, INFORMS 09, San Diego.
- The promise of Supercomputing for Optimal Management of Energy Systems. Nov 09, Supercomputing 09, Portland.

- A Linear Programming Method for Computing the Penetration Depth in Rigid-Body Dynamics. INFORMS Annual Meeting, Seattle, 2007.
- Numerical Methods for large multibody dynamics simulation. By Alessandro Tasora (presented at Argonne, Feb 08)
- An introduction to the Differential Variational Inequalities Session; An iterative solver for cone complementarity problems of nonsmooth multibody dynamics. SIAM Optimization Conference, Boston, May 2008.
- An iterative solver for cone complementarity problems of nonsmooth multibody dynamics�and other DVI. Hybrid Systems Workshop, Koc University, Istanbul, Turkey, May 2008. A subset presented at the SIAM Optimization Conference, Boston, 2008
- A Stochastic Finite Element with Derivative Information Approach for Uncertainty Quantification in Nuclear Reactors. Verification and Validation for Nuclear Systems Analysis, Idaho Falls, Idaho, July 2008.
- Optimization at Argonne (large file, includes flash movies). Argonne/MCS-NDSU meeting, November 2008.
- An time stepping method for large scale differential variational inequalities appearing in nonsmooth dynamics. December 2008. Stevens Institute of Technology.

- Quasicontinuum-like model reduction approaches in material science. SIAM CSE Conference, Costa Mesa, February 2007.
- Stochastic Finite element approach for Uncertainty Quantification in Nuclear Reactors.3-rd Conference on Mathematics, Computation and Nuclear Supercomputing Applications, Monterey, April 2007.
- Cone complementarity problems for nonsmooth multirigid body dynamics. LANS Seminar, June 2007.
- Quasicontinuum-like model reduction approaches in material science. International Conference in Computational and Mathematical Methods in Science and Engineering -- Numerical Analysis Day, June 2007.
- Convergence Framework for Trapezoidal-Like Semi-Implicit Time-Stepping Schemes for Multi Body Dynamics with Contacts and Joints. International Congress in Industrial and Applied Mathematics (ICIAM), Zurich, 2007.
- Cone complementarity problems for nonsmooth multirigid body dynamics. International Conference on Continuous Optimization ( ICCOPT), Hamilton, Canada, 2007.
- Stochastic Finite Element approaches for Uncertainty Quantification in Nuclear Reactors. ICCOPT, Hamilton, Canada, 2007.

- Mathematical Programs with Complementarity Constraints. IIT Math Seminar, Chicago, April 2006.
- Multiscale Problems relevant to the Global Nuclear Energy Partnership (GNEP). 3rd DOE Workshop on GNEP. Washington, D.C., July 2006.
- A Reconstruction Approach for Electronic Structure Computation (presented by Peter Zapol). World Congress on Computational Mechanics, Los Angeles, August 2006.
- Stochastic Finite Element Approaches for Parametric Constrained Optimization Problems. LANS Seminar, Argonne, November 2006.

- Theoretical basis of density functional theory. LANS Math Seminar, Argonne, April 2005.
- Hard constraints methods for multi rigid body dynamics with contact and friction. Numerical Analysis Conference, Iowa City, May 2005.
- Nonlinear Optimization and Applications. Argonne Student Seminar, Argonne, June, 2005.
- Hard constraints methods for multi rigid body dynamics with contact and friction. BIRS Workshop on dynamical systems, Banff, June 2005.
- Optimization-based simulation of nonsmooth dynamics. SCICONOS-DAVINCI meeting, Grenoble, July 2005.
- Optimization-based simulation of nonsmooth dynamics. International Conference on Complementarity Problems, Stanford, August 2005.
- Convergence of elastic mode formulations for mathematical programs with complementarity constraints. INFORMS Annual Meeting, San Francisco, November 2005.

- Solving nonconvex problems of nonsmooth
dynamics

by convex relaxation. Computation Institute, Chicago, January 2004. - Global convergence of elastic mode approaches for a class of Mathematical Programming with Complementarity Constraints. CORS-INFORMS meeting, Banff, June 2004.
- Global convergence of elastic mode approaches for a class of Mathematical Programming with Complementarity Constraints. International Conference on Continuous Optimization, Troy, August 2004.
- Optimal Control Problems with Complementarity Constraints. INFORMS Annual Meeting, Denver, November 2004.

- Constraint stabilization for Linear Complementarity time-stepping methods for Multi-Rigid-Body with Contact and Friction. SIAM Annual Meeting, Montreal, June 2003, SCICADE, Trondheim, July 2003, and ASME Annual Meeting, Chicago, Sep 2003.
- Constrained-based simulation of Multi-Rigid-Body Dynamics with Contact and Friction. International Congress on Industrial and Applied Mechanics, Sydney, July 2003.
- Complementarity-based simulation of Multi-Rigid-Body Dynamics with Contact and Friction. International Mathematical Programming Symposium, Copenhagen, August, 2003.
- Constraint stabilization for Linear Complementarity time-stepping methods for Multi-Rigid-Body Dynamics with contact and Friction. INFORMS Annual Meeting, November, 2003.
- Rate of convergence results for Nonlinear Programming elastic model algorithsm for Mathematical Programs with Complementarity Constraints, INFORMS Annual Meeting, Atlanta, November 2003.

- Using Linear Complementarity Techniques to Model and Simulate Multi-Rigid-Body Dynamics with Contact and Friction. NATO Advanced Scientific Institute on Multibody Dynamics, Prague, July 2002.
- Approaching Optimal Design Problems for Parameterized Variational Inequalities by smooth NLP techniques. INFORMS annual meeting, San Jose, November 2002.

- Degenerate Nonlinear Programming Unbounded Lagrange Multiplier Sets Applications to Mathematical Programs with Complementarity Constraints. INFORMS Annual Meeting, Miami Beach, November 2001.

- Degenerate Nonlinear Programming
with Unbounded Lagrange Multiplier Sets

Applications to Mathematical Programs with Complementarity Constraints. International Symposium on Mathematical Programming, August 2000. - Using Linear Complementarity Techniques to Model and Simulate Multi-Rigid-Body Dynamics with Contact and Friction. SIAM Computational Science and Engineering, Washington DC, September 2000.
- Degenerate Nonlinear Programming with Unbounded Lagrange Multiplier Sets Applications to Mathematical Programs with Complementarity Constraints. INFORMS Annual Meeting, San Antonio, November 2000.

- Simulating Multi-Rigid-Body Dynamics with Contact and Friction. SIAM Conference on Optimization, Atlanta, May 1999.
- Degenerate nonlinear programs with a quadratic growth condition. INFORMS Annual Meeting, Philadelphia, November 1999.