Chris Siefert's Research

Publications, Proceedings and Theses

• (January 2006) Preconditioners for Generalized Saddle-Point Problems - PhD Thesis.
• (March 2005) Probing Methods for Saddle-Point Problems [Technical Report UIUCDCS-R-2005-2540]. Accepted for ETNA (with E. de Sturler).
• (June 2004) Preconditoners for Generalized Saddle-Point Problems [Technical Report UIUCDCS-R-2004-2448]. Accepted for SINUM (with E. de Sturler).
• (Summer 2002) Model-Assisted Pattern Search Methods for Optimizing Expensive Computer Simulations. Proceedings of the Section on Physical and Engineering Sciences, American Statistical Association, (with V. Torczon and M.W. Trosset).
• (Spring 2000) Model-Assisted Pattern Search - Undergraduate Honors Thesis. Accepted for Highest Honors. [Abstract].

Presentations

• (May 2005) Probing Methods for Generalized Saddle-Point Problems - Talk at Preconditioning 2005 [Emory University, GA].
• (February 2005) Generalized Saddle-Point Preconditioners and Approximate Schur Complements - Talk at CSE 2005 [Orlando, FL].
• (April 2004) Preconditioners for Generalized Saddle-Point Problems - Talk at Midwest Numerical Analysis Day 2004 [UW-Milwaukee].
• (October 2003) Preconditioners for Generalized, Stabilized Saddle-Point Problems - Contributed Talk at Preconditioning 2003 [Napa, CA].
• (August 2002) Model-Assisted Pattern Search Methods for Optimizing Expensive Computer Simulations - Topic Contributed/Invited Talk at JSM 2002 [NYC].
• (Fall 2001) Efficient Computation of Planar Triangulations - Proceedings of the 10th International Meshing Roundtable (with J. Liesen, E. deSturler, A. Sheffer, Y. Aydin).
• (Summer 2001) Uncertainty Quantification of an Experimental Data Matching Problem Arising in EUVL - Sandia Working Paper (with M. Martinez-Canales and J. Meza).
• (Summer 2000) MAPS: An algorithm for non-parametric Response Surface Methodology - Poster at SRCOS/ASA Conference (with A. Padula, V. Torczon and M. Trosset) [Williamsburg, VA].
• (Spring 2000) Model-Assisted Pattern Search - Invited Talk for the William and Mary Board of Visitors.
• (William and Mary News 10/14/99) Mobil Acquires Math Student's Computer Program - About my Model-Assisted Pattern Search work.
• (Spring 1999) Batten Scholarship Proposal - Numerical Optimization of Expensive Computer Experiments.
• (Spring 1999) Numerical Experiments with Model-Assisted Pattern Search - For the Math 490-02 Conference on May 5, 1999.

Other Research

• (Spring 2000) Augustine of Hippo and Thomas Aquinas on Original Sin - Term paper for my Knowledge and Belief class.
• (Fall 1999) Augustine's view of Signification in On Christian Doctrine - Term paper for my World of Early Christianity class.
• (Spring 1999) Religious Freedom, International Law and the People's Republic of China - Term paper for my International Law class.