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Events for October 03, 2006
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Moorpark College Transfer Fair
Tue, Oct 03, 2006 @ 10:00 AM - 01:00 PM
Viterbi School of Engineering Undergraduate Admission
Workshops & Infosessions
Julie Samere, Assistant Director of Undergraduate Admission, will be attending the Moorpark Transfer Fair. Please stop by to receive more information about the USC Viterbi School of Engineering and transfer admission details.
Location: Moorpark College
Audiences: Prospective Transfer Students
Contact: Undergraduate Admission
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ENSEMBLE UNCERTAINTY QUANTIFICATION
Tue, Oct 03, 2006 @ 11:00 AM - 12:00 PM
Sonny Astani Department of Civil and Environmental Engineering
Conferences, Lectures, & Seminars
Speaker:Dr. Steven F. Wojtkiewicz
Department of Civil Engineering
University of Minnesota
ykvich@umn.edu Abstract:
This presentation addresses the need for the development of uncertainty quantification algorithms that leverage information from one realization to another. Although the size of the computational models used in many engineering and scientific simulations is extremely large, i.e. millions of equations, the uncertainty to be analyzed is oftentimes very localized to small regions of the model. One example of this manifests itself in a study of the effects of damping in connections between structural dynamic subsystems. While the full analysis model for this system is on the order of a million degrees of freedom, the nodes involved in an uncertainty analysis of the connection is on the order of ten. Here, recent efforts to explore, expand, and develop UQ methods that exploit this localization of uncertainty will be discussed.
Algorithms for linear algebraic and dynamic systems have been developed and will be outlined. In addition, their efficacy will be demonstrated through several examples. These algorithms utilize linear algebra techniques for low rank matrix updates, Sherman-Morrison-Woodbury formulas, and their dynamical analogs. The computational procedure consists of a small number of full system runs, the number of nodes involved in the connections in the abovementioned scenario. The solutions from this small number of runs are then used to construct a solution update procedure where the remaining computation for each realization involves a system solution of this greatly reduced size.
The ratio of the cost of each subsequent realization after these initial calculations to a full system solution is on the order of the ratio of the number of degrees of freedom of the full system model to that involving uncertainty. Thus, one can expect speedups of several orders of magnitude for the subsequent realizations. In addition, the system updates, due to the small systems being solved, can be performed using a wider variety of computing resources.
It is foreseen that the greatly increased number of realizations can be used to obtain greater fidelity in failure assessments (smaller failure probabilities) and/or to address the epistemic uncertainty issue by considering alternate plausible uncertainty models, including interval models, for the parameters being studied.Prof. Steve Wojtkiewicz received his Ph. D. in Aeronautical and Astronautical Engineering in 2000 from the University of Illinois at Urbana-Champaign. After graduating, he joined Sandia National Laboratories in Albuquerque, New Mexico where he was a member of the technical staff in the Structural Dynamics Research Department from 2000-2004. He held research appointments at Johns Hopkins University and the University of Southern California before joining the faculty at the University of Minnesota in the Department of Civil Engineering in August 2005. His research interests include the optimization, dynamic analysis and control of large structural systems and the development of uncertainty quantification and validation algorithms for large computational models.Location: Kaprielian Hall (KAP) - 203
Audiences: Everyone Is Invited
Contact: Evangeline Reyes
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Preparing for the Engineering Career Fair
Tue, Oct 03, 2006 @ 12:00 PM - 12:50 PM
Viterbi School of Engineering Career Connections
Workshops & Infosessions
Make a great first impression! Learn how to optimize your time, approach employers and prepare for the recruiting event of the semester.
Location: Ronald Tutor Hall of Engineering (RTH) - 211
Audiences: Everyone Is Invited
Contact: RTH 218 Viterbi Career Services
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Undergraduate Time-Management Workshop
Tue, Oct 03, 2006 @ 05:00 PM - 07:00 PM
Viterbi School of Engineering Student Affairs
Workshops & Infosessions
Wondering where all your time goes? Do you feel like you need more hours in a day to get everything done? This workshop will provide students an opportunity to assess the way they spend their time and identify barriers to good time-management.
Location: Ronald Tutor Hall of Engineering (RTH) - 211
Audiences: Undergrad
Contact: Monica De Los Santos
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SWE 3rd General Meeting - Self-Defense Workshop
Tue, Oct 03, 2006 @ 06:00 PM - 07:00 PM
Viterbi School of Engineering Student Organizations
Student Activity
Want to learn some basic self-defense techniques? Come to our third general SWE meeting on Tuesday, October 3rd at 6 PM in SOS B46, where a self-defense instructor will demonstrate the correct ways to protect yourself. Food will be provided.
Location: Social Sciences Building (SOS) - B46
Audiences: Everyone Is Invited
Contact: Society of Women Engineers
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C.W. Driver Information Session
Tue, Oct 03, 2006 @ 06:00 PM - 07:00 PM
Viterbi School of Engineering Career Connections
Student Activity
Join representatives of this company as they share general company information and available opportunities.
Location: Ronald Tutor Hall of Engineering (RTH) - 211
Audiences: Everyone Is Invited
Contact: RTH 218 Viterbi Career Services
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Society of Petroleum Engineers: 1st General Meeting
Tue, Oct 03, 2006 @ 06:00 PM - 07:00 PM
Viterbi School of Engineering Student Organizations
Student Activity
Ãâ Society of Petroleum Engineers is holding their first General Meeting. Come have pizza and find out about the energy industry and the connections available through SPE. We will be going over our events for the rest of the year!
Location: Hedco Pertroleum and Chemical Engineering Building (HED) - 116
Audiences: Everyone Is Invited
Contact: Society of Petroleum Engineers
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Teradyne
Tue, Oct 03, 2006 @ 06:00 PM - 07:00 PM
Viterbi School of Engineering Career Connections
Workshops & Infosessions
Join representatives of this company as they share general company information and available opportunities.
Location: Seeley G. Mudd Building (SGM) - 101
Audiences: Undergraduate and Graduate Students
Contact: RTH 218 Viterbi Career Services
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EGSA Welcome Party & General Meeting
Tue, Oct 03, 2006 @ 06:30 PM - 09:30 PM
Sonny Astani Department of Civil and Environmental Engineering
Student Activity
Come out for some fun and games!
Meet fellow graduate engineers.
Food from India, China, Italy, & Iran!Who: All Graduate Engineers & DependantsWhen: Oct. 3, 2006, 6:30-9:30pm
Where: Ground ZeroFree Food
Music & GamesSponsored by Engineering Graduate School Associationwww-scf.usc.edu/~egsa
Location: Ground Zero
Audiences: Everyone Is Invited
Contact: Linda Mizushima
