Seminars and Colloquia by Series

Series: Other Talks
Saturday, February 23, 2013 - 08:30 , Location: Georgia State University , Georgia Scientific Computing Symposium , Georgia State University , Organizer: Haomin Zhou
The purpose of the GSC Symposium is to provide an opportunity for professors, postdocs, and graduate students in the Atlanta area to meet in an informal setting, to exchange ideas, and to highlight local scientific computing research. Certainly, the symposium is open to whole mathematics and computer sciences communities. The previous meetings were held at Emory University (2009), Georgia Institute of Technology (2010), Emory University (2011) and University of Georgia (2012). The 2013 GSC Symposium will be held at the Georgia State University campus and is organized by Alexandra Smirnova and Vladimir Bondarenko in the Department of Mathematics and Statistics, Georgia State. The following researchers have agreed to give invited plenary lectures: Hao Gao, Department of Mathematics and Computer Science, Department of Radiology and Imaging Sciences, Emory University; Guillermo Goldsztein, School of Mathematics, Georgia Institute of Technology; Yi Jiang, Department of Mathematics and Statistics, Georgia State University; Caner Kazanci, Department of Mathematics, University of Georgia; Brani Vidakovic, College of Engineering, Georgia Institute of Technology. There will be poster sessions. Anyone attending this symposium may present a poster. We especially encourage graduate students and postdocs to use this opportunity displaying their research results. Please register at the Symposium  website.
Series: Other Talks
Monday, February 18, 2013 - 17:00 , Location: Skiles 006 , Pedro Rangel, Luo Ye, Robert Krone , Georgia Tech , Organizer: Anton Leykin
We will discuss the details of the Markov bases chapter not covered in the previous talks.(Algebraic statistics reading seminar)
Series: Other Talks
Friday, February 15, 2013 - 14:00 , Location: Klaus 2443 , Jie Chen , Argonne National Laboratory , Organizer:

Hosted by the School of Computational Science and Engineering

As the term "big data'' appears more and more frequently in our daily life and research activities, it changes our knowledge of how large the scale of the data can be and challenges the application of numerical analysis for performing statistical calculations. In this talk, I will focus on two basic statistics problems sampling a multivariate normal distribution and maximum likelihood estimation and illustrate the scalability issue that dense numerical linear algebra techniques are facing. The large-scale challenge motivates us to develop scalable methods for dense matrices, commonly seen in statistical analysis. I will present several recent developments on the computations of matrix functions and on the solution of a linear system of equations, where the matrices therein are large-scale, fully dense, but structured. The driving ideas of these developments are the exploration of the structures and the use of fast matrix-vector multiplications to reduce the general quadratic cost in storage and cubic cost in computation. "Big data'' offers a fresh opportunity for numerical analysts to develop algorithms with a central goal of scalability in mind. It also brings in a new stream of requests to high performance computing for highly parallel codes accompanied with the development of numerical algorithms. Scalable and parallelizable methods are key for convincing statisticians and practitioners to apply the powerful statistical theories on large-scale data that they currently feel uncomfortable to handle.
Series: Other Talks
Monday, February 11, 2013 - 17:00 , Location: Skiles 006 , Robert Krone , Georgia Tech , Organizer: Anton Leykin
(algebraic statistics reading seminar)
Series: Other Talks
Saturday, February 9, 2013 - 09:00 , Location: Georgia State University , Van Vu , Yale University , Organizer: Xingxing Yu
Emory University, the Georgia Institute of Technology and Georgia State University, with support from the National Security Agency and the National Science Foundation, are hosting a series of mini-conferences. The eighth in the series will be held at Georgia State University on February 9 -10, 2013. This mini-conference's featured speaker is Dr. Van Vu, who will give two one-hour lectures. There will be five one-hour talks and a number of half-hour talks given by other invited speakers. For more info, check titles, abstracts, and schedule.
Series: Other Talks
Friday, February 8, 2013 - 14:00 , Location: Klaus 2443 , Chris Rycroft , UC Berkeley and LBNL , Organizer:

School of Computational Science and Engineering job candidate talk

Metallic glasses are a new type of alloy whose atoms have an amorphous arrangement in contrast to most metals. They have many favorable properties such as excellent wear resistance and high tensile strength, but are prone to breakage in some circumstances, depending on their method of preparation. The talk will describe the development of a quasi-static projection method within an Eulerian finite-difference framework, for simulating a new physical model of a metallic glass. The simulations are capable of resolving the multiple timescales that are involved, and provide an explanation of the experimentally observed differences in breakage strength, which may aid in the use of these materials in practical applications. The same Eulerian simulation framework can be adapted to address a variety of other problems, such as fluid-structure interaction, and the mechanical modeling of multicellular clusters.
Series: Other Talks
Monday, February 4, 2013 - 17:00 , Location: Skiles 006 , Luo Ye , Georgia Tech , Organizer: Anton Leykin
(algebraic statistics reading seminar)
Series: Other Talks
Monday, January 28, 2013 - 17:00 , Location: Skiles 006 , Pedro Rangel , Georgia Tech , Organizer: Anton Leykin
(algebraic statistics reading seminar)
Series: Other Talks
Thursday, January 24, 2013 - 16:30 , Location: Clough Commons Auditorium , Charlie Crawford , School of Mathematics, Alumnus , Organizer:

Mr. Crawford grew up near Philadelphia and has a B.S. in Applied Mathematics
from Georgia Tech. He served as an Air Force officer, retiring as a colonel in
1996. In addition to being a member of Georgia Battlefields Association and the
Civil War Round Table of Atlanta, Charlie is a life member of the Civil War
Trust.

Charlie Crawford, president of Georgia Battlefields Association, explores the significance of the fall of Atlanta to Lincoln's re-election as President and examines George Barnard's photographic documentation of the battlefields around Atlanta. Crawford will discuss how land that is now a part of Georgia Tech's campus was once the site of Confederate and Federal fortifications. As president of Georgia Battlefields Association, a non-profit battlefield preservation group, Mr. Crawford has made over 95 presentations and led over 35 tours relating to the Civil War in Georgia.
Series: Other Talks
Monday, January 14, 2013 - 17:00 , Location: Skiles 006 , organizational meeting , Georgia Tech , Organizer: Anton Leykin

From the publisher's website: "... The goal of these lectures is to introduce newcomers from the different
camps to algebraic statistics. The introduction will be centered around
the following three observations: many important statistical models
correspond to algebraic or semi-algebraic sets of parameters; the
geometry of these parameter spaces determines the behaviour of widely
used statistical inference procedures; computational algebraic geometry
can be used to study parameter spaces and other features of statistical
models... " 

This reading seminar may be of interest to both algebraists and statisticians; everyone is welcome to join. As the main text we will use "Lectures on algebraic statistics" by Drton, Sturmfels, and Sullivant: http://www.springer.com/birkhauser/applied+probability+and+statistics/bo... 

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