Density Functional Theory is one of the most successful approaches for computing the electronic structure of materials and is currently used to study thousand-atom systems today. The goals of this tutorial are two-fold. First, I will present the basic equations and ideas behind the solution of the many-body electronic Schrodinger equation throug...
Creator:
Meza, Juan C. (Lawrence Berkeley National Laboratory)
Created:
2008-09-26
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
To improve materials design, it is important to understand the influence ofmicrostructure on the physical properties of a material. Very often, it is the nucleation process that dictates the microstructure. We present some recentjoint works with colleagues at Penn State on the computational studies of criticalnuclei morphology, growth and coarse...
Creator:
Du, Qiang (The Pennsylvania State University)
Created:
2012-09-14
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Near absolute zero, a gas of quantum particles can condense into an unusual state of matter, called Bose-Einstein condensation (BEC), that behaves like a giant quantum particle. The rigorous connection has recently been made between the physics of the microscopic many-body dynamics and the mathematics of the macroscopic model, the cubic nonlinea...
Creator:
Kirkpatrick, Kay (University of Illinois at Urbana-Champaign)
Created:
2015-05-28
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In the recent literature on estimating heterogeneous treatment effects, each proposed method makes its own set of restrictive assumptions about the intervention’s effects and which subpopulations to explicitly estimate. Moreover, the majority of the literature provides no mechanism to identify which subpopulations are the most affected–beyon...
Creator:
McFowland, Edward (University of Minnesota, Twin Cities)
Created:
2018-11-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Much progress has been made on problems involving optimization of submodular functions under various constraints. However, the resulting algorithms, in particular the ones based on the 'multilinear relaxation', are often quite slow. In this talk, I will discuss some recent efforts on making these algorithms faster and more practical.We design ne...
Creator:
Vondrak, Jan (IBM Research Division)
Created:
2015-02-24
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Submodular functions capture a variety of discrete problems in machine learning, signal processing and computer vision. In these areas, practical algorithms are a major concern. Luckily, the submodular functions occurring in practice often have additional structure that can be exploited for practically efficient optimization algorithms.One such ...
Creator:
Jegelka, Stefanie (Massachusetts Institute of Technology)
Created:
2015-02-24
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Active learning is an important modern learning paradigm where thealgorithm itself can ask for labels of carefully chosen examples from alarge pool of unannotated data with the goal of minimizing human labelingeffort. In this talk, I will present a computationally efficient, noisetolerant, and label efficient active learning algorithm for learni...
Creator:
Balcan, Nina (Carnegie Mellon University)
Created:
2015-02-27
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I will describe work on three areas related to crowd-based user-centered modeling:1) Growing Lists: We want to combining the knowledge of many people (experts) in order to create 'sets' of things that go together, starting from a small seed. The experts have varying levels of expertise. This is the same problem that Google Sets was designed to s...
Creator:
Rudin, Cynthia (Massachusetts Institute of Technology)
Created:
2012-05-10
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.