Leveraging Peer Support to Enhance Learning

Speaker: 

James Rolf

Institution: 

Yale

Time: 

Friday, February 2, 2018 - 3:00pm to 4:00pm

Host: 

Location: 

RH 306

I will talk about the use of peers to enhance learning in three different contexts.  The first context is a flipped integral calculus course. Students are expected to prepare for class ahead of time by watching video(s) and taking online quizzes.  The instructor accesses the quiz data before class and uses student responses to tailor the classroom instruction. In-class time focuses on extending student understanding with a variety of active learning techniques, including peer-to-peer instruction. I will report the data we have collected about the impact of this experience on  both student attitudes and learning.

The second context is a summer online bridge program for incoming students. We utilize undergraduate coach/mentors to meet online virtually with a team of 4-5 incoming students throughout the summer to help close some of their mathematical gaps.  I will describe the design of this program, how it enhances Yale's desire to recruit and retain a diverse student body, and the impact it has on student attitudes and learning. I will also highlight data that describes the impact of peer coaches on both learning and the motivation to learn.

The third context is a systematic supervised reading/research program for ~1200 math majors at UC Irvine.  I will provide some suggestions for how this program might be structured to leverage advanced undergraduates and graduate students to help motivated math majors.

 

 

Jump Labs: An Experiment in Research and Recruiting for High Frequency Trading

Speaker: 

Jeff Ludwig

Institution: 

Jump Trading

Time: 

Wednesday, January 31, 2018 - 4:00pm to 5:00pm

Host: 

Location: 

RH 306

For 3 years I served as the Director of Jump Labs, a new endeavor for cutting-edge research and recruiting launched by Jump Trading, a quantitative high frequency trading firm based in Chicago. 
Jump Labs sponsors research in high performance computing and data science via gifts grants involving:

  • Mentors from Jump Trading and Jump Venture Capital portfolio companies who guide the research along with University of Illinois professors
  • Jump Trading proprietary data: ~50 PB of historical market microstructure data from 60 exchanges around the world
  • Supercomputer grid resources
  • Office space at Jump Labs in the University of Illinois Research Park

The crux is to create a long term and powerful pipeline for talent acquisition by challenging the faculty and students with real-world problems. The structure aligns relevant industrial research with the passions and expertise of the faculty member and students. Opportunities for publication are encouraged.  In our first two years we sponsored over 60 undergraduate and graduate students and 20 professors spanning 25 projects. The structure seeks to advance relevant research and creates a powerful recruiting pipeline for talent that is long term and low risk.

We will discuss the successes and challenges encountered at Jump Labs in its first three years.

Research with Undergraduates - Successes and Pitfalls

Speaker: 

Maryann Hohn

Institution: 

UCSB

Time: 

Monday, January 29, 2018 - 4:00pm to 5:00pm

Host: 

Location: 

RH 306

Undergraduates are curious about research in mathematics: what kinds of questions do mathematicians ask, what does research entail, how do you begin to solve a new problem. In this talk, we will discuss integrating undergraduate research projects inside the classroom and how to expose students to new mathematical questions in both upper and lower division courses. We will then talk more generally about setting students up for success in the classroom.

Teaching large scale optimization at the undergraduate level

Speaker: 

Daniel O'Connor

Institution: 

UCLA

Time: 

Friday, January 19, 2018 - 3:00pm to 4:00pm

Location: 

RH 306

Proximal algorithms offer state of the art performance for many large scale optimization problems. In recent years, the proximal algorithms landscape has simplified, making the subject quite accessible to undergraduate students. Students are empowered to achieve impressive results in areas such as image and signal processing, medical imaging, and machine learning using just a page or two of Python code. In this talk I'll discuss my experiences teaching proximal algorithms to students in the Physics and Biology in Medicine program at UCLA. I'll also share some of my teaching philosophy and approaches to teaching undergraduate math courses. Finally, I'll discuss my own research in optimization algorithms for radiation treatment planning, which is a fruitful source of undergraduate research projects.
 

Invertibility and spectrum of random matrices: a convex-geometric approach

Speaker: 

Konstantin Tikhomirov

Institution: 

Princeton University

Time: 

Thursday, January 18, 2018 - 4:00pm to 5:00pm

Host: 

Location: 

RH 306

Convex-geometric methods, involving random projection operators and coverings, have been successfully used in the study of the largest and smallest singular values, delocalization of eigenvectors, and, among further applications, in establishing the limiting spectral distribution for certain random matrix models. Conversely, random linear operators play a very important role in high-dimensional convex geometry, as a tool in constructing special classes of convex sets and studying sections and projections of convex bodies. In this talk, I will discuss some recent results (by my collaborators and myself) on the borderline between convex geometry and the theory of random matrices, focusing on invertibility of square non-Hermitian random matrices (with applications to the study of the limiting spectral distribution), edges of the spectrum of sample covariance matrices, as well as some applications of random operators to questions in high-dimensional convex geometry.

Fundamental groups in arithmetic and geometry

Speaker: 

Daniel Litt

Institution: 

Columbia University

Time: 

Wednesday, January 17, 2018 - 4:00pm to 5:00pm

Host: 

Location: 

RH 306

Let X be an algebraic variety -- that is, the solution set to a system of polynomial equations.  Then the fundamental group of X has several incarnations, reflecting the geometry, topology, and arithmetic of X.  This talk will discuss some of these incarnations and the subtle relationships between them, and will describe an ongoing program which aims to apply the study of the fundamental group to classical problems in algebraic geometry and number theory.

Noetherianity in representation theory

Speaker: 

Steven Sam

Institution: 

University of Wisconsin, Madison

Time: 

Monday, January 8, 2018 - 3:00pm to 4:00pm

Host: 

Location: 

RH 306

Representation stability is an exciting new area that combines ideas from commutative algebra and representation theory. The meta-idea is to combine a sequence of objects together using some newly defined algebraic structure, and then to translate abstract properties about this structure to concrete properties about the original object of study. Finite generation is a particularly important property, which translates to the existence of bounds on algebraic invariants, or some predictable behavior. I'll discuss some examples coming from combinatorial representation theory (Kronecker coefficients) and topology (configuration spaces).

Regularity vs. Singularity for Elliptic and Parabolic Systems

Speaker: 

Connor Mooney

Institution: 

ETH Zurich

Time: 

Tuesday, January 9, 2018 - 4:00pm to 5:00pm

Host: 

Location: 

TBD

Hilbert's 19th problem asks if minimizers of "natural" variational integrals are smooth. For the past century, this problem inspired fundamental regularity results for elliptic and parabolic PDEs. It also led to the construction of several beautiful counterexamples to regularity. The dichotomy of regularity vs. singularity is related to that of single PDE (the scalar case) vs. system of PDEs (the vectorial case), and low dimension vs. high dimension. I will discuss some interesting recent counterexamples to regularity in low-dimensional vectorial cases, as well as outstanding open problems. Parts of this are joint works with A. Figalli and O. Savin.

Algebraic constructions of Markov duality functions

Speaker: 

Jeffrey Kuan

Institution: 

Columbia University

Time: 

Friday, December 8, 2017 - 3:00pm to 4:00pm

Location: 

RH 306

Markov duality in spin chains and exclusion processes has found a wide variety of applications throughout probability theory. We review the duality of the asymmetric simple exclusion process (ASEP) and its underlying algebraic symmetry. We then explain how the algebraic structure leads to a wide generalization of models with duality, such as higher spin exclusion processes, zero range processes, stochastic vertex models, and their multi-species analogues.

Stability in the homology of configuration spaces

Speaker: 

Jennifer Wilson

Institution: 

Stanford University

Time: 

Monday, November 20, 2017 - 4:00pm

Host: 

Location: 

RH 306

This talk will illustrate some topological properties of the space F_k(M) of ordered k-tuples of distinct points in a manifold M. For a fixed manifold M, as k increases, we might expect the topology of the configuration spaces F_k(M) to become increasingly complicated. Church and others showed, however, that when M is connected and open, there is a representation-theoretic sense in which these configuration spaces stabilize. In this talk I will explain these stability patterns, and describe a higher-order “secondary representation stability” phenomenon among the unstable homology classes. These results may be viewed as a representation-theoretic analogue of current work of Galatius–Kupers–Randal-Williams. The project is joint with Jeremy Miller.

Pages

Subscribe to RSS - Special Colloquium