Abstract: The Kaczmarz algorithm is a method for solving linear systems of equations that was introduced in 1937. The algorithm is a powerful tool with many applications in signal processing and data science that has enjoyed a resurgence of interest in recent years. We'll discuss some of the history of the Kaczmarz algorithm as well as describ...
Creator:
Weber, Eric (Iowa State University)
Created:
2022-04-26
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
If A is a finite-dimensional algebra with automorphism group G, then varieties of generating r-tuples of elements in A, considered up to G-action, produce a sequence of varieties B(r) approximating the classifying space BG. I will explain how this construction generalizes certain well-known examples such as Grassmannians and configuration spaces...
Creator:
Williams, Ben (University of British Columbia)
Created:
2022-08-05
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In this talk, Hande will give an overview of some of the best practices a data scientist should know. These will include topics like virtual environments, utilizing functions, code documentation and other things that you could start incorporating in your data science projects or coding in general. She will also include some quick tips and advice...
Creator:
Tuzel, Hande (Sabre Corporation)
Created:
2022-02-11
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The Milnor–Moore theorem identifies a large class of Hopf algebras as enveloping algebras of the Lie algebras of their primitives. If we broaden our definition of a Hopf algebra to that of a braided Hopf algebra, much of this structure theory falls apart. The most obvious reason is that the primitives in a braided Hopf algebra no longer form a L...
Creator:
Westerland, Craig (University of Minnesota, Twin Cities)
Created:
2022-08-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Value creation in private equity investment portfolios is fundamental to delivering results for PE customers. Our focus is in the energy and transportation sectors, and by having deep understanding of how these industries work, we explore applications where advanced analytics and better use of data can create more efficient operations and growth...
Creator:
Einset, Erik (Global Infrastructures Partners)
Created:
2022-04-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This talk will describe a suite of physically inspired instruments we've developed to enable exploration of large-scale text data, illuminate collective behavioral patterns, and develop a science of stories. Along with our flagship efforts at http://hedonometer.org and https://storywrangling.org we show how Instagram photos reveal markers of dep...
Creator:
Kileel, Joe (The University of Texas at Austin)
Created:
2022-02-08
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Topological Azumaya algebras are topological shadows of more complicated algebraic Azumaya algebras defined over, for example, schemes. Tensor product is a well-defined operation on topological Azumaya algebras. Hence given a topological Azumaya algebra $\mathcal{A}$ of degree $mn$, where $m$ and $n$ are positive integers, it is a natural questi...
Creator:
Arcila-Maya, Niny (Duke University)
Created:
2022-08-03
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In order to incorporate ideas from algebraic topology in concrete contexts such as topological data analysis and topological lattice field theories, one needs effective constructions of concepts defined only abstractly or axiomatically. In this talk, I will discuss such constructions for certain invariants derived from the cup product on the coh...
Creator:
Medina-Mardones, Anibal (Max Planck Institute for Mathematics)
Created:
2022-08-02
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Food has always been a part of Emilee Xayanourom's life. She grew up making and eating authentic Lao dishes, and now owns a food truck with her family so that she can share her love of food with others in Minnesota.
Creator:
Xayanourom, Emilee
Contributor:
Rolland, Isabella
Created:
2022-04-19
Contributed By:
University of Minnesota, Immigration History Research Center
I will talk about equivariant homotopy theory and its role in the proof of the Segal conjecture and the Kervaire invariant one problem. Then, I will talk about chromatic homotopy theory and its role in studying the stable homotopy groups of spheres. These newly established techniques allow one to use equivariant machinery to attack chromatic com...
Creator:
Shi, XiaoLin (Danny) (University of Chicago)
Created:
2022-08-04
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Ernesto's granddaughter Isabel talks about her experienes being from an immigrant family. Then, Ernesto is interviewed about his life in the Philippines and his perspective on his life as an immigrant in the U.S.
Creator:
Laderman, Isabel
Contributor:
Rolland, Isabella
Created:
2022-04-12
Contributed By:
University of Minnesota, Immigration History Research Center
Clustering algorithms based on mean shift or spectral methods on graphs are ubiquitous in data analysis. However, in practice, these two types of algorithms are treated as conceptually disjoint: mean shift clusters based on the density of a dataset, while spectral methods allow for clustering based on geometry. In joint work with Nicolás ...
Creator:
Craig, Katy (University of California, Santa Barbara)
Created:
2022-02-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I will share some reminiscences of my many years working with Gunnar. The career that I have had would not have been possible without his kindness, wisdom, and generosity.
Creator:
de Silva, Vin (Pomona College)
Created:
2022-08-04
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The Gromov-Hausdorff distance between two metric spaces is an important tool in geometry, but it is difficult to compute. For example, the Gromov-Hausdorff distance between unit spheres of different dimensions is unknown in nearly all cases. I will introduce recent work by Lim, Mémoli, and Smith that finds the exact Gromov-Hausdorff distances be...
Creator:
Adams, Henry (Colorado State University)
Created:
2022-08-04
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Configuration spaces of disks in a region of the plane vary according to the radius of the disks, and their topological invariants such as homology also vary. Realizing a given homology class means coordinating the motion of several disks, and if there is not enough space for the disks to move, the homology class vanishes. We explore how cluster...
Creator:
Alpert, Hannah (Auburn University)
Created:
2022-08-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Modern learning algorithms such as deep neural networks operate in regimes that defy the traditional statistical learning theory. Neural networks architectures often contain more parameters than training samples. Despite their huge complexity, the generalization error achieved on real data is small. In this talk, we aim to study the generalizati...
Creator:
Seroussi, Inbar (Weizmann Institute of Science)
Created:
2022-04-12
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Many diseases are complex heterogeneous conditions that affect multiple organs in the body and depend on the interplay between several factors that include molecular and environmental factors, thus requiring a holistic approach in understanding the complexity and heterogeneity. In this talk, I will present some of our current statistical and ma...
Creator:
Safo, Sandra (University of Minnesota, Twin Cities)
Created:
2022-02-22
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In the context of numerical linear algebra algorithms, where it is natural to sacrifice accuracy in return for quicker computation of solutions whose errors are only slightly larger than optimal, the time-accuracy tradeoff of randomized sketching has been well-characterized. Algorithms such as Blendenpik and LSRN have shown that carefully design...
Creator:
Gittens, Alex (Rensselaer Polytechnic Institute)
Created:
2022-01-25
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Margaret Deirdre O'Hartigan is an Irish Catholic transsexual woman, transsexual health and rights activist, writer, and retired secretary and typesetter living in Portland, Oregon. Prior to her retirement, O'Hartigan was involved in a number of trans civil rights and nondiscrimination campaigns in Oregon, Washington, and Minnesota, including suc...
Creator:
O'Hartigan, Margaret Deirdre (interviewee)
Contributor:
Billund-Phibbs, Myra (interviewer, project manager, and transciber)
Created:
2022-04-06
Contributed By:
University of Minnesota Libraries, Jean-Nickolaus Tretter Collection in Gay, Lesbian, Bisexual and Transgender Studies.
Lillian Gamm arrived at Ellis Island from Russia on April 19, 1910. While living in Manhattan, she worked hard as a bookkeeper, raised a family, and pursued her dreams.
Creator:
Feldman, Jonah
Contributor:
Rolland, Isabella
Created:
2022-05-02
Contributed By:
University of Minnesota, Immigration History Research Center
We develop a theory of limits for sequences of dense abstract simplicial complexes, where a sequence is considered convergent if its homomorphism densities converge. The limiting objects are represented by stacks of measurable [0,1]-valued functions on unit cubes of increasing dimension, each corresponding to a dimension of the abstract simplici...
Creator:
Segarra, Santiago (Rice University)
Created:
2022-08-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Luu Nhat Tam Ngyuen moved to the U.S. with her mom and dad in 2019. Unfortunately, her sister was not able to join them because of her age. Luu Nhat Tam is the only person who can speak English in her family.
Creator:
Nguyen, Luu Nhat Tam
Contributor:
Rolland, Isabella
Created:
2022-05-09
Contributed By:
University of Minnesota, Immigration History Research Center
In this talk, I focus on the multivariate method of moments for parameter estimation. First from a theoretical standpoint, we show that in problems where the noise is high, the number of observations necessary to estimate parameters is dictated by the moments of the distribution. Second from a computational standpoint, we address the curse of di...
Creator:
Pereira, Joao (The University of Texas at Austin)
Created:
2022-04-05
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
A well-known and very useful result in algebraic topology is the statement that the Euler characteristic of G/N(T) in singular cohomology is 1, where G is a compact Lie group and N(T) is the normalizer of a maximal torus. In the presence of a transfer map as constructed by Becker and Gottlieb the above result shows that in any generalized cohomo...
Creator:
Joshua, Roy (The Ohio State University)
Created:
2022-08-02
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Adversarial training is a framework widely used by machine learning practitioners to enforce robustness of learning models. Despite the development of several computational strategies for adversarial training and some theoretical development in the broader distributionally robust optimization literature, there are still several theoretical quest...
Creator:
Garcia Trillos, Nicolas (University of Wisconsin, Madison)
Created:
2022-03-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Mathematics students learn a powerful technique for proving theorems about an arbitrary natural number: the principle of mathematical induction. This talk introduces a closely related proof technique called "path induction," which can be thought of as an expression of Leibniz's "indiscernibility of identicals": if x and y are identified, then th...
Creator:
Riehl, Emily (Johns Hopkins University)
Created:
2022-08-03
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Cohomological ideas have recently been injected into persistent homology and have for example been used for accelerating the calculation of persistence diagrams by softwares, such as Ripser. The cup product operation which is available at cohomology level gives rise to a graded ring structure that extends the usual vector space structure and is ...
Creator:
Zhou, Ling (The Ohio State University)
Created:
2022-08-02
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Persistent homology is a main tool in topological data analysis. So it is natural to ask how strong this quantifier is and how much information is lost. There are many ways to ask this question. Here we will concentrate on the case of level set filtrations on simplicial sets. Already the example of a triangle yields a rich structure with the Möb...
Creator:
Tillmann, Ulrike (University of Oxford)
Created:
2022-08-03
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I will review the theory of ramification in number theory and then show that being totally ramified or unramified is equivalent to a natural condition in higher algebra. This leads to a much simplified calculation of THH of a ring of integers in a number field, relying on ramified descent (a kind of weaker etale descent).
Creator:
Berman, John (University of Massachusetts)
Created:
2022-08-03
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The assumption that high dimensional data is Gaussian is pervasive in many statistical procedures, due not only to its tail decay, but also to the level of analytic tractability this special distribution provides. We explore the relaxation of the Gaussian assumption in Single Index models and Shrinkage estimation using two tools that originate i...
Creator:
Goldstein, Larry (University of Southern California)
Created:
2022-03-29
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Sarah Reyes was born in the Phlippines and moved to the U.S. when she was in middle school. Though she faced a lot of racial discrimination in her first years of being here, she eventually found a Filipino American community that she is proud to be a part of now.
Creator:
Haakonsen, Malia
Contributor:
Rolland, Isabella
Created:
2022-05-02
Contributed By:
University of Minnesota, Immigration History Research Center
Federated machine learning (FL) is gaining a lot of traction across research communities and industries. FL allows machine learning (ML) model training without sharing data across different parties, thus natively supporting data privacy. However, designing and executing FL jobs is not an easy task today. Flame is an open-source project that aims...
Creator:
Le, Myungjin (Cisco)
Created:
2022-04-29
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I would like to talk about the interaction of traditional algebraic topology and homotopy theory with applied topology, and specifically describe specifically some opportunities for better integration of "higher tech" techniques into applications.
Creator:
Carlsson, Gunnar (Stanford University)
Created:
2022-08-05
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In recent years, the need to accommodate non-Euclidean structures in data science has brought a boom in deep learning methods on graphs, leading to many practical applications with commercial impact. In this talk, we will review the mathematical foundations of the generalization capabilities of graph convolutional neural networks (GNNs). We will...
Creator:
Levie, Ron (Ludwig-Maximilians-Universität München)
Created:
2022-02-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
To understand the function of neurons, as well as other types of cells in the brain, it is essential to analyze their shape. Perhaps unsurprisingly, topology provides us with tools ideally suited to performing such an analysis. In this talk I will present a selection of the results of a long-standing collaboration with Lida Kanari of the Blue Br...
Creator:
Kathryn Hess-Bellwald, Kathryn (École Polytechnique Fédérale de Lausanne (EPFL))
Created:
2022-08-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In this talk I will give an overview of two related projects. The first project concerns the high-degree rational cohomology of the special linear group of a number ring R. Church--Farb--Putman conjectured that, when R is the integers, these cohomology groups vanish in a range close to the virtual cohomological dimension. The groups SL_n(R) sati...
Creator:
Wilson, Jenny (University of Michigan)
Created:
2022-08-03
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The game of football is undergoing a significant shift towards the quantitative. Much of the progress made in the analytics space can be attributed to play-by-play data and charting data. However, recent years have given rise to tracking data, which has opened the door for innovation that was not possible before. In this talk I will describe ho...
Creator:
Eager, Eric (ProFootballFocus
Created:
2022-02-18
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Multimorbidity, the coexistence of two or more health conditions, has become more prevalent as mortality rates in many countries have declined and their populations have aged. Multimorbidity presents significant difficulties for Clinical Decision Support Systems (CDSS), particularly in cases where recommendations from relevant clinical guideline...
Creator:
Michalowski, Martin (University of Minnesota, Twin Cities)
Created:
2022-03-22
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I'll discuss a method for approximating the super-level set persistent homology of a Gaussian kernel density estimator for a point cloud data set, which is related to the witness complex. Instead of selecting elements of the data set, the witnesses are generated using quadratic programming, and the shifted Voronoi diagram (aka the power diagram)...
Creator:
Carlsson, Erik (University of California, Davis)
Created:
2022-08-02
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Yeshi Gongpatsang was forced to flee her home country of Tibet in 1969 when the Chinese Communist Party invaded. When she came to the U.S., she still risked her life by doing a hunger strike to raise awareness about injustices in Tibet.
Creator:
Lobsang, Ngawang
Contributor:
Rolland, Isabella
Created:
2022-04-26
Contributed By:
University of Minnesota, Immigration History Research Center
Yubin Sun was born in South Korea, went to college in Japan, and is now an international student at the University of Minnesota. Her journey was delayed because of Covid-19, but she is grateful for her experiences.
Creator:
Sun, Yubin
Contributor:
Rolland, Isabella
Created:
2022-04-26
Contributed By:
University of Minnesota, Immigration History Research Center
The Metropolis Algorithm is an extremely useful and popular method of approximately sampling from complicated probability distributions. "Adaptive" versions automatically modify the algorithm while it runs, to improve its performance on the fly, but at the risk of destroying the Markov chain properties necessary for the algorithm to be valid. I...
Creator:
Rosenthal, Jeffrey (University of Toronto)
Created:
2021-03-23
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Each of these three posters contains digital art offering a piece of advice during the COVID-19 pandemic. The first poster contains a digital drawing of a person with long blond hair sitting in a cross-legged position with their eyes closed. Text at the top of the poster reads: "meditation." Text at the bottom of the poster reads: "Take time out...
Creator:
Wertish, Sydney
Created:
2021-09
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
In many scientific areas, a deterministic model (e.g., a differential equation) is equipped with parameters. In practice, these parameters might be uncertain or noisy, and so an honest model should provide a statistical description of the quantity of interest. Underlying this computational question is a fundamental one - If two "similar" functio...
Creator:
Sagiv, Amir (Columbia University)
Created:
2021-01-26
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Going from a scientific background into something that people haven't done comes with moments where you don't know what you're talking about... if you talk, that is. Admitting the times you don't know how your work can help and introducing your work when it may be able to help - that timing can be hard. I went from the field I was trained in...
Creator:
Oliver, Dean ( NBA's Washington Wizards)
Created:
2021-09-10
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Betula Ali's family moved from Somalia to Ethiopia during a war. They came to the U.S. in 2012. Though it has taken them some time to navigate the new culture, weather, and language, they have overcame all of their challenges by supporting each other.
Creator:
Ali, Betula
Contributor:
Rolland, Isabella
Created:
2021-12-13
Contributed By:
University of Minnesota, Immigration History Research Center
Bridget Feeney grew up in the rural countryside of Ireland. She moved to the U.S. in 1900 to follow in her older sister's footsteps, and made a life for herself in Boston. Her great great granddaughter tells her story.
Creator:
Ferry, Jack
Contributor:
Rolland, Isabella
Created:
2021-12-02
Contributed By:
University of Minnesota, Immigration History Research Center
This bulletin board was posted in the College of Science and Engineering on the University of Minnesota Duluth campus. The first photograph shows the whole bulletin board, which is labeled "ELECTRICAL ENGINEERING" in large text. An instruction sheet reads: "Okay, real talk. 2020 has flipped our world upside down. Here's a space where you can sha...
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
These three photographs show many chairs of different types stacked in areas in a library building that are normally open spaces, some blocking shelves of books. From the creator: "These photos were taken on March 23, 2021 at UMD, in the Library Annex. My office is in the Annex, which is currently closed. To encourage social distancing in the ma...
Creator:
Aue, Shana
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Christopher Chavez's grandmother was born in El Salvador and his grandfather was born in Mexico. They met in Texas and moved into a house that Christopher was raised in. He reflects on his life with his family.
Creator:
Chavez, Christopher
Contributor:
Rolland, Isabella
Created:
2021-09-05
Contributed By:
University of Minnesota, Immigration History Research Center
This sign was on the doors to the Library Annex building throughout Fall 2020 and Spring 2021. It reads: "The Library Annex is Closed for the Fall Semester. Need to connect with our Archives & Special Collections Department? If you need to connect with our Archives & Special Collections Department, please reach out to our Archives staff at: [con...
Creator:
Aue, Shana
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
3D printing and design allows us to physically experience complex mathematical objects. In this talk we’ll take a 3D-printed tour of mathematical knots, tessellations, fractals, and polyhedra. Using code and generative design we can create parametric models that leverage randomness to achieve structural variety or even organic-looking behavior. ...
Creator:
Taalman, Laura (James Madison University)
Created:
2021-02-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The leading eigenvalue problem of a differential operator arises in many scientific and engineering applications, in particular quantum many-body problems. Due to the curse of dimensionality conventional algorithms become impractical due to the huge computational and memory complexity. In this talk, we will discuss some of our recent works on d...
Creator:
Lu, Jianfeng (Duke University)
Created:
2021-03-02
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This sign was placed outside the bookstore in Kirby Center at UMD in the Spring of 2021 during the COVID-19 pandemic. The sign reads: "STOP THE SPREAD OF COVID-19. FACE COVERINGS REQUIRED. FOR YOUR SAFETY: Customers limited to 38; Practice physical distancing by following signs and floor arrows; Properly wear face covering. Both your nose and mo...
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
The sign is affixed to the fountain and reads: "USE ONLY THE NO-TOUCH BOTTLE FILLER. Fountain is 'out' of 'order.' I mean, not really. But don't be a weirdo and use the fountain."
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
There are two signs on the door. The larger sign is red and gold (UMD's colors) and has a line drawing of a face mask. It reads: "+ STOP THE SPREAD OF COVID-19 + FACE COVERING REQUIRED. SEE ALL SAFETY GUIDELINES: [URL]." The smaller, postcard-sized sign is blue with yellow lettering and has an illustration of blue string lights. It reads: "THANK...
Creator:
Aue, Shana
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
From the creator: "This is a photo of me getting my first dose of the Moderna vaccine on Saturday, March 27, 2021. I was on a list that a local pharmacist was maintaining of people who could come in on short notice and receive doses that were about to expire. This dose, which I received at around 4:30 pm, was scheduled to expire at 5 pm. There w...
Creator:
Aue, Shana
Created:
2021-03-27
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
A small group of people waiting to be vaccinated in the Great Hall at the Duluth Depot. Also visible are chairs for waiting the required fifteen minutes after receiving a shot.
Created:
2021-02
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This photograph was taken from inside a car at the Barnum Transportation Building (3888 County Road 61, Barnum, MN 55707) where the creator was receiving her first dose of the COVID-19 vaccine. It shows a view out the windshield at lines of cars, as the creator waited until she could leave after receiving the vaccine. Her time, 3:23, is written ...
Creator:
Vavrosky, Laura
Created:
2021-03-25
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This photograph was taken from inside a car at the Barnum Transportation Building (3888 County Road 61, Barnum, MN 55707) where the creator was receiving her first dose of the COVID-19 vaccine. It shows a view out the windshield of two lines of cars driving through the building and workers in yellow vests checking people in and administering the...
Creator:
Vavrosky, Laura
Created:
2021-03-25
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This photograph shows two women wearing face masks sitting across from each other at a table, with laptops and a computer monitor between them. Description from the creator: "Kim Pittman and Rachel Flynn, UMD Librarians, meet masked in Kathryn A. Martin Library, room 260 on August 4, 2021. On August 3, 2021 the UMN system began requiring masks a...
Creator:
Jones, Kayleen
Created:
2021-08-04
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
These photographs were taken at the Duluth Curling Club on women's league night. Four of the photographs are of players on the ice at various points during a game. All players are wearing face masks. Appearing in the photos are Kristin Trelstad, Bethany Nyland, Jenna Pernu, and Mariah Davis-Vitiritto. The fifth image is of a sign at the curling ...
Creator:
Trelstad, Kristin; Trelstad, Jesse
Created:
2021-02
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Securing cyber systems is paramount, but cyber defenders lack evidence-based techniques required to make high-consequence decisions. With lack of principled and rigorous measurements and models, cyber defenders resort to heuristics and expert intuitions. Cyber experimentation is commonly used in security, and we approach this problem as a new ...
Creator:
Pinar, Ali (Sandia National Laboratories)
Created:
2021-02-19
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Damanta Basnet was born in Beldangi 2 refugee camp in Damak, Nepal. Her parents moved there after the Lhotsampas were forced to leave Bhutan in the 1990s. Damanta and her family moved to Minnesota in 2011 and overcame many obstacales while adjusting to the new culture.
Creator:
Basnet, Damanta
Contributor:
Rolland, Isabella
Created:
2021-05-22
Contributed By:
University of Minnesota, Immigration History Research Center
Daniel Castellon is a second-generation immigrant, raised in Texas by his father who is from El Salvador. He talks about his life growing up with his family in the U.S.
Creator:
Castellon, Daniel
Contributor:
Rolland, Isabella
Created:
2021-09-23
Contributed By:
University of Minnesota, Immigration History Research Center
Widespread application of modern machine learning has increased the need for robust statistical algorithms. One fundamental geometric quantity in robust statistics is known as a data depth, which generalizes the notion of quantiles and medians to multiple dimensions. This talk will discuss recent work (in collaboration with Martin Molina-Fructuo...
Creator:
Murray, Ryan (North Carolina State University)
Created:
2021-10-19
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The Data Science group at The New York Times develops and deploys machine learning solutions to newsroom and business problems. Re-framing real-world questions as machine learning tasks requires not only adapting and extending models and algorithms to new or special cases but also sufficient breadth to know the right method for the right challen...
Creator:
Wiggins, Chris (Columbia University)
Created:
2021-02-26
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Imposter Syndrome intensifies each day with growing expectations of being a data scientist. You need to have strong quantitative and technical skills (mathematics, statistics, computer science, operations research, optimization, machine learning), business knowledge and consulting skills (problem formulation and framing), relationship and commun...
Creator:
Dhamodaran, Sharath (OptumLabs)
Created:
2021-10-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
David Peal was born on the West Coast of Africa and moved to the U.S. because of a civil war in his country. He grew up in Massachusetts and then attended Gustavus Adolphus College. He reflects on his successes.
Creator:
Bradley, Andrew
Contributor:
Rolland, Isabella
Created:
2021-10-22
Contributed By:
University of Minnesota, Immigration History Research Center
Data with low-dimensional nonlinear structure are ubiquitous in engineering and scientific problems. We study a model problem with such structure—a binary classification task that uses a deep fully-connected neural network to classify data drawn from two disjoint smooth curves on the unit sphere. Aside from mild regularity conditions, we p...
Creator:
Wright, John (Columbia University)
Created:
2021-03-30
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Each of these three posters shows the same scene: a digital illustration of a small toy bird wearing a witch's cape and hat and carrying a broomstick, standing next to a lamp. The posters are labeled "11:00 AM," "5:00 PM," and "11:00 PM." The light and shadows change between the three posters, but otherwise they are identical. The creator descri...
Creator:
Nelson, Tyler
Created:
2021-09
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This photograph was taken on the first floor of the library, at the main entrance. During the COVID-19 pandemic, library patrons were directed to enter through one lane of the entrance and exit through another, to aid with physical distancing. The sticker reads: "ENTRANCE ONLY DO NOT EXIT." The sticker was originally red and gold, UMD's colors, ...
Creator:
Aue, Shana
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Consider a particular quantitative trait, and suppose we want to discover a function that maps how n participating genes (or even environmental influences) interact to express the trait. Under plausible assumptions of how they evolved, certain traits can be viewed as “smooth” functions on the n-dimensional Boolean lattice of possibl...
Creator:
Herman, Matthew (Fourier Genetics)
Created:
2021-02-12
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
These two large masks are on the wall near the theatre space at the Duluth Depot. In this photograph, they are each wearing two disposable face masks, one each over their noses and mouths. A bottle of hand sanitizer is on a pillar between the masks. This photograph was taken while a vaccination clinic was being run in the Great Hall at the Depot.
Created:
2021-02
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Elena Hernandez in Mexico in 1977. At the age of 19 she gave birth to her first daughter and travelled to the United States to live with her father using a relative's documents. Elena's story is told by her daughter and details the dangers that migrants can face when crossing the U.S.-Mexico border.
Creator:
Hernandez, Sinai
Contributor:
Rolland, Isabella
Created:
2021-04-21
Contributed By:
University of Minnesota, Immigration History Research Center
This photo was taken in the Spring of 2021 during the COVID-19 pandemic. The sign reads: "Pick Up Your UMD Face Masks Here!" During this time UMD provided two cloth face masks to all students, faculty, and staff.
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
The identification of nodes in a network that will enable the fastest spread of information is an important if not fundamental problem in network control and design. It is applicable to the optimal placement of sensors, the design of secure networks and the problem of control when network resources are limited. We consider a discrete time model...
Creator:
Hunt, Fern (National Institute of Standards and Technology)
Created:
2021-04-23
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
What is the next big thing in AI? What does one need to know and prepare for to remain relevant as the industry undergoes transformation? Why is this industry transformation a necessity? In this talk, we will discuss the strengths and weaknesses of traditional Deep Learning approaches to knowledge-centric tasks and look at a blueprint hybrid arc...
Creator:
Grinberg, Tetiana (Intel Corporation)
Created:
2021-12-10
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Signs for GrubHub, a takeout delivery service, in the hallway outside of the UMD campus coffee shop. The large colorful signs read: "ENTER HERE ONCE ORDER IS READY FOR PICKUP. GRUBHUB" and "GRUBHUB, Avoid the line! Order for pickup from on-campus restaurants with Grubhub campus dining. [QR code] Scan code with smartphone and download the app. $3...
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
When searching for signals of new astrophysical phenomena, astrophysicists have to account for several sources of non-random uncertainties which can dramatically compromise the sensitivity of the experiment under study. Among these, model uncertainty arising from background mismodeling is particularly dangerous and can easily lead to highly misl...
Creator:
Algeri, Sara (University of Minnesota, Twin Cities)
Created:
2021-09-21
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This sign was found on the exterior double door of Kirby Plaza on the University of Minnesota Duluth campus on the day UMN System President Joan Gabel announced a system-wide COVID-19 vaccine requirement for faculty, staff, and students. The sign is written with yellow marker on white paper.
Created:
2021-08
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This photo was taken in the Spring of 2021 during the COVID-19 pandemic. The sign reads: "HEALTH SCREENING CHECKLIST" and includes a list of possible symptoms of COVID-19. A student employee wearing a face mask is seated behind the plexiglass.
Created:
2021-03-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Henry Chacon Arevalo was born in Honduras in 2004. His dad moved to the U.S. when he was 2 months old and Henry was able to move there with him when he was 13.
Creator:
Chacon Arevalo, Henry Jeovany
Contributor:
Rolland, Isabella
Created:
2021-09-25
Contributed By:
University of Minnesota, Immigration History Research Center
Adrian Lowe is a white male activist, organizer, and prison abolitionist based in Philadelphia, Pennsylvania. At the time of this interview, he was a Senior Staff Attorney at the AIDS Law Project of Pennsylvania and a community organizer with Hearts on a Wire, a grassroots organization he co-founded that supports transgender incarcerated people ...
Andy Marra is a Korean-American trans woman, activist, educator, and public policy advocate based in New York City. At the time of this interview, she was the Executive Director of the Transgender Legal Defense and Education Fund (TLDEF,) an advocacy and legal services organization serving and lobbying for trans and gender nonconforming people. ...
