Multi-marginal optimal transport (MOT) is a generalization of optimal transport theory to settings with possibly more than two marginals. The computation of the solutions to MOT problems has been a longstanding challenge. In this talk, we introduce graphical optimal transport, a special class of MOT problems. We consider MOT problems from a prob...
Creator:
Chen, Yongxin (Georgia Institute of Technology)
Created:
2020-11-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Debbie Rose shares her experiences of living and working during the COVID-19 pandemic. She tells us about the news outlets she turns to for information and discusses the vast array of misinformation in the media. She tells us how her news viewing and research habits have changed over the months. Debbie explains how her health has been impacted s...
Creator:
Rose, Debbie
Contributor:
Spehar, Elizabeth
Created:
2020-11-09
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
In this talk we review some recent advances in the derivation of data-driven regularisers for inverse problems. We are in particular interested in those which are represented by a neural network and which are trained using an unsupervised, adversarial loss. The latter has links to optimal transport as the loss is derived as an approximation to t...
Creator:
Schoenlieb, Carola (University of Cambridge)
Created:
2020-11-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Now that optimal transport algorithms are reaching new levels of sophistication, we can turn our attention to developing mature applications of transport in machine learning and statistics. In this talk, I will demonstrate the breath of applications in which we can incorporate machinery from transport, as well as the computational techniques nee...
Creator:
Solomon, Justin (Massachusetts Institute of Technology)
Created:
2020-11-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This talk focus on two major effects of the quadratic Wasserstein (W2) distance as the measure of data discrepancy in computational solutions of inverse problems. First, we show, in the infinite-dimensional setup, that the W2 metric has a smoothing effect on the inversion process, making it robust against high-frequency noise in the data but lea...
Creator:
Yang, Yunan (New York University)
Created:
2020-11-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Diaz-Lopez, Alexander (Villanova University); Murillo, Anarina (Brown University); Harry, April (Rover.com); Soto, Roberto (California State University); Vega, Oscar (California State University)
Created:
2020-11-07
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Cole, Donald (University of Mississippi); Goldberg, David (Purdue University); Ulysse, Fabrice (University of Notre Dame); Vega, Oscar (California State University)
Created:
2020-11-07
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We present a novel active learning algorithm for community detection on networks. Our proposed algorithm uses a Maximal Expected Model Change (MEMC) criterion for querying network nodes label assignments. MEMC detects nodes that maximally change the community assignment likelihood model following a query. Our work is inspired by detection in the...
Creator:
Kushnir, Dan (Nokia Bell Labs)
Created:
2020-11-06
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Mean-field games (MFG) is a framework to model and analyze huge populations of interacting agents that play non-cooperative differential games with applications in crowd motion, economics, finance, etc. Additionally, the PDE that arise in MFG have a rich mathematical structure and include those that appear in optimal transportation and density f...
Creator:
Nurbekyan, Levon (University of California, Los Angeles)
Created:
2020-11-03
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In this short story by Native elder Sharon Doolittle Shuck, written in November of 2020, the narrator reflects on the anticipated difficulties of the winter ahead, the sad possibility of spending the holidays alone, and the manoomin (wild rice) harvest. She then compares modern life to the experiences of her Grandma during World War II, includin...
Creator:
Shuck, Sharon Doolittle
Created:
2020-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This collection of ten poems, each one with additional written commentary by creator Brooke Wright, address “personal experience, general observations, and inspirations” during the COVID-19 pandemic. Brooke describes the poems as "developed using a form of writing called Ethnographic Poetry." The first four poems were inspired by interviews Broo...
Creator:
Wright, Brooke
Created:
2020-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This is one of a series of six digital illustrations by the artist Moira Villiard. In this first illustration, titled “Midpandemic Spring,” Moira captures the view from her downtown Duluth studio window showing the early spring green of new grass and leaves on the trees across the wide grey street. On the window are the words, “It just ? was a… ...
Creator:
Villiard, Moira
Created:
2020-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This is one of a series of six digital illustrations by the artist Moira Villiard. This sixth illustration, titled “On The Side…,” shows a takeout box containing fried rice and a spoon next to a baggie with blue hand-sewn face masks inside, all on top of a bright red background. On one flap of the takeout box are the words, “On the side…” The fo...
Creator:
Villiard, Moira
Created:
2020-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This is one of a series of six digital illustrations by the artist Moira Villiard. This fifth illustration, titled “The Big Small World,” shows the silhouette of a human figure in a kitchen squatting down to greet two cats, one bright pink and one bright blue. In the forefront of the image is presumably the artist’s foot. On the fridge are the w...
Creator:
Villiard, Moira
Created:
2020-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This is one of a series of six digital illustrations by the artist Moira Villiard. This forth illustration, titled “The First of Many Lasts,” shows a dance floor in Minneapolis with people dancing together. The light is low and the room is filled with pinks and blues, musicians are in the forefront playing music and singing for the dancers. On t...
Creator:
Villiard, Moira
Created:
2020-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This is one of a series of six digital illustrations by the artist Moira Villiard. This second illustration, titled “Thriving, I Guess,” shows a houseplant in a white pot with vibrant green leaves in front of a yellow and ochre background. On the purple surface where the plant sits are the words, “At least somebody is thriving.” The following ar...
Creator:
Villiard, Moira
Created:
2020-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This is one of a series of six digital illustrations by the artist Moira Villiard. In this third illustration, titled “UNReliable Connections,” Moira and three of her close friends are all seen in a similar pose, with the back of one hand by their mouth as if telling a secret. The colors in the piece are both deep and bright hues. In the illustr...
Creator:
Villiard, Moira
Created:
2020-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Estimating schedule difficulty in the National Football League is tricky given the limited number of games and the number of factors that impact game outcomes, including time-varying team strengths, the home advantage, and changes in rest, travel, and time zones. From the league’s perspective, understanding each of these factors can give u...
Creator:
Bliss, Tom (National Football League)
Created:
2020-10-30
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Cathy Kiana Keiko Kapua is a Native Hawaiian māhūwahine and trans woman, community organizer, and public health advocate based on O'ahu. At the time of this interview, she was Deputy Director of the Trans Justice Funding Project, an organization that distributes grants and other funding to grassroots organizations led by and serving trans commun...
Eric Faust shares his experiences of life and running a business during the time of the COVID-19 pandemic. He talks about the early days of the pandemic and the safety protocols he implemented at his coffee roastery and coffee shop, Duluth Coffee Company. He says that soon after this he had to lay off his entire staff of thirteen people. He disc...
Creator:
Faust, Eric
Contributor:
Thomas, Blake
Created:
2020-10-28
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Mary Fox shares her experiences of living during the time of the COVID-19 pandemic. This interview was conducted six days prior to the 2020 presidential election, so she describes her early voting process and how voting was different this year from other years due to the pandemic. She talks about her preferred news outlets and her concern about ...
Creator:
Fox, Mary
Contributor:
Thomas, Blake
Created:
2020-10-28
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Robin Washington shares experiences from his life and work during the COVID-19 pandemic. He lists the news outlets he turns to for information and says that as a journalist he is well connected to colleagues and their work and explains that because of these connections, the information in his social media feed tends to be quite reliable compared...
Creator:
Washington, Robin
Contributor:
Thomas, Blake
Created:
2020-10-28
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This talk discusses multiple methods for clustering high-dimensional data, and explores the delicate balance between utilizing data density and data geometry. I will first present path-based spectral clustering, a novel approach which combines a density-based metric with graph-based clustering. This density-based path metric allows for fast algo...
Creator:
Little, Anna (The University of Utah)
Created:
2020-10-27
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Michelle McMullin and Christopher Woolery, a married couple, were interviewed together and share their experiences of living during the time of the COVID-19 pandemic. They share their recollections of first learning about the novel coronavirus and discuss why they choose particular news outlets for information. They have three young children who...
Creator:
Woolery, Christopher; McMullin, Michelle
Contributor:
O'Brien, Christopher
Created:
2020-10-25
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Tate Haglund-Pagel shares his experiences of living during the COVID-19 pandemic. As an educator who is an instructional technology integration coach, he talks briefly about his work in the school system on the day students and teachers were sent home last spring. He says working from home is a mixed blessing; there have been some additional str...
Creator:
Haglund-Pagel, Tate
Contributor:
Jacobson, Katie
Created:
2020-10-25
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Image compression, as a subset of image processing, intersects many areas of applied mathematics. In this talk, I will describe and compare the "classic" view of image compression, such as the JPEG algorithm and it's variants, against the "new kid on the block", namely compression using neural networks (NN). I will survey the relative merits of ...
Creator:
Finlay, Chris (Deep Render)
Created:
2020-10-23
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Thomas O’Rourke shares his experiences of living during the time of the COVID-19 pandemic. He talks about his weekend getaway at a cabin with his wife and friends just before the lockdown happened, describing it as a “calm before the storm.” Tom is the executive director of the Hartley Nature Center in Duluth, Minnesota, which provides many prog...
Creator:
O'Rourke, Thomas
Contributor:
Thomas, Blake
Created:
2020-10-23
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Amber Haglund-Pagel shares her experiences of life during the time of the COVID-19 pandemic. As the Safety and Training Officer for the city of Duluth, Amber recalls that very early in the pandemic Duluth secured enough personal protective equipment for the fire and police departments but she recalls just how little was known and how “unnerving”...
Creator:
Haglund-Pagel, Amber
Contributor:
Jacobson, Katie
Created:
2020-10-22
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Daniel Benoit shares his experience of living and creating during the time of the COVID-19 pandemic. He talks about the way he first heard about the novel coronavirus and details where he gets his news. He mentions that he intentionally follows a broad political spectrum of information and reads with a critical awareness of potential bias. He ex...
Creator:
Benoit, Daniel
Contributor:
Thomas, Blake
Created:
2020-10-22
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Lisa E. Johnson shares her experiences of life during the time of the COVID-19 pandemic. As a “broadcast journalist, show host, and de facto news director” at KUMD radio station on the campus of the University of Minnesota Duluth, she says she is considered an essential worker so is still employed but is now working from her home. She describes ...
Creator:
Johnson, Lisa E.
Contributor:
Thomas, Blake
Created:
2020-10-22
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Thomas Murray, or Pastor Tom, shares his experiences of life as a Lutheran pastor living on the North Shore of Lake Superior in Minnesota during the time of the COVID-19 pandemic. He is a pastor at two remote churches, one in Lutsen, Minnesota and the other in Finland, Minnesota. He talks about the changes in the lives of his parishioners, his c...
Creator:
Murray, Thomas
Contributor:
O'Brien, Christopher
Created:
2020-10-22
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Devin U. Garrett shares his experiences of life during the time of the COVID-19 pandemic. He begins by describing the evolution of his business, Lake Wood Designs, through which he builds furniture and does other woodworking projects, including many projects for restaurants and breweries. He tells us about his experience in mid-March when, on th...
Creator:
Garrett, Devin U.
Contributor:
Lundgren, Paul
Created:
2020-10-21
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Jason Wussow shares his experiences of life during the time of the COVID-19 pandemic. He recalls first hearing about the novel coronavirus in January, and says that after a series of experiences it became clear that this was going to be a problem. In mid-March he had to cancel a sold out concert and close the doors of his business, Wussow’s Conc...
Creator:
Wussow, Jason
Contributor:
Thomas, Blake
Created:
2020-10-21
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
This presentation will provide a current and in depth review of the Covid-19 pandemic. It will also provide a glimpse into the future as to how this pandemic will continue to unfold and the impact it will have worldwide. Dr. Osterholm is Regents Professor, McKnight Presidential Endowed Chair in Public Health, the director of the Center for Infe...
Creator:
Osterholm, Michael (University of Minnesota, Twin Cities)
Created:
2020-10-20
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Jonathan Otis shares his experiences of living during the time of the COVID-19 pandemic. Jon names his preferred news outlets, but says that in the past month or two he has intentionally distanced himself from the news media due to the negativity, choosing instead to listen to music albums, podcasts, or audio books, read books, or work on profes...
Creator:
Otis, Jonathan
Contributor:
Thomas, Blake
Created:
2020-10-20
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Karen Sunderman, or Karen Sunderman LaLiberte, shares her experiences living during the time of the COVID-19 pandemic. She says that her life and work were first affected by the novel coronavirus during a trip to Arizona in March. She describes her transition to working from home. As a critical consumer of news, and working in the news industry,...
Creator:
Sunderman, Karen
Contributor:
Thomas, Blake
Created:
2020-10-20
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Crystal Pelkey shares her experiences living during the time of the COVID-19 pandemic. She talks about first hearing of the novel coronavirus in February. She recalls attending a Wilco concert on the tenth of March at the Duluth Entertainment and Convention Center [DECC] and noticing that the attendance was unusually low. She tells us that by mi...
Creator:
Pelkey, Crystal
Contributor:
Jacobson, Katie
Created:
2020-10-18
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Helmi Strahl Harrington shares her experiences living during the time of the COVID-19 pandemic. She begins by briefly sharing some of her background about coming to the United States from Germany as a child, her mother’s success with playing the accordion, and how the instrument became such a large part of Helmi’s life. She discusses the various...
Creator:
Harrington, Helmi Strahl
Contributor:
Lundgren, Paul
Created:
2020-10-15
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Amber Burns shares her experiences living during the COVID-19 pandemic. As Artistic Director for the Duluth Playhouse Family Theatre, she recalls the day they had to shut down the theater due to the statewide shutdown. She tells us the theater was in the middle of a run of the play Matilda, with a performance scheduled that evening, when they ha...
Creator:
Burns, Amber
Contributor:
Jacobson, Katie
Created:
2020-10-14
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Lynn Wisneski shares her experiences living and working during the time of the COVID-19 pandemic. She begins by describing Aerostich, the internationally known Duluth based business where she has worked for thirty years, her history and role there, as well as how the business and their employees were impacted by COVID-19. She describes the signi...
Creator:
Wisneski, Lynn
Contributor:
Lundgren, Paul
Created:
2020-10-14
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
I will address some recent developments in geometric methods for optimization, statistics, and sampling. Within three specific examples, I will demonstrate how one can leverage geometric structure to achieve: 1) robust recovery results for nonconvex estimators, 2) fast statistical rates in Wasserstein barycenter estimation, and 3) efficient samp...
Creator:
Maunu, Tyler (Massachusetts Institute of Technology)
Created:
2020-10-13
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
David Pearlman shares some of the experiences he has had and his thoughts about the state of the country during this time of COVID-19. He discusses the complex reality of finding trustworthy news during this pandemic and during a presidential election year. He outlines his chosen news sources during this polarized moment in our country and expla...
Creator:
Pearlman, David
Contributor:
Moxley, Brandi
Created:
2020-10-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth
Honor Schauland shares her experiences living in Finland, Minnesota during the time of the COVID-19 pandemic. As the director of Friends of Finland, a non-profit that runs the Claire Nelson Center, Finland's community center, she talks about the many ways they have made adjustments in order to continue to serve the community. She mentions grants...
Creator:
Schauland, Honor
Contributor:
O'Brien, Christopher
Created:
2020-10-11
Contributed By:
Archives and Special Collections, Kathryn A. Martin Library, University of Minnesota Duluth