This talk presents two parts of results related to tensor computations. The first part is on a new matricization approach, resulting in lower and upper approximations for the CP-rank. In this part, theoretical properties of the new ranks (to be called the M-ranks) will be discussed, with applications to solve the low CP-rank tensor completion pr...
Creator:
Zhang, Shuzhong (University of Minnesota, Twin Cities)
Created:
2016-01-28
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Deep generative networks have achieved great success in high dimensional density approximation, especially for approximating the distributions of natural images and languages. In this talk, we propose to leverage their approximation capability to approximate posterior distributions in Bayesian Inverse Problems (BIPs). To train deep generative ne...
Creator:
Zhang, Pengchuan (Microsoft Research)
Created:
2018-10-22
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
A dynamic treatment regime is a sequence of decision rules, each corresponding to a decision point, that determine that next treatment based on each individual’s own available characteristics and treatment history up to that point. We show that identifying the optimal dynamic treatment regime can be recast as a sequential optimization problem ...
Creator:
Zhang, Min (University of Michigan)
Created:
2018-11-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Conformational searching is a core task in inverse molecularkinematics. Algorithmic improvements affecting either the speed orquality of conformational searching will have a profound impact onapplications including ligand-receptor docking, ab initio predictionof protein structure, and protein folding. In this talk, we focus on aspecific geometry...
Creator:
Zhang, Ming (University of Texas)
Created:
2007-06-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Divergence functions, as a proximity measure on a smooth manifold and often surrogate to the (symmetric) metric function, play an important role in machine learning, statistical inference, optimization, etc. This talk will review the various geometric structures induced from a divergence function defined on a manifold. Most importantly, a Rieman...
Creator:
Zhang, Jun (University of Michigan)
Created:
2013-10-28
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The locomotion of most fish and birds is realized by flapping wings or fins transverse to the direction of travel. Here, we study experimentally the dynamics of a wing that is flapped up and down but is free to move in the horizontal direction. In this table-top prototype experiment, we show that flapping flight occurs abruptly at a critical fla...
Creator:
Zhang, Jun (New York University)
Created:
2006-06-28
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In recent years Peng prososed a new notion called G-expectation, a type of nonlinear expectation motivated from dynamic risk measures with volatility uncertainty. On the other hand, a martingale under the G-expectation can be viewed as the solution to a 'linear' Second Order Backward SDEs, the main subject of the short course which will be given...
Creator:
Zhang, Jianfeng (University of Southern California)
Created:
2010-06-14
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Master equation is a powerful tool for studying McKean-Vlasov dynamics where the distribution of the state process enters the coefficients directly, with particular applications including mean field games and stochastic control problems with partial information. In this talk we propose an intrinsic notion of viscosity solution for parabolic mast...
Creator:
Zhang, Jianfeng (University of Southern California)
Created:
2018-06-13
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In this talk, we will discuss extending the optimal gradient methods for solving convex optimization to deal with more general nonlinear, possibly nonconvex and nonsmooth, optimization problems. These algorithms will treat the nonconvex and convex optimization problems in a unified way so that they will achieve the best known complexity for solv...
Creator:
Zhang, Hongchao (Louisiana State University)
Created:
2016-01-26
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We study deterministic fluid approximation models of parallel service systems, operating under first come first served policy (FCFS), when the service time distributions may depend on both the server and the customer type. We explore the relations between fluid models and the properties of stability, resource pooling, and matching rates. We find...
Creator:
Zhang, Hanqin (National University of Singapore)
Created:
2018-05-18
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We develop a mathematical theory to explain the mechanism of super-resolution in resonant media which consists of sub-wavelength resonators. Examples includes: Helmholtz resonators, plasmonic particles, and bubbles. For the media consists of small finite number of resonators, we show that super-resolution is due to sub-wavelength propagating mod...
Creator:
Zhang, Hai (Hong Kong University of Science and Technology)
Created:
2017-02-17
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Edward tells the story of his parents immigrating to the U.S. on student visas. Although they didn't initially plan to stay permanently, they built a life in the U.S. after completing university.
Creator:
Zhang, Edward
Contributor:
Horner, Kimberly
Created:
2024-05-09
Contributed By:
University of Minnesota, Immigration History Research Center
This talk presents a Maple/Matlab toolbox for basic polynomial computations with exact or approximate data. The toolbox includes software for computing the approximate GCD, approximate factorization, dual basis and multiplicity identification, as well as numerical elimination in solving polynomial systems. We shall present the underlying theory ...
To achieve personalized medicine, an individualized treatment strategy assigning treatment based on an individual's characteristics that leads to the largest benefit can be considered. Recently, a machine learning approach, O-learning, has been proposed to estimate an optimal individualized treatment rule (ITR), but it is developed to make binar...
Creator:
Zeng, Donglin (University of North Carolina, Chapel Hill)
Created:
2018-11-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Invariant manifolds and foliations have become very useful tools in dynamical systems. For infinite dimensional systems generated by evolutionary PDEs, the mere existence of these structures is non-trivial compared to those of ODEs due to issues such as the non-existence of backward (in time) solutions of some PDEs or nonlinear terms causing der...
Creator:
Zeng, Chongchun (Georgia Institute of Technology)
Created:
2012-09-19
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We will discuss classical and new results on the existence or non-existence of inertial manifolds (IMs) for semilinear parabolic equation. In particular, we report on the existence of IMs for the 1D reaction-diffusion-advection systems with Dirichlet or Neumann boundary conditions and give the counterexamples for the case of periodic boundary co...
Creator:
Zelik, Sergey (University of Surrey)
Created:
2016-06-23
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I will describe recent results (obtained jointly with A. Guionnet P. Wood) concerning perturbations of non-normal random matrices and their stabilization by additive noise. This builds on techniques introduced earlier inthe context of the 'single ring theorem', by Guionnet, Krishnapur, and the speaker.
Creator:
Zeitouni, Ofer (University of Minnesota, Twin Cities)
Created:
2011-09-27
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This series will highlight the main steps in the approach to universality based on dynamics and comparisons of Green functions. The emphasis will be on the basic steps, not on sharpest results.
Creator:
Zeitouni, Ofer (University of Minnesota, Twin Cities)
Created:
2012-06-25
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The long, rich history of topology in mathematics has provenextremely useful for the study of DNA. DNA, the geneticblueprint for life, undergoes tremendous flux as it ispackaged, replicated, segregated, transcribed, recombined andrepaired. Extremely long and skinny, DNA is prone toentanglement. Every time it is copied, the two resulting'daughter...
Creator:
Zechiedrich, Lynn (Baylor College of Medicine)
Created:
2010-04-09
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This talk will be about the non-backtracking matrix of a graph. I will review recent works on its spectral properties for random graphs and concentrate on its algorithmic applications. Notably I will talk about optimality of the corresponding spectral algorithm for clustering of sparse networks and for analysis of percolation on sparse networks....
Creator:
Zdeborova, Lenka (Centre National de la Recherche Scientifique (CNRS))
Created:
2015-05-19
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Energy networks are becoming increasingly decentralized and exhibit new forms of coupling. For instance, during the polar vortex of 2014, sustained low temperatures in the Midwest region of the U.S. resulted in unusually high gas demands from buildings in urban areas. This led to shortages of natural gas that propagated to California, Massachuse...
Creator:
Zavala, Victor M. (University of Wisconsin, Madison)
Created:
2016-05-11
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We review applications and algorithmic challenges of Gaussian Process (GP) modeling. GP is a powerful and flexible uncertainty quantification and data analysis technique that enables the construction of complex models without the need to specify algebraic relationships between variables. This is done by working directly in the space of the kerne...
Creator:
Zavala, Victor M. (Argonne National Laboratory)
Created:
2013-06-12
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Cartographic Details: Scale not given (E 25°--W 165°/N 78°--S 10°). Relief shown pictorially."Questa carta eá un poá differente dalle precedenti per l'ultime scoperte al N.E. dell' Asia e nell' Oceano Pacifico. Essendo il Mar Caspio descritto con molto divario nell' altre carte; per istabilirne l'esata posizione ci siamo serviti del Passaggio ...
Creator:
Zatta, Antonio, active 1757-1797
Created:
1777
Contributed By:
University of Minnesota Libraries, John R. Borchert Map Library.
Most supervised machine learning algorithms assume that each training data point is paired with an accurate training label (for classification) or value (for regression). However, obtaining accurate training label information is often time consuming and expensive, making it infeasible for large data sets, or may simply be impossible to provide g...
Creator:
Zare, Alina (University of Florida)
Created:
2018-10-26
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The first generation of theories and computer simulations of liquid crystals have made drastic and often contrasting assumptions on the model representation of constituent mesogens and on the type of intermolecular interactions (e.g purely attractive in Maier-Saupe type and purely hard repulsions in Onsager models). Computer simulations of liqui...
Creator:
Zannoni, Claudio (Universita Di Bologna)
Created:
2018-01-17
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Predicting realistic morphologies and molecular organizations from chemical structure is far from easy and indeed has only recently proved doable by atomistic molecular dynamics. The issue is further complicated in thin films, where the material is strongly affected by surface interactions, even if obtaining information on alignment and anchorin...
Creator:
Zannoni, Claudio (Universita Di Bologna)
Created:
2018-03-01
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The ocean contains a vigorous mesoscale eddy field with spatial scales of approximately 10 to 100km, evolving over time scales from weeks to months. These eddies are important in establishing the ocean's circulation and tracer properties. Grid spacing of roughly 10 km and smaller are necessary to properly simulate the eddy field, therefore ocean...
Creator:
Zanna, Laure (University of Oxford)
Created:
2013-03-15
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Branwen Zakariasen is a white trans woman originally from Texas who later spent time in Minneapolis and Portland. At the time of this interview, she was working as a customer support specialist. In this oral history Zakariasen discusses naming, healing from trauma and abuse, taking up labels, family relationships, sexism, and the video game indu...
Creator:
Zakariasen, Brawen
Contributor:
Jenkins, Andrea (Interviewer)
Created:
2017-03-21
Contributed By:
University of Minnesota Libraries, Jean-Nickolaus Tretter Collection in Gay, Lesbian, Bisexual and Transgender Studies.
Consider the system of annihilating Brownian motions (ABM's) on the real lineunder the maximal entrance law. It turns out that the law of particles' positions at a given time is a Pfaffian point process equivalent to the law of real eigenvalues for the real Ginibre ensemble. Moreover, multi-time intensities for the system of ABM's are an extende...
Creator:
Zaboronski, Oleg V (University of Warwick)
Created:
2013-01-17
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Predictive modeling of physical processes in heterogeneous media requires innovations in mathematical and computational thinking. While multiscale approaches have been successful in modeling the effects of fine scales to macroscopic response, a significant grant challenge remains in understanding the effects of topological uncertainties in chara...
Creator:
Zabaras, Nicholas J. (Cornell University)
Created:
2013-12-16
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This folder contains materials created/collected by the Minneapolis Young Women's Christian Association. The Minneapolis YWCA was established in June, 1891, by a group of young women representing various Christian church organizations, and for the next forty years worked to provide services to young Christian women. Beginning in the 1930s, the Y...
Creator:
YWCA of Minneapolis
Created:
1940 - 1949
Contributed By:
University of Minnesota Libraries, Social Welfare History Archives.
This folder contains materials created/collected by the Minneapolis Young Women's Christian Association. The Minneapolis YWCA was established in June, 1891, by a group of young women representing various Christian church organizations, and for the next forty years worked to provide services to young Christian women. Beginning in the 1930s, the Y...
Creator:
YWCA of Minneapolis
Created:
1943 - 1966
Contributed By:
University of Minnesota Libraries, Social Welfare History Archives.
This folder contains materials created/collected by the Minneapolis Young Women's Christian Association. The Minneapolis YWCA was established in June, 1891, by a group of young women representing various Christian church organizations, and for the next forty years worked to provide services to young Christian women. Beginning in the 1930s, the Y...
Creator:
YWCA of Minneapolis
Created:
1964 - 1965
Contributed By:
University of Minnesota Libraries, Social Welfare History Archives.
This folder contains materials created/collected by the Minneapolis Young Women's Christian Association. The Minneapolis YWCA was established in June, 1891, by a group of young women representing various Christian church organizations, and for the next forty years worked to provide services to young Christian women. Beginning in the 1930s, the Y...
Creator:
YWCA of Minneapolis
Created:
1949 - 1958
Contributed By:
University of Minnesota Libraries, Social Welfare History Archives.
Roda Yussuf was born in Somalia in 1988 and lived there until 1997. She lived in Ethiopia from 1997-2011. In 2009, she was authorized for resettlement to the United States and she flew to the U.S. on December 7, 2011 with her daughter Muna and her sister Rahma. She lived in Cactus, TX, where she worked in a meat plant. She moved to Minneapol...
Creator:
Yussuf, Roda
Created:
2014-11
Contributed By:
University of Minnesota, Immigration History Research Center
Ty Yule is a white trans man. In life, Yule has spent time in the Midwest (in Iowa and Minnesota) and in California (in Apple Valley and San Francisco). In this interview, Yule touches upon topics such as passing and adversity, coalition building, gay marriage, and assimilation. He also shares his experiences with queer organizing and activism i...
Creator:
Yule, Ty
Contributor:
Jenkins, Andrea (Interviewer)
Created:
2015-08-20
Contributed By:
University of Minnesota Libraries, Jean-Nickolaus Tretter Collection in Gay, Lesbian, Bisexual and Transgender Studies.
Leah Herder was born in Changde, China in 1996. In 1997, she was adopted by an American couple. She grew up in Ohio and Wisconsin and studied at the University of Minnesota.
Creator:
Yukioka, Haruka
Created:
2016-12-01
Contributed By:
University of Minnesota, Immigration History Research Center
Tropical geometry is the geometry over the tropical semiring, which is the set of real numbers where the tropical addition is taking the minimum, and the tropical multiplication is the ordinary addition. As the ordinary linear and polynomial algebra give rise to convex geometry and algebraic geometry, tropical linear and polynomial algebra give ...
Creator:
Yu, Josephine (Massachusetts Institute of Technology)
Created:
2009-04-04
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
At the time of this interview, Dr. Monica Yugu was a case manager and HIV counselor in the Infectious Diseases department at Minnesota Children's Hospital. Prior to her work at Children's, Dr. Yugu was employed with the Hennepin County Medical Center's Positive Care Center. She was previously was involved in HIV/AIDS community health work within...
Creator:
Yugu, Monica
Contributor:
Angelica, Emil (interviewer); Carr, Peter (interviewer); Sommer, Barbara W. (interviewer); Billund-Phibbs, Myra (archival processing)
Created:
2016-04-19
Contributed By:
University of Minnesota Libraries, Jean-Nickolaus Tretter Collection in Gay, Lesbian, Bisexual and Transgender Studies.
Boosting is one of the two most successful machine learning methodswith SVM. It uses gradient descent to an empirical loss function.When the step sizes are small, it is computationally efficient wayto approximate Lasso. When a nuclear norm penalization is applied to L2 loss,we have the low-rank regularization arising from the Netflix competition...
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2013-06-24
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In this lecture, we will discuss basic experimental design principles in data collection and issues regarding data quality. Specific data examples such as the entron data set will be used.
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2013-06-17
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This lecture will cover data summarization and visualization tools such as kernel estimation, loess, scatterplot and dimension reduction via principal component analysis (PCA). Specific data examples will be used.
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2013-06-17
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This lecture will generalize LS to weighted LS (WLS) and use WLS to connect with generalized linear models including logistic regression. Remote sensing data for cloud detection will be used.
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2013-06-18
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This lecture reviews least squares (LS) method for linear fitting and its statistical properites under various linear regression model assumptions. Methods will be illustrated with real data examples from instructor's research projects.
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2013-06-18
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
LS and Maximum Likelihood estimation (MLE) overfit when the dimension of the model is not small relative to the sample size. This happens almost always in high-dimensions. Regularziation often works by adding a penalty to the fitting criterion as in classical model selection methods such as AIC or BIC and L1-penalized LS called Lasso. We will al...
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2013-06-19
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This lectures will cover two related L2-penalized regularization methods: Ridge Regression and SVM, one from the 40's and one from the 90's. And SVM is one of the two most successful machine learning methods together with Boosting.
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2013-06-24
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In this talk, I'd like to discuss the intertwining importance and connections of three principles of data science in the title in data-driven decisions. The ultimate importance of prediction lies in the fact that future holds the unique and possibly the only purpose of all human activities, in business, education, research, and government alike....
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2016-09-14
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In recent years network analysis have become the focus of muchresearch in many fields including biology, communication studies, economics, information science, organizational studies, and social psychology. Communities or clusters of highly connected actors form an essential feature in the structure of several empirical networks. Spectral cluste...
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2011-09-26
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This lecture will illustrate the power of the sparse coding principle and low-rank regularization in modeling neuron responses to natural images in the very challenging visual cortex area V4.
Creator:
Yu, Bin (University of California, Berkeley)
Created:
2013-06-25
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
JD.com sets the standard for online shopping through its commitment to quality, authenticity, and its high standard delivery services. JD's nationwide fulfillment network provides standard same- and next-day delivery covering a population of more than 1 billion. This talk will discuss the latest development of the the key methodologies and algor...
Creator:
Yuan, Rong (JD.COM)
Created:
2018-12-04
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Stochastic viral dynamics modeled by stochastic differential equations with Beddington-DeAngelis functional response and rates driven by white noise will be presented. The stochastic positive invariance and the existence of stationary distribution are proved. Through estimation of the pathwise and asymptotic moment upper bounds, the moment Lyapu...
Creator:
You, Yuncheng (University of South Florida)
Created:
2016-06-22
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Membrane fluctuation and dynamics under an electric field is investigated, and results show that the membrane instability and dynamics depend not only on the mismatch in conductivity and permittivity between the bulk fluids, but also on the membrane charging time. In addition, the (entropic) membrane tension is found to depend on the electric fi...
Creator:
Young, Yuan-Nan (New Jersey Institute of Technology)
Created:
2015-07-24
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
(1) interaction of molecular diffusion with simpleunidirectional shear flows (bounded and unbounded domains).(2) Limitation of the effective diffusion approximation tolong times and small domains, and low moments of the tracerdistribution.(3) Perhaps a geophysical example: shear diffusion in theinternal gravity wave field. The vertical tracer ca...
Creator:
Young, William Roy (Scripps Research Institute)
Created:
2010-04-11
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
A $k$-term arithmetic progression is a sequence of the form $a, a+d, a+2d, ... , a+(k-1)d$, where $a$ and $d$ are nonegative integers. Van der Waerden's Theorem states that given a set of colors there exists an interval $[1,n]$ such that any coloring of the integers, using all the colors, will contain a $k$-term arithmetic progression with each ...
Creator:
Young, Michael (Iowa State University)
Created:
2015-03-27
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
![[Map of timber land in Western Canada] : to accompany paper on the timber belt of northern Alberta and Saskatchewan and the Northwest Territories west of Hudson Bay](https://dkp5i0hinw9br.cloudfront.net/407a7689b4948662dcb7217004161efcb04c3893.png "[Map of timber land in Western Canada] : to accompany paper on the timber belt of northern Alberta and Saskatchewan and the Northwest Territories west of Hudson Bay")
