We investigate the assimilation of data that are collected while Lagrangian ocean instruments are in transit between surfacings. Effectively utilizing such data presents a challenge as the subsurface paths of these instruments are unknown. We introduce an observation operator that takes these data into account in addition to the data that are ty...
Creator:
Spiller, Elaine (Marquette University)
Created:
2013-11-20
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
PDE models of granular flows are invaluable tools for developing probabilistic hazards maps for volcanic landslides, but they are far from perfect. Epistemic uncertainty -- uncertainty due to a lack of model refinement -- arises through assumptions made in physical models, numerical approximation, and imperfect statistical models. In the context...
Creator:
Spiller, Elaine (Marquette University)
Created:
2013-12-16
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
The talk will be based on a joint work with L. Ambrosio, G. Crippa and A.Figalli. First, some new well-posedness results for continuity andtransport equations with weakly differentiable velocity fields will bediscussed. These results can be applied to the analysis of a 2 x 2 systemof conservation laws in one space dimension known as the chromato...
Creator:
Spinolo, Laura Valentina (Scuola Normale Superiore)
Created:
2009-07-25
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This file folder from the collection of papers of Daniel W. Sprague, accountant and recorder at the University of Minnesota from 1887-1918, includes the Report of the Deputy Public Examiner, F. N. Stacy, on the annual examination of the accounts of the University of Minnesota, for the fiscal year ending July 31, 1905.
Creator:
Sprague, Daniel W.
Created:
1905-07-31
Contributed By:
University of Minnesota Libraries, University Archives.
This file folder from the collection of papers of Daniel W. Sprague, accountant and recorder at the University of Minnesota from 1887-1918, includes a document detailing "A History of the University Land Grants," put together by Sprague for J.W. Olsen, Superintendent of the State of Minnesota Department of Public Instruction. The report has info...
Creator:
Sprague, Daniel W.
Created:
1908
Contributed By:
University of Minnesota Libraries, University Archives.
This file folder is from the collection of papers of Daniel W. Sprague, accountant and recorder at the University of Minnesota from 1887-1918. It includes multiple reports in considerable detail from the directors of the departments of horticulture, forestry, dairy, entomology, agriculture, animal husbandry, veterinary medicine, State Agricultur...
Creator:
Sprague, Daniel W.
Created:
1909
Contributed By:
University of Minnesota Libraries, University Archives.
This file folder from the collection of papers of Daniel W. Sprague, accountant and recorder at the University of Minnesota from 1887-1918, includes an address by Judge Gilfillan on early European and American higher education and the beginnings of the University of Minnesota.
Creator:
Sprague, Daniel W.
Created:
1905?
Contributed By:
University of Minnesota Libraries, University Archives.
This file folder from the collection of papers of Daniel W. Sprague, accountant and recorder at the University of Minnesota from 1887-1918, includes remarks by John S. Pillsbury and President Cyrus Northrop, made at the unveiling of the statue of J.S. Pillsbury on September 12, 1900.
Creator:
Sprague, Daniel W.
Created:
1900
Contributed By:
University of Minnesota Libraries, University Archives.
I will first present the k-support norm, which is the tightest convexrelaxation of sparsity combined with an ell-2 penalty. Inparticular, the k-support norm is strictly tighter then relaxingsparsity to L1 as in the elastic net, and allows us to study thelooseness of the elastic net relaxation. I will also discusstightness of convex relaxations t...
Creator:
Srebro, Nathan (Nati) (Technion-Israel Institute of Technology)
Created:
2015-02-25
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
I will discuss deep connections between Statistical Learning, OnlineLearning and Optimization. I will show that there is a tightcorrespondence between the sample size required for learning and thenumber of local oracle accesses required for optimization, and thesame measures of 'complexity' (e.g. the fat-shattering dimension orRademacher complex...
Creator:
Srebro, Nathan (Nati) (Toyota Technological Institute at Chicago)
Created:
2012-03-29
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We consider a switch with uniform traffic operating under the MaxWeight scheduling algorithm. This traffic pattern is interesting to study in the heavy-traffic regime since the queue lengths exhibit a multi-dimensional state-space collapse. We use a Lyapunov-type drift technique to characterize the heavy-traffic behavior of the expectation of th...
Creator:
Srikant, Rayadurgam (University of Illinois at Urbana-Champaign)
Created:
2015-06-26
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
Files in large storage systems are either replicated or coded at multiple servers to protect against server failures. Load balancing can be used to exploit this redundancy in storage to reduce mean file-access delay. It is easy to show that at light loads (i.e., when the rate of file access requests is small), coding leads to smaller mean file-a...
Creator:
Srikant, Rayadurgam (University of Illinois at Urbana-Champaign)
Created:
2015-10-22
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This story is about a bust of Lenin, passed on to the narrator by his grandmother, Janaki. She and her husband were doctors and communists in India and influenced the narrator as he grew up. Today, the bust has political and nostalgic significance for the narrator.
Creator:
Sriram, Shyam
Created:
2018-10-06
Contributed By:
University of Minnesota, Immigration History Research Center
Our previous work developed techniques for computing geodesics onshape spaces of planar closed curves, first with and later withoutrestrictions to arc-length parameterizations. Using tangentprincipal component analysis (TPCA), we have imposed probabilitymodels on these spaces and have used them in Bayesian shapeestimation and classification of o...
Creator:
Srivastava, Anuj (Florida State University)
Created:
2006-04-04
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
We propose the notion of cluster superalgebras which is a supersymmetric version of the classical cluster algebras introduced by Fomin and Zelevinsky. We show that the symplectic-orthogonal superalgebras SpO(21) and SpO(22) admit cluster superalgebra structures and as a consequence of this, we also deduce that the supercommutative superalgebra g...
Creator:
Srivastava, Ashish Kumar (Saint Louis University)
Created:
2017-08-21
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
This presentation focuses on the structure and energetics of line defects in 2D materials and their impact on microstructures. We employ several approaches in which local bonding information is determined using first principles methods, continuum methods are employed to describing in-plane strain and bending, and microstructures are described wi...
Creator:
Srolovitz, David J (University of Pennsylvania)
Created:
2017-05-17
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.
In the first part of these lectures I will present certain, by now classic, results on local and global well-posedness for the NLS via Strichartz estimates.In the second part I will show how one can use randomization of the initial data to prove well-posedness almost surely even when the problem lack enough regularity for a more deterministic ap...
Creator:
Staffilani, Gigliola (Massachusetts Institute of Technology)
Created:
2015-05-28
Contributed By:
University of Minnesota, Institute for Mathematics and its Applications.