Výsledky vyhledávání - "Jung, Woosuk"

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On the local and global minimizers of the smooth stress function in Euclidean Distance Matrix problems

Autor: Song, Mengmeng, Goncalves, Douglas, Jung, Woosuk L., Lavor, Carlile, Mucherino, Antonio, Wolkowicz, Henry

We consider the nonconvex minimization problem, with quartic objective function, that arises in the exact recovery of a configuration matrix $P\in \Rnd$ of $n$ points when a Euclidean distance matrix, \EDMp, is given with embedding dimension $d$. It

Externí odkaz: http://arxiv.org/abs/2408.07256

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Projection, Degeneracy, and Singularity Degree for Spectrahedra

Autor: Im, Haesol, Jung, Woosuk L., Moursi, Walaa M., Torregrosa-Belin, David, Wolkowicz, Henry

Facial reduction, FR, is a regularization technique for convex programs where the strict feasibility constraint qualification, CQ, fails. Though this CQ holds generically, failure is pervasive in applications such as semidefinite relaxations of hard

Externí odkaz: http://arxiv.org/abs/2407.06408

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Single Element Error Correction/ in a Euclidean Distance Matrix

Autor: Alfakih, Abdo, Jung, Woosuk L., Wolkowicz, Henry, Xu, Tina

We consider the \emph{exact} error correction of a noisy Euclidean distance matrix, EDM, where the elements are the squared distances between $n$ points in $R^d$. For our problem we are given two facts: (i) the embedding dimension, $d$, (ii) \emph{ex

Externí odkaz: http://arxiv.org/abs/2406.15969

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Exact Solutions for the NP-hard Wasserstein Barycenter Problem using a Doubly Nonnegative Relaxation and a Splitting Method

Autor: Alfakih, Abdo, Jung, Woosuk L., Moursi, Walaa M., Wolkowicz, Henry

The \emph{simplified} Wasserstein barycenter problem, also known as the cheapest hub problem, consists in selecting one point from each of $k$ given sets, each set consisting of $n$ points, with the aim of minimizing the sum of distances to the baryc

Externí odkaz: http://arxiv.org/abs/2311.05045

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The $\omega$-Condition Number for Optimal Preconditioning and Low Rank Generalized Jacobian Updating

Autor: Jung, Woosuk L., Torregrosa-Belén, David, Wolkowicz, Henry

Preconditioning is essential in iterative methods for solving linear systems. It is also the implicit objective in updating approximations of Jacobians in optimization methods, e.g., in quasi-Newton methods. Motivated by the latter, we study a noncla

Externí odkaz: http://arxiv.org/abs/2308.13195

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Akademický článek

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Analysis of two early embryogenesis related genes from barley (Hordeum vulgare L.)

Autor: Jung, Woosuk.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1998.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 147-161).

Externí odkaz: http://catalog.hathitrust.org/api/volumes/oclc/41082757.html

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