Search Results

Faculty Research and Open Access

Description: Poster introducing the faculty lecture series UNT Speaks Out as part of International Open Access Week at the University of North Texas (UNT).
Date: October 22, 2012
Creator: Lawrence, Samantha
Item Type: Poster
Partner: UNT Libraries

Robocamp: Encouraging Young Women to Embrace STEM

Description: This paper describes the efforts and results of a plan for actively recruiting students to undergraduate computer science and engineering programs at the University of North Texas (UNT). Such recruitment of students is critical to the country's efforts to increase the number of engineering professionals, and is a priority for the Computer Science and Engineering (CSE) Department at UNT.
Date: February 2009
Creator: Akl, Robert G. & Keathly, David
Item Type: Paper
Partner: UNT College of Engineering

Retention and Recruitment of Women in Computer Engineering

Description: This paper describes the efforts and results of a plan for actively recruiting women students to undergraduate computer engineering programs at the University of North Texas (UNT). It also describes a series of activities aimed at improving retention rates of women students already in our programs. Such recruitment and retention of women is critical to the country's efforts to increase the number of engineering professionals, and is a priority for the Computer Science and Engineering (CSE) Department at UNT.
Date: July 2006
Creator: Akl, Robert G. & Garlick, Ryan
Item Type: Paper
Partner: UNT College of Engineering

Robocamp: Encouraging Young Women to Embrace STEM

Description: This presentation discusses Robocamp, a special summer camp that was created by the University of North Texas (UNT) Computer Science and Engineering department. Robocamp successfully promotes engineering among high school women.
Date: February 2009
Creator: Akl, Robert G.; Keathly, David & Garlick, Ryan
Item Type: Presentation
Partner: UNT College of Engineering

Draft Genome Sequence of Cupriavidus sp. Strain SK-4, a di-ortho-Substituted Biphenyl-Utilizing Bacterium Isolated from Polychlorinated Biphenyl-Contaminated Sludge

Description: Article on the draft genome sequence of Cupriavidus sp. strain SK-4, a di-ortho-substituted biphenyl-utilizing bacterium isolated from polychlorinated biphenyl-contaminated sludge.
Date: May 1, 2014
Creator: Vilo, Claudia A.; Benedik, Michael J.; Ilori, Matthew Olusoji & Dong, Qunfeng
Item Type: Article
Partner: UNT College of Arts and Sciences

Scalable Dynamic Mesh Algorithms and Software. Final Report

Description: This report details results from work conducted under the grant entitled ''Scalable Dynamic Mesh Algorithms and Software'' for the period September 1, 1998 to November 30, 2001.
Date: March 15, 2002
Creator: Jones, Mark T. & Plassmann, Paul E.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Multiple Input Feature Sets from Real-Time Color and Range Data for Reliable Tracking

Description: This paper describes a work in progress on using multiple sets of input features for robust real-time object tracking in image sequences. Traditional approaches to tracking relied mostly on segmentation of the intensity data using motion or appearance data. Recent availability of real-time range data allows us to use it as an additional unrivaled source of information. We propose a combination of intensity- and range-based input features. Range data enables localized search for' specific features which improves tracking reliability and speed. Proposed approach was successfully tested for the face and gesture tracking application.
Date: October 19, 1999
Creator: Tsap, L.V. & Goldgof, D.B.
Item Type: Article
Partner: UNT Libraries Government Documents Department

Amesos 1.0 reference guide.

Description: This document describes the main functionalities of the Amesos package, version 1.0. Amesos, available as part of Trilinos 4.0, provides an object-oriented interface to several serial and parallel sparse direct solvers libraries, for the solution of the linear systems of equations A X = B where A is a real sparse, distributed matrix, defined as an EpetraRowMatrix object, and X and B are defined as EpetraMultiVector objects. Amesos provides a common look-and-feel to several direct solvers, insulating the user from each package's details, such as matrix and vector formats, and data distribution.
Date: May 1, 2004
Creator: Sala, Marzio & Stanley, Ken D. (Oberlin, OH)
Item Type: Report
Partner: UNT Libraries Government Documents Department

Coefficient adaptive triangulation for strongly anisotropic problems

Description: Second order elliptic partial differential equations arise in many important applications, including flow through porous media, heat conduction, the distribution of electrical or magnetic potential. The prototype is the Laplace problem, which in discrete form produces a coefficient matrix that is relatively easy to solve in a regular domain. However, the presence of anisotropy produces a matrix whose condition number is increased, making the resulting linear system more difficult to solve. In this work, we take the anisotropy into account in the discretization by mapping each anisotropic region into a ``stretched`` coordinate space in which the anisotropy is removed. The region is then uniformly triangulated, and the resulting triangulation mapped back to the original space. The effect is to generate long slender triangles that are oriented in the direction of ``preferred flow.`` Slender triangles are generally regarded as numerically undesirable since they tend to cause poor conditioning; however, our triangulation has the effect of producing effective isotropy, thus improving the condition number of the resulting coefficient matrix.
Date: January 1, 1996
Creator: D`Azevedo, E.F.; Romine, C.H. & Donato, J.M.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Computing connection coefficients of compactly supported wavelets on bounded intervals

Description: Daubechies wavelet basis functions have many properties that make them desirable as a basis for a Galerkin approach to solving PDEs: they are orthogonal, with compact support, and their connection coefficients can be computed. The method developed by Latto et al. to compute connection coefficients does not provide the correct inner product near the endpoints of a bounded interval, making the implementation of boundary conditions problematic. Moreover, the highly oscillatory nature of the wavelet basis functions makes standard numerical quadrature of integrals near the boundary impractical. The authors extend the method of Latto et al. to construct and solve a linear system of equations whose solution provides the exact computation of the integrals at the boundaries. As a consequence, they provide the correct inner product for wavelet basis functions on a bounded interval.
Date: April 1, 1997
Creator: Romine, C. H. & Peyton, B. W.
Item Type: Report
Partner: UNT Libraries Government Documents Department

Simulation of Throughput in UMTS Networks with Different Spreading Factors

Description: In this paper, the authors design and implement a local session admission control (SAC) algorithm for third-generation wireless networks which allows for the simulation of network throughput for different spreading factors and various mobility scenarios.
Date: September 2006
Creator: Akl, Robert G. & Arepally, Anurag
Item Type: Paper
Partner: UNT College of Engineering

Final Report for Project DE-FC02-06ER25755 [Pmodels2]

Description: In this report, we describe the research accomplished by the OSU team under the Pmodels2 project. The team has worked on various angles: designing high performance MPI implementations on modern networking technologies (Mellanox InfiniBand (including the new ConnectX2 architecture and Quad Data Rate), QLogic InfiniPath, the emerging 10GigE/iWARP and RDMA over Converged Enhanced Ethernet (RoCE) and Obsidian IB-WAN), studying MPI scalability issues for multi-thousand node clusters using XRC transport, scalable job start-up, dynamic process management support, efficient one-sided communication, protocol offloading and designing scalable collective communication libraries for emerging multi-core architectures. New designs conforming to the Argonne’s Nemesis interface have also been carried out. All of these above solutions have been integrated into the open-source MVAPICH/MVAPICH2 software. This software is currently being used by more than 2,100 organizations worldwide (in 71 countries). As of January ’14, more than 200,000 downloads have taken place from the OSU Web site. In addition, many InfiniBand vendors, server vendors, system integrators and Linux distributors have been incorporating MVAPICH/MVAPICH2 into their software stacks and distributing it. Several InfiniBand systems using MVAPICH/MVAPICH2 have obtained positions in the TOP500 ranking of supercomputers in the world. The latest November ’13 ranking include the following systems: 7th ranked Stampede system at TACC with 462,462 cores; 11th ranked Tsubame 2.5 system at Tokyo Institute of Technology with 74,358 cores; 16th ranked Pleiades system at NASA with 81,920 cores; Work on PGAS models has proceeded on multiple directions. The Scioto framework, which supports taskparallelism in one-sided and global-view parallel programming, has been extended to allow multi-processor tasks that are executed by processor groups. A quantum Monte Carlo application is being ported onto the extended Scioto framework. A public release of Global Trees (GT) has been made, along with the Global Chunks (GC) framework on which GT is built. The Global Chunks ...
Date: March 12, 2014
Creator: Panda, Dhabaleswar & Sadayappan, P
Item Type: Report
Partner: UNT Libraries Government Documents Department

An implicitly restarted bidiagonal Lanczos Method forLarge-scale singular value problems

Description: Low rank approximation of large and/or sparse rectangular matrices is a very import ant topic in many application problems and is closely related to the sin- gular value decomposition of the matrices. In this paper, we propose an implicit restart scheme for the bidiagonal Lanczos algorithm to compute a subset of the dominating singular triplets. We also illustrate the connection of the method with inverse eigenvalue problems. In the Lanczos process, we use the so-called one-sided reorthogonalization strategy to maintain the orthogonality level of the Lanczos vec- tors. The efficiency and the applicability of our algorithm are illustrated by some numerical examples from information retrieval applications.
Date: August 1, 1998
Creator: Wang, Xiaohui & Zha, Hongyuan
Item Type: Report
Partner: UNT Libraries Government Documents Department