Computer Networks Virtualization with GNS3: Evaluating a solution to optimize resources and achieve a distance learning

Designing educational resources allow students to modify their learning process. In particular, on-line and downloadable educational resources have been successfully used in engineering education the last years [1]. Usually, these resources are free and accessible from web. In addition, they are designed and developed by lecturers and used by their students. But, they are rarely developed by students in order to be used by other students. In this work-in-progress, lecturers and students are working together to implement educational resources, which can be used by students to improve the learning process of computer networks subject in engineering studies. In particular, network topologies to model LAN (Local Area Network) and MAN (Metropolitan Area Network) are virtualized in order to simulate the behavior of the links and nodes when they are interconnected with different physical and logical design.

Experiences Using an Open Source Sofware Library to Teach Computer Vision Subjects

Machine vision is an important subject in computer science and engineering degrees. For laboratory experimentation, it is desirable to have a complete and easy-to-use tool. In this work we present a Java library, oriented to teaching computer vision. We have designed and built the library from the scratch with enfasis on readability and understanding rather than on efficiency. However, the library can also be used for research purposes. JavaVis is an open source Java library, oriented to the teaching of Computer Vision. It consists of a framework with several features that meet its demands. It has been designed to be easy to use: the user does not have to deal with internal structures or graphical interface, and should the student need to add a new algorithm it can be done simply enough. Once we sketch the library, we focus on the experience the student gets using this library in several computer vision courses. Our main goal is to find out whether the students understand what they are doing, that is, find out how much the library helps the student in grasping the basic concepts of computer vision. In the last four years we have conducted surveys to assess how much the students have improved their skills by using this library.

Bifurcation Analysis of Reaction Diffusion Systems on Arbitrary Surfaces

In this article we present a computational framework for isolating spatial patterns arising in the steady states of reaction-diffusion systems. Such systems have been used to model many different phenomena in areas such as developmental and cancer biology, cell motility and material science. Often one is interested in identifying parameters which will lead to a particular pattern. To attempt to answer this, we compute eigenpairs of the Laplacian on a variety of domains and use linear stability analysis to determine parameter values for the system that will lead to spatially inhomogeneous steady states whose patterns correspond to particular eigenfunctions. This method has previously been used on domains and surfaces where the eigenvalues and eigenfunctions are found analytically in closed form. Our contribution to this methodology is that we numerically compute eigenpairs on arbitrary domains and surfaces. Here we present various examples and demonstrate that mode isolation is straightforward especially for low eigenvalues. Additionally we see that if two or more eigenvalues are in a permissible range then the inhomogeneous steady state can be a linear combination of the respective eigenfunctions. Finally we show an example which suggests that pattern formation is robust on similar surfaces in cases that the surface either has or does not have a boundary.

Numerical software, science or alchemy? /

Bibliography: p. 23-34.

A semi-virtual memory multi-programming system for the mini-computer PDP 8/3 (ILLIAC-3) /

Thesis (M.S.)--University of Illinois at Urbana-Champaign.

Simulation analysis of a network computer,

Bibliography: p. 43.

Analysis of computer architectures for information retrieval /

Thesis (M. S.)--University of Illinois at Urbana-Champaign.

Further negative results regarding the use of continued fractions for digital computer arithmetic /

Mode of access: Internet.

The statistical estimation of throughput and turnaround functions for a university computer system /

Vita.

Communication net of modular processors for a multiprocessor computer /

"This work was submitted in partial fulfillment of the requirements for the degree of Master of Science in Electrical Engineering, June 1967, and was supported in part by the AEC under Contract No. USAEC AT(11-1)1018.

On a negative result regarding the use of continued fractions for digital computer arithmetic /

Includes bibliographical references.

A computer graphic technique for finding numerical methods for ordinary differential equations.

On cover: COO-1469-0106.

Computer methods for analysis and synthesis of visual texture,

"C00-2118-0048."

RASCEL: a programmable analog computer based on a regular array of stochastic computing element logic

Thesis--University of Illinois.

The status of investigations into the use of continued fractions for computer hardware /

Bibliography: p. 29.