Physical Sciences and Mathematics Commons^™

A Study In Systems Integration Architecture, Sashidhar M. Prasad

Theses

This Thesis studies the two architectures OSCA and ANSA which support the ODPSE principle in the first two parts. In the third part the framework for integrating these two architectures is described. The idea of integration architectures in relation to open architectures is studied using the enabling technologies.

Work-Preserving Real-Time Emulation Of Meshes On Butterfly Networks, Alf-Christian Achilles

Theses

The emulation of a guest network G on a host network H is work-preserving and real-time if the inefficiency, that is the ratio W_G/W_H of the amounts of work done in both networks, and the slowdown of the emulation are O(1).

In this thesis we show that an infinite number of meshes can be emulated on a butterfly in a work-preserving real-time manner, despite the fact that any emulation of an s x s-node mesh in a butterfly with load 1 has a dilation of Ω(logs).

The recursive embedding of a mesh in a butterfly presented by …

Graphical User Interface For Image Processing, Kumar Chebrolu

Theses

A user friendly, menu driven, highly interactive X Windows package for Image Processing Applications using Motif Widget Set under Motif Window Manager is developed. Modules related to Segementation, Enhancement, Representation, Transformations are developed. The above routines are useful for image manipulation. The current gray scale/binary image is displayed on the window. Online histogram is provided so that the user can change the threshold value interactively. The OSF/Motif toolkit is used efficiently and also Xlib calls to display the image by allocating colormap. An on-line image manipulation help menu facility is incorparated in the tool to make it more versatile.

Experiments With The Gap Variation Of Interpolation Search For Semi Uniform Distributed Alphabetic Files, Jatin M. Bhavsar

Theses

There are various techniques for searching a data from a data base. One of them is interpolation search. It works on uniformly distributed and sorted numerical tables and considered to be one of the fastest methods. On an average this method takes 'lg lg n'

Burton and Lewis [BL] shows the inefficiency of interpolation sarch for an alphabetic table whose distribution is not known or non-uniform. They introduce GAP variations of interpolation search to compare the inefficiency. However another approach to a non-uniform is to apply the cumulative distribution function F which transfer a non-uniform distribution to uniform one, for …

The Performance Of Training Pattern Sets In A New Art-Based Neural Architecture For Image Enhancement, Fu-Chun Chang

Theses

Neural network can be applied on the image enhancement after adding another two layers into the Adaptive Resonance Theory architectures (ART 1). The analysis for selecting a nice training pattern set associate the appropriate vigilance values is the main concerns in this thesis. For a single training pattern ,the network can act as a mathematical morphology operators such as erosion , dilation, opening and closing. With more than one training patterns in the network, 16 experiments are tested and are compared to each other in order to find the best selection for doing the image enhancement work. With both the …