Volume 3, Issue 9 (2007) | Journal of Computer Science

Analysis of Hierarchical Diff-EDF Schedulability over Heterogeneous Real-Time Packet Networks

Moutaz Saleh — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.673.684

Packet networks are currently enabling the integration of traffic with a wide range of characteristics that extend from video traffic with stringent QoS requirements to the best-effort traffic requiri...

Arabic Speech Pathology Therapy Computer Aided System

Z. A. Benselama — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.685.692

This article concerns a computer aided pathological speech therapy program, based on speech models such as the hidden Markov model and artificial intelligence networks, in order to help persons, suffe...

Adaptive Control of Networked Systems in the Presence of Bounded Disturbances

A. H. Tahoun — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.693.699

The insertion of data network in the feedback adaptive control loops makes the analysis and design of networked control systems more complex than traditional control systems. This paper addresses the ...

A Swarm-based Distance Vector Routing to Support Multiple Quality of Service (QoS) Metrics in Mobile Adhoc Networks

R. Asokan — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.700.707

Quality of Service support for Mobile Ad-hoc Networks is a challenging task due to dynamic topology and limited resource. The main purpose of QoS routing is to find a feasible path that has sufficient...

Support Measure Admissibility Based on Operations on Instance Graphs

Ford Lumban Gaol — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.708.716

The concept of support is central to data mining. While the definition of support in transaction databases is intuitive and simple, that is not the case in graph datasets and databases. Most mining al...

Experimental Comparison Between Evolutionary Algorithm and Barycenter Heuristic for the Bipartite Drawing Problem

Zoheir Ezziane — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.717.722

This research investigates the use of intelligent techniques for the bipartite drawing problem (BDP). Due to the combinatorial nature of the solution space, the use of traditional search methods lead ...

Feature Selection in Data-Mining for Genetics Using Genetic Algorithm

V. N. Rajavarman — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.723.725

We discovered genetic features and environmental factors which were involved in multifactorial diseases. To exploit the massive data obtained from the experiments conducted at the General Hospital, Ch...

Policy-Based Security for Wireless Components in High Assurance Computer Systems

Luay A. Wahsheh — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.726.735

To enable the growth of wireless networks in high assurance computer systems, it is essential to establish a security engineering methodology that provides system security managers with a procedural e...

Modified Hill Cipher with Key Dependent Permutation and Circular Rotation

V.U.K. Sastry — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.736.739

In this study, we have modified the Hill cipher, by including a permutation and circular rotation into the cipher. Here both the permutation and the rotation depend upon the key. From the cryptanalysi...

Combined DWT-DCT Digital Image Watermarking

Ali Al-Haj — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.740.746

The proliferation of digitized media due to the rapid growth of networked multimedia systems, has created an urgent need for copyright enforcement technologies that can protect copyright ownership of...

Data-Driven Forecasting Schemes: Evaluation and Applications

Josip Vrbanek Jr — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.747.753

A reliable multi-step predictor is very useful to a wide array of applications to forecast the behavior of dynamic systems. The objective of this paper is to develop a more robust data-driven predicto...

Parallel Algorithms for String Matching Problem on Single and Two Dimensional Reconfigurable Pipelined Bus Systems

S. Viswanadha Raju — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.754.759

We considered string matching on LARPBS and 2D LARPBS. This has applications such as string databases, cellular automata and computational biology. The main use of this method is to reduce the time sp...

Performance Comparison of Different Image Sizes for Recognizing Unconstrained Handwritten Tamil Characters using SVM

N. Shanthi — 2007-09-30

Journal of Computer Science, Published online: 30 September 2007; doi:10.3844/jcssp.2007.760.764

This study describes a system for recognizing offline handwritten Tamil characters using Support Vector Machine (SVM). Data samples are collected from different writers on A4 sized documents. They are...