Volume 3, Issue 1 (2007) | Journal of Computer Science

Deterministic Timed AFA: A New Class of Timed Alternating Finite Automata

Abdelaziz Fellah — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.1.8

Timed Alternating Finite Automata (TAFA), a natural generalization of Timed Finite Automata (TFA), are synchronous and powerful models for real-time computations. They become an effective and expressi...

Packed Forest Chart Parser

Qi Haoliang — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.9.13

Packed forest chart parser, like the traditional chart parsing algorithm, uses charts to store all the information produced while parsing to avoid redundant works. Its advantage over the traditional c...

A Framework for Distributed Dynamic Load Balancing in Heterogeneous Cluster

Neeraj Nehra — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.14.24

Distributed Dynamic load balancing (DDLB) is an important system function destined to distribute workload among available processors to improve throughput and/or execution times of parallel computer i...

Lossless Compression Using LFSRs

R. Muthiah — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.25.27

While lossy compression techniques are used for images, sound. where feature reproduction is more important than the actual data, it is necessary to use lossless compression for certain files containi...

Formal Analysis of Fault-tolerant Algorithm in the Time-triggered Architecture

Aliouat Zibouda — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.28.34

Time-Triggered architecture (TTA) provides a computing infrastructure for the design and implementation of dependable distributed systems. The core building block of the TTA is the communication proto...

A Secure Protocol Based on a Sedentary Agent for Mobile Agent Environments

Abdelmorhit E. Rhazi — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.35.42

The main challenge when deploying mobile agent environments pertains to security issues concerning mobile agents and their executive platform. This paper proposes a secure protocol which protects mobi...

Towards an Exclusion Mutual Tolerant Algorithm to Failures

M. Senouci — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.43.46

The distributed algorithmic is widely used in various economic and industrial fields as finance, medical, industry, telecommunication. New technologies are increasing rapidly. From now on, application...

Exploring Strategies for Parallel Computing of RS Data Assimilation with SWAP-GA

Shamim Akhter — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.47.50

An agro-hydrological simulation model is useful for agriculture monitoring. One issue in running such model is parameter identification, especially when the target area is large such as provincial or ...

Free Vibration Analysis of a Cross-Ply Laminated Composite Beam on Pasternak Foundation

R. A. Jafari-Talookolaei — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.51.56

In this study, free vibration analysis of a cross-ply laminated composite beam (LCB) on Pasternak foundation was investigated. Natural frequencies of beam on Pasternak foundation are computed using fi...

Distributed Shared Memory Consistency Object-based Model

Abdelfatah A. Yahya — 2007-01-31

Journal of Computer Science, Published online: 31 January 2007; doi:10.3844/jcssp.2007.57.61

A novel model that describes consistency in shared memory was developed, presented and discussed. The new object-based model handles errors of inaccuracy and misrepresentation in distributed shared me...