IJACSA Vol. 5 Issue 6 (2014)

1

An Open Source P2P Encrypted Voip Application

Author 1: Ajay Kulkarni Author 2: Saurabh Kulkarni

Open source is the future of technology. This community is growing by the day; developing and improving existing frameworks and software for free. Open source replacements are coming up for almost all proprietary software nowadays. This paper proposes an open source application which could replace Skype, a popular VoIP soft… Read full abstract & cite →

voip softphone java open source

Abstract doi.org/10.14569/IJACSA.2014.050601 PDF

2

The Coverage Analysis for Low Earth Orbiting Satellites at Low Elevation

Author 1: Shkelzen Cakaj Author 2: Bexhet Kamo Author 3: Algenti Lala Author 4: Alban Rakipi

Low Earth Orbit (LEO) satellites are used for public networking and for scientific purposes. Communication via satellite begins when the satellite is positioned in its orbital position. Ground stations can communicate with LEO satellites only when the satellite is in their visibility region. The duration of the visibility and the… Read full abstract & cite →

LEO satellite coverage

Abstract doi.org/10.14569/IJACSA.2014.050602 PDF

3

Estimating Null Values in Database Using CBR and Supervised Learning Classification

Author 1: Khaled Nasser ElSayed

Database and database systems have been used widely in almost, all life activities. Sometimes missed data items are discovered as missed or null values in the database tables. The presented paper proposes a design for a supervised learning system to estimate missed values found in the university database. The values… Read full abstract & cite →

DataBase(DB) Data mining Case-Based Reasoning (CBR) Classification Null Values Supervised Learning

Abstract doi.org/10.14569/IJACSA.2014.050603 PDF

4

An Experience of Taiwan Policy Development To Accelerate Cloud Migration

Author 1: Sheng-Chi Chen

developing cloud computing is a key policy for government, while convenient service is an important issue for people living. In the beginning of 2010, the Taiwan Government has launched a “Cloud Computing Development Project”, and has devoted to service planning and investment activities. At the end of 2012, in a… Read full abstract & cite →

Cloud Computing Action Research Project Management Office

Abstract doi.org/10.14569/IJACSA.2014.050604 PDF

5

Educational Data Mining Model Using Rattle

Author 1: Sadiq Hussain Author 2: G.C. Hazarika

Data Mining is the extraction of knowledge from the large databases. Data Mining had affected all the fields from combating terror attacks to the human genome databases. For different data analysis, R programming has a key role to play. Rattle, an effective GUI for R Programming is used extensively for… Read full abstract & cite →

Educational Data Mining R Programming Rattle ROC Curve Support Vector Machine Random Forest

Abstract doi.org/10.14569/IJACSA.2014.050605 PDF

6

Individual Syllabus for Personalized Learner-Centric E-Courses in E-Learning and M-Learning

Author 1: Khaled Nasser ElSayed

Most of e-learning and m-learning systems are course-centric. These systems provided services that concentrated on course material and pedagogical. They did not take into account varieties of student levels, skills, interests or preferences. This paper provides a design of an approach for personalized and self-adapted agent-based learning systems for enhancing… Read full abstract & cite →

AI Agent education e-Learning m-Learning Semantic Net

Abstract doi.org/10.14569/IJACSA.2014.050606 PDF

7

Security Policies for Securing Cloud Databases

Author 1: Ingrid A. Buckley Author 2: Fan Wu

Databases are an important and almost mandatory means for storing information for later use. Databases require effective security to protect the information stored within them. In particular access control measures are especially important for cloud databases, because they can be accessed from anywhere in the world at any time via… Read full abstract & cite →

relational database cloud security threats hackers security patterns cloud database

Abstract doi.org/10.14569/IJACSA.2014.050607 PDF

8

Comparative Performance Analysis of Feature(S)-Classifier Combination for Devanagari Optical Character Recognition System

Author 1: Jasbir Singh Author 2: Gurpreet Singh Lehal

this paper presents a comparative performance analysis of feature(s)-classifier combination for Devanagari optical character recognition system. For performance evaluation, three classifiers namely support vector machines, artificial neural networks and k-nearest neighbors, and seven feature extraction approaches viz. profile direction codes, transition, zoning, directional distance distribution, Gabor filter, discrete cosine transform… Read full abstract & cite →

Artificial Neural Network DCT Directional Distance Distribution Feature extraction Gabor k-Nearest Neighbour Profile direction codes Support Vector Machines Transition Zoning

Abstract doi.org/10.14569/IJACSA.2014.050608 PDF

9

Principle of Duality on Prognostics

Author 1: Mohammad Samie Author 2: Amir M. S. Motlagh Author 3: Alireza Alghassi Author 4: Suresh Perinpanayagam Author 5: Epaminondas Kapetanios

The accurate estimation of the remaining useful life (RUL) of various components and devices used in complex systems, e.g., airplanes remain to be addressed by scientists and engineers. Currently, there area wide range of innovative proposals put forward that intend on solving this problem. Integrated System Health Management (ISHM) has… Read full abstract & cite →

Prognostic Model Integrated System Health Management (ISHM) Degradation Duality Cuk Converter

Abstract doi.org/10.14569/IJACSA.2014.050609 PDF

10

Domain Based Prefetching in Web Usage Mining

Author 1: Dr. M. Thangaraj Author 2: Mrs. V. T. Meenatchi

In the current web scenario, the Internet users expect the web to be more friendly and meaningful with reduced network traffic. Every end user needs the channel with high bandwidth. In order to reduce the web server load, the access latency and to improve the network bandwidth from heavy network… Read full abstract & cite →

Latency Domain Prefetching bandwidth Network Traffic Web Log File

Abstract doi.org/10.14569/IJACSA.2014.050610 PDF

11

Teaching Introductory Programming

Author 1: Ljubomir Jerinic

From the educational point of view, learning by mistake could be influential teaching method, especially for teaching/learning Computer Science (CS), and/or Information Technologies (IT). As learning programming is very difficult and hard task, perhaps even more difficult and extremely demanding job to teach novices how to make correct computers programs… Read full abstract & cite →

Pedagogical Pattern Pattern Design Learning Programming Computer science education Programming Software agents Electronic learning Computer aided instruction

Abstract doi.org/10.14569/IJACSA.2014.050611 PDF

12

Development Process Patterns for Distributed Onshore/Offshore Software Projects

Author 1: Ravinder Singh Author 2: Dr. Kevin Lano

the globalisation of the commercial world, and the use of distributed working practices (Offshore/ onshore/ near-shore) has increased dramatically with the improvement of information and communication technologies. Many organisations, especially those that operate within knowledge intensive industries, have turned to distributed work arrangements to facilitate information exchange and provide competitive… Read full abstract & cite →

Distributed work Onshore Offshore Software IT projects Programme and project Management

Abstract doi.org/10.14569/IJACSA.2014.050612 PDF

13

System Autonomy Modeling During Early Concept Definition

Author 1: Rosteslaw M. Husar Author 2: Jerrell Stracener

The current rapid systems engineering design methods, such as AGILE, significantly reduce the development time. This results in the early availability of incremental capabilities, increases the importance of accelerating and effectively performing early concept trade studies. Current system autonomy assessment tools are level based and are used to provide the… Read full abstract & cite →

Systems Engineering Autonomous Systems Requirements Engineering System of Systems component System Autonomy Modeling

Abstract doi.org/10.14569/IJACSA.2014.050613 PDF

14

Prototype of a Web ETL Tool

Author 1: Matija Novak Author 2: Kornelije Rabuzin

Extract, transform and load (ETL) is a process that makes it possible to extract data from operational data sources, to transform data in the way needed for data warehousing purposes and to load data into a data warehouse (DW). ETL process is the most important part when building the data… Read full abstract & cite →

ETL data warehouse web ETL tool

Abstract doi.org/10.14569/IJACSA.2014.050614 PDF

15

Using an MPI Cluster in the Control of a Mobile Robots System

Author 1: Mohamed Salim LMIMOUNI Author 2: Saïd BENAISSA Author 3: Hicham MEDROMI Author 4: Adil SAYOUTI

Recently, HPC (High Performance Computing) systems have gone from supercomputers to clusters. The clusters are used in all tasks that require very high computing power such as weather forecasting, climate research, molecular modeling, physical simulations, cryptanalysis, etc. The use of clusters is increasingly important in the scientific community, where the… Read full abstract & cite →

clusters MPI parallel programming mobile systems mobile robots

Abstract doi.org/10.14569/IJACSA.2014.050615 PDF

16

Simulation of Performance Execution Procedure to Improve Seamless Vertical Handover in Heterogeneous Networks

Author 1: Omar Khattab Author 2: Omar Alani

One challenge of wireless networks integration is the ubiquitous wireless access abilities which provide the seamless handover for any moving communication device between different types of technologies (3GPP and non-3GPP) such as Global System for Mobile Communication (GSM), Wireless Fidelity (Wi-Fi), Worldwide Interoperability for Microwave Access (WiMAX), Universal Mobile Telecommunications… Read full abstract & cite →

Vertical Handover (VHO) Media Independent Handover (MIH) Interworking Architectures Mobile IPv4 (MIPv4) Heterogeneous Wireless Networks

Abstract doi.org/10.14569/IJACSA.2014.050616 PDF

17

Toward an Effective Information Security Risk Management of Universities’ Information Systems Using Multi Agent Systems, Itil, Iso 27002,Iso 27005

Author 1: S. FARIS Author 2: S.EL HASNAOUI Author 3: H.MEDROMI Author 4: H.IGUER Author 5: A.SAYOUTI

Universities in the public and private sectors depend on information technology and information systems to successfully carry out their missions and business functions. Information systems are subject to serious threats that can have adverse effects on organizational operations and assets, and individuals by exploiting both known and unknown vulnerabilities to… Read full abstract & cite →

Information security information systems multi agent systems ITIL V3 ISO 27002 ISO 27005

Abstract doi.org/10.14569/IJACSA.2014.050617 PDF

18

A Novel Cloud Computing Security Model to Detect and Prevent DoS and DDoS Attack

Author 1: Masudur Rahman Author 2: Wah Man Cheung

Cloud computing has been considered as one of the crucial and emerging networking technology, which has been changed the architecture of computing in last few years. Despite the security concerns of protecting data or providing continuous service over cloud, many organisations are considering different types cloud services as potential solution… Read full abstract & cite →

Denial of Service attack Distributed Denial of Service Attack mechanism of DoS and DDoS attack framework to prevent DDoS attack hardware based watermarking

Abstract doi.org/10.14569/IJACSA.2014.050618 PDF

19

Fast Efficient Clustering Algorithm for Balanced Data

Author 1: Adel A. Sewisy Author 2: M. H. Marghny Author 3: Rasha M. Abd ElAziz Author 4: Ahmed I. Taloba

The Cluster analysis is a major technique for statistical analysis, machine learning, pattern recognition, data mining, image analysis and bioinformatics. K-means algorithm is one of the most important clustering algorithms. However, the k-means algorithm needs a large amount of computational time for handling large data sets. In this paper, we… Read full abstract & cite →

Clustering K-means algorithm Bee algorithm GA algorithm FBK-means algorithm

Abstract doi.org/10.14569/IJACSA.2014.050619 PDF

20

Encrypted With Fuzzy Compliment-Max-Product Matrix in Watermarking

Author 1: Sharbani Bhattacharya

Watermark is used to protect copyright and to authenticate images. In digital media, today’s world images are in electronic form available in the internet. For its protection and authentication invisible watermarking in encrypted form are used. In this paper encryption is done using fuzzy Compliment-Max-Product matrix and then encrypted watermark… Read full abstract & cite →

Watermarking Fuzzy Compliment-Max-Product Matrix Fuzzification Encryption

Abstract doi.org/10.14569/IJACSA.2014.050620 PDF

21

Watermarking Digital Image Using Fuzzy Matrix Compositions and Rough Set

Author 1: Sharbani Bhattacharya

Watermarking is done in digital images for authentication and to restrict its unauthorized usages. Watermarking is sometimes invisible and can be extracted only by authenticated party. Encrypt a text or information by public –private key from two fuzzy matrix and embed it in image as watermark. In this paper we… Read full abstract & cite →

Fuzzy Product-Mod-Minus Matrix Fuzzy Compliment-Product-Minus Matrix Fuzzy Rough set Watermarking Encrypting

Abstract doi.org/10.14569/IJACSA.2014.050621 PDF

22

The Solution Structure and Error Estimation for The Generalized Linear Complementarity Problem

Author 1: Tingfa Yan

In this paper, we consider the generalized linear complementarity problem (GLCP). Firstly, we develop some equivalent reformulations of the problem under milder conditions, and then characterize the solution of the GLCP. Secondly, we also establish the global error estimation for the GLCP by weakening the assumption. These results obtained in… Read full abstract & cite →

GLCP solution structure error estimation

Abstract doi.org/10.14569/IJACSA.2014.050622 PDF

23

Forecasting Rainfall Time Series with stochastic output approximated by neural networks Bayesian approach

Author 1: Cristian Rodriguez Rivero Author 2: Julian Antonio Pucheta

The annual estimate of the availability of the amount of water for the agricultural sector has become a lifetime in places where rainfall is scarce, as is the case of northwestern Argentina. This work proposes to model and simulate monthly rainfall time series from one geographical location of Catamarca, Valle… Read full abstract & cite →

rainfall time series stochastic method bayesian approach computational intelligence

Abstract doi.org/10.14569/IJACSA.2014.050623 PDF

24

Estimation of Water Quality Parameters Using the Regression Model with Fuzzy K-Means Clustering

Author 1: Muntadher A. SHAREEF Author 2: Abdelmalek TOUMI Author 3: Ali KHENCHAF

the traditional methods in remote sensing used for monitoring and estimating pollutants are generally relied on the spectral response or scattering reflected from water. In this work, a new method has been proposed to find contaminants and determine the Water Quality Parameters (WQPs) based on theories of the texture analysis… Read full abstract & cite →

In situ data measurements IKONOS data water quality parameters GLCM empirical models fuzzy K-means clustering

Abstract doi.org/10.14569/IJACSA.2014.050624 PDF

25

A Compound Generic Quantitative Framework for Measuring Digital Divide

Author 1: Noureldien A. Noureldien

The term digital divide had been used in the literature to conceptualize the gap in using and utilizing information and communication technologies. Digital divide can be identified on different levels such as individuals, groups, societies, organizations and countries. On the other hand, the concept of e-Inclusion is coined to define… Read full abstract & cite →

Digital Divide Digital Divide Indicator E-inclusion Inclusion Factors Inclusion Activities

Abstract doi.org/10.14569/IJACSA.2014.050625 PDF

26

XCS with an internal action table for non-Markov environments

Author 1: Tomohiro Hayashida Author 2: Ichiro Nishizaki Author 3: Keita Moriwake

To cope with sequential decision problems in non- Markov environments, learning classifier systems using the internal register have been proposed. Since, by utilizing the action part of classifiers, these systems control the internal register in the same way as choosing actions to the environment, they do not always work well… Read full abstract & cite →

Learning classifier systems Non-Markov environments XCS Internal register.

Abstract doi.org/10.14569/IJACSA.2014.050626 PDF