IJACSA Vol. 3 Issue 7 (2012)

1

Bond Portfolio Analysis with Parallel Collections in Scala

Author 1: Ron Coleman Author 2: Udaya Ghattamanei Author 3: Mark Logan

In this paper, we report the results of new experiments that test the performance of Scala parallel collections to find the fair value of riskless bond portfolios using commodity multicore platforms. We developed four algorithms, each of two kinds in Scala and ran them for one to 1024 portfolios, each… Read full abstract & cite →

parallel functional programming parallel processing multicore processors Scala computational finance.

Abstract doi.org/10.14569/IJACSA.2012.030701 PDF

2

Core Backbone Convergence Mechanisms and Microloops Analysis

Author 1: Abdelali Ala Author 2: Driss El Ouadghiri Author 3: Mohamed Essaaidi

In this article we study approaches that can be used to minimise the convergence time, we also make a focus on microloops phenomenon, analysis and means to mitigate them. The convergence time reflects the time required by a network to react to a failure of a link or a router… Read full abstract & cite →

component FC(Fast-convergence) RSVP(ressource reservation protocol) LDP (Label Distribution Protocol) VPN(Virtual Private Network) LFA (loop free alternate) MPLS (Multiprotocol Label Switching) PIC(Protocol independent convergence) PE(Provider edge router) P(Provider core router ).

Abstract doi.org/10.14569/IJACSA.2012.030702 PDF

3

SVD Based Image Processing Applications: State of The Art, Contributions and Research Challenges

Author 1: Rowayda A Sadek

Singular Value Decomposition (SVD) has recently emerged as a new paradigm for processing different types of images. SVD is an attractive algebraic transform for image processing applications. The paper proposes an experimental survey for the SVD as an efficient transform in image processing applications. Despite the well known fact that… Read full abstract & cite →

SVD Image Processing Singular Value Decomposition Perceptual Forensic.

Abstract doi.org/10.14569/IJACSA.2012.030703 PDF

4

A Modified Feistel Cipher Involving XOR Operation and Modular Arithmetic Inverse of a Key Matrix

Author 1: Dr. V. U K Sastry Author 2: K. Anup Kumar

In this paper, we have developed a block cipher by modifying the Feistel cipher. In this, the plaintext is taken in the form of a pair of matrices. In one of the relations of encryption the plaintext is multiplied with the key matrix on both the sides. Consequently, we use… Read full abstract & cite →

Encryption Decryption Key matrix Modular Arithmetic Inverse.

Abstract doi.org/10.14569/IJACSA.2012.030704 PDF

5

A Modified Feistel Cipher Involving Modular Arithmetic Addition and Modular Arithmetic Inverse of a Key Matrix

Author 1: Dr. V. U K Sastry Author 2: K. Anup Kumar

In this investigation, we have modified the Feistel cipher by taking the plaintext in the form of a pair of square matrices. Here we have introduced the operation multiplication with the key matrices and the modular arithmetic addition in encryption. The modular arithmetic inverse of the key matrix is introduced… Read full abstract & cite →

Encryption Decryption Key matrix Modular Arithmetic Inverse.

Abstract doi.org/10.14569/IJACSA.2012.030705 PDF

6

The Japanese Smart Grid Initiatives, Investments, and Collaborations

Author 1: Amy Poh Ai Ling Author 2: Sugihara Kokichi Author 3: Mukaidono Masao

A smart grid delivers power around the country and has an intelligent monitoring system, which not only keeps track of all the energy coming in from diverse sources but also can detect where energy is needed through a two-way communication system that collects data about how and when consumers use… Read full abstract & cite →

Japanese Smart Grid Initiative Investment Collaboration Low Carbon Emission.

Abstract doi.org/10.14569/IJACSA.2012.030706 PDF

7

Evaluating the Role of Information and Communication Technology (ICT) Support towards Processes of Management in Institutions of Higher Learning

Author 1: Michael Okumu Ujunju Author 2: G. Wanyembi Author 3: Franklin Wabwoba

The role of Information and Communication Technology in achieving organization’s strategic development goals has been an area of constant debate, and as well perceived in different management dimensions. Most universities are therefore employing it (ICT) as a tool for competitive advantage to support the accomplishment of their objectives. Universities are… Read full abstract & cite →

ICT Competitive advantage Strategic management Data.

Abstract doi.org/10.14569/IJACSA.2012.030707 PDF

8

Smart Grids: A New Framework for Efficient Power Management in Datacenter Networks

Author 1: Okafor Kennedy C Author 2: Udeze Chidiebele. C Author 3: E. C. N. Okafor Author 4: C. C. Okezie

The energy demand in the enterprise market segment demands a supply format that accommodates all generation and storage options with active participation by end users in demand response. Basically, with today’s high power computing (HPC), a highly reliable, scalable, and cost effective energy solution that will satisfy power demands and… Read full abstract & cite →

energy density enterprise power budget framework smart grids.

Abstract doi.org/10.14569/IJACSA.2012.030708 PDF

9

An Online Character Recognition System to Convert Grantha Script to Malayalam

Author 1: Sreeraj M Author 2: Sumam Mary Idicula

This paper presents a novel approach to recognize Grantha, an ancient script in South India and converting it to Malayalam, a prevalent language in South India using online character recognition mechanism. The motivation behind this work owes its credit to (i) developing a mechanism to recognize Grantha script in this… Read full abstract & cite →

Grantha scripts Malayalam Online character recognition system.

Abstract doi.org/10.14569/IJACSA.2012.030709 PDF

10

LOQES: Model for Evaluation of Learning Object

Author 1: Sonal Chawla Author 2: Niti Gupta Author 3: Prof. R.K. Singla

Learning Object Technology is a diverse and contentious area, which is constantly evolving, and will inevitably play a major role in shaping the future of both teaching and learning. Learning Objects are small chunk of materials which acts as basic building blocks of this technology enhanced learning and education. Learning… Read full abstract & cite →

Learning Objects Learning Object Repository Peer Review Quality Metrics Reusability Metrics Ranking Metrics.

Abstract doi.org/10.14569/IJACSA.2012.030710 PDF

11

FHC-NCTSR: Node Centric Trust Based secure Hybrid Routing Protocol for Ad Hoc Networks

Author 1: Prasuna V G Author 2: Dr. S Madhusudahan Verma

To effectively support communication in such a dynamic networking environment as the ad hoc networks, the routing mechanisms should adapt to secure and trusted route discovery and service quality in data transmission. In this context, the paper proposed a routing protocol called Node Centric Trust based Secure Hybrid Routing Protocol… Read full abstract & cite →

Ad hoc network Dynamic source routing Hash cains Manet Mobile ad hoc networks NCTS-DSR Routing Potocol SEAD Secure routing .

Abstract doi.org/10.14569/IJACSA.2012.030711 PDF

12

Simultaneous Estimation of Geophysical Parameters with Microwave Radiometer Data based on Accelerated Simulated Annealing: SA

Author 1: Kohei Arai

Method for geophysical parameter estimations with microwave radiometer data based on Simulated Annealing: SA is proposed. Geophysical parameters which are estimated with microwave radiometer data are closely related each other. Therefore simultaneous estimation makes constraints in accordance with the relations. On the other hand, SA requires huge computer resources for… Read full abstract & cite →

simulated annealing microwave radiometer water vapor air-temperature wind speed.

Abstract doi.org/10.14569/IJACSA.2012.030712 PDF

13

Task Allocation Model for Rescue Disabled Persons in Disaster Area with Help of Volunteers

Author 1: Kohei Arai Author 2: Tran Xuan Sang Author 3: Nguyen Thi Uyen

In this paper, we present a task allocation model for search and rescue persons with disabilities in case of disaster. The multi agent-based simulation model is used to simulate the rescue process. Volunteers and disabled persons are modeled as agents, which each have their own attributes and behaviors. The task… Read full abstract & cite →

Task Allocation Model Multi Agent-based Rescue Simulation Auction based Decision Making.

Abstract doi.org/10.14569/IJACSA.2012.030713 PDF

14

Image Clustering Method Based on Density Maps Derived from Self-Organizing Mapping: SOM

Author 1: Kohei Arai

A new method for image clustering with density maps derived from Self-Organizing Maps (SOM) is proposed together with a clarification of learning processes during a construction of clusters. It is found that the proposed SOM based image clustering method shows much better clustered result for both simulation and real satellite… Read full abstract & cite →

Clustering self organizing map separability Learning process Density map Pixel labeling Un-supervised classification.

Abstract doi.org/10.14569/IJACSA.2012.030714 PDF

15

Improving the Solution of Traveling Salesman Problem Using Genetic, Memetic Algorithm and Edge assembly Crossover

Author 1: Mohd. Junedul Haque Author 2: Khalid. W. Magld

The Traveling salesman problem (TSP) is to find a tour of a given number of cities (visiting each city exactly once) where the length of this tour is minimized. Testing every possibility for an N city tour would be N! Math additions. Genetic algorithms (GA) and Memetic algorithms (MA) are… Read full abstract & cite →

NP Hard GA(Genetic algorithms) TSP(Traveling salesman problem) MA(Memetic algorithms) EAX(Edge Assembly Crossover).

Abstract doi.org/10.14569/IJACSA.2012.030715 PDF

16

A Hybrid Technique Based on Combining Fuzzy K-means Clustering and Region Growing for Improving Gray Matter and White Matter Segmentation

Author 1: Ashraf Afifi

In this paper we present a hybrid approach based on combining fuzzy k-means clustering, seed region growing, and sensitivity and specificity algorithms to measure gray (GM) and white matter (WM) tissue. The proposed algorithm uses intensity and anatomic information for segmenting of MRIs into different tissue classes, especially GM and… Read full abstract & cite →

Fuzzy clustering seed region growing performance measure MRI brain database sensitivity and specificity.

Abstract doi.org/10.14569/IJACSA.2012.030716 PDF

17

GUI Database for the Equipment Store of the Department of Geomatic Engineering, KNUST

Author 1: J A Quaye-Ballard Author 2: R. An Author 3: A. B. Agyemang Author 4: N. Y. Oppong-Quayson Author 5: J. E. N. Ablade

The geospatial analyst is required to apply art, science, and technology to measure relative positions of natural and man-made features above or beneath the earth’s surface, and to present this information either graphically or numerically. The reference positions for these measurements need to be well archived and managed to effectively… Read full abstract & cite →

Survey Beacons Survey Instrument Survey Computations GIS DBMS.

Abstract doi.org/10.14569/IJACSA.2012.030717 PDF

18

Comparative Study between the Proposed GA Based ISODAT Clustering and the Conventional Clustering Methods

Author 1: Kohei Arai

A method of GA: Genetic Algorithm based ISODATA clustering is proposed.GA clustering is now widely available. One of the problems for GA clustering is a poor clustering performance due to the assumption that clusters are represented as convex functions. Well known ISODATA clustering has parameters of threshold for merge and… Read full abstract & cite →

GA ISODATA Optimization Clustering.

Abstract doi.org/10.14569/IJACSA.2012.030718 PDF

19

Improving the Rate of Convergence of Blind Adaptive Equalization for Fast Varying Digital Communication Systems

Author 1: Iorkyase E.Tersoo Author 2: Michael O. Kolawole

The recent digital transmission systems impose the application of channel equalizers with bandwidth efficiency, which mitigates the bottleneck of intersymbol interference for high-speed data transmission-over communication channels. This leads to the exploration of blind equalization techniques that do not require the use of a training sequence. Blind equalization techniques however… Read full abstract & cite →

Blind Equalization Channel Equalizer Constant Modulus Algorithm Intersymbol interference Variable Step Size.

Abstract doi.org/10.14569/IJACSA.2012.030719 PDF

20

Throughput Analysis of Ieee802.11b Wireless Lan With One Access Point Using Opnet Simulator

Author 1: Isizoh A N Author 2: Nwokoye A. O.C Author 3: Okide S. O Author 4: Ogu C. D

This paper analyzes the throughput performance of IEEE 802.11b Wireless Local Area Network (WLAN) with one access point. The IEEE 802.11b is a wireless protocol standard. In this paper, a wireless network was established which has one access point. OPNET IT Guru Simulator (Academic edition) was used to simulate the… Read full abstract & cite →

Data-rate buffer size fragmentation threshold throughput Media Access Control (MAC).

Abstract doi.org/10.14569/IJACSA.2012.030720 PDF

21

BPM, Agile, and Virtualization Combine to Create Effective Solutions

Author 1: Steve Kruba Author 2: Steven Baynes Author 3: Robert Hyer

The rate of change in business and government is accelerating. A number of techniques for addressing that change have emerged independently to provide for automated solutions in this environment. This paper will examine three of the most popular of these technologies— business process management, the agile software development movement, and… Read full abstract & cite →

Agile BPM business process management Rapid Solutions Development Virtualization Workflow

Abstract doi.org/10.14569/IJACSA.2012.030721 PDF