Volume 1, No. 2, 2011

By | August 9, 2018

Finding Shortest Path for Developed Cognitive Map Using Medial Axis 

Hazim A. Farhan, Hussein H. Owaied, Suhaib I. Al-Ghazi

Abstract: this paper presents an enhancement of the medial axis algorithm   to be used for finding the optimal shortest path for developed cognitive  map. The cognitive map has been developed, based on the architectural   blueprint maps. The idea for using the medial-axis is to find main path   central pixels; each center pixel represents the center distance between   two side boarder pixels. The need for these pixels in the algorithm comes   from the need of building a network of nodes for the path, where each   node represents a turning in the real world (left, right, critical left, critical  right…). The algorithm also ignores from finding the center pixels paths   that are too small for intelligent robot navigation. The Idea of this   algorithm is to find the possible shortest path between start and end   points. The goal of this research is to extract a simple, robust   representation of the shape of the cognitive map together with the optimal   shortest path between start and end points. The intelligent robot will use   this algorithm in order to decrease the time that is needed for sweeping   the targeted building.

Keywords : Artificial Intelligence; Cognitive Map; Image Processing; Robot, Medial Axis; Shortest Path.

 

Validation Measures in CMMI 

Maher Abdel-qader, Ahmad AL-Jaber, Alaa AL-Hamami

Abstract: Validation is one of the software engineering disciplines that help   build quality into software. The major objective of software validation   process is to determine that the software performs its intended functions   correctly and provide information about its quality and reliability.  This paper identifies general measures for the specific goals and its   specific practices of Validation Process Area (PA) in Capability Maturity   Model Integration (CMMI). CMMI is developed by Software Engineering   Institute (SEI). CMMI is a framework for improvement and assessment of a   software development process. CMMI needs a measurement program that is practical. The method we used to define the measures is to apply the Goal   Question Metrics (GQM) paradigm to the specific goals and its   specific   practices of Validation Process Area in CMMI. 

Keywords : Validation; Measures; CMMI; GQM.

 

Using Short Message Service (SMS) to Support Business Continuity

Maher Abdel-qader, Ahmad AL-Jaber,Alaa AL-Hamami

Abstract: Now a day’s many organizations are required to communicate   online on a daily basis, 24-hour, seven-days-a-week, to gain the desired  competitive advantages and profits; although there are a variety of   disruptions that may occur within business application such as broken (off-  line) database-links and unhanded database exceptions. Such cases will   end the automated business work, and force business users to continue   business procedures and functionalities via paper work, which causes   additional resources with less business competitive advantages. In this   paper, we will propose a new model in which we embed short message   services (SMS) within business applications using the SMS Gateway such as   “Ozeki Message Server”, and programmed application packages. By using   our proposed model, we can maintain business continuity when a partial   disruption occurs and then switch to our application model. As a result to   the experimental work, we conclude that our model supports business  continuity since it supports the account balance modification while the   database link is disrupted. In addition, we carried out each step twice and   the scenario was reliable since all of its steps were reliable. 

Keywords : Business Continuity; Short Message Service; Ozeki Message Server; Tasks Automation; SMS Technology.

 

SLDs for Visualizing Multicolor Elevation Contour Lines in Geo-Spatial Web Applications 

Kodge B. G., Hiremath P. S.

Abstract: This paper addresses the need for geospatial consumers (either   humans or machines) to visualize multicolored elevation contour poly lines   with respect their different contour intervals and control the visual   portrayal of the data with which they work. The current OpenGIS Web Map   Service (WMS) specification supports the ability for an information provider to specify very basic styling options by advertising a preset collection of   visual portrayals for each available data set. However, while a WMS   currently can provide the user with a choice of style options, the WMS can   only tell the user the name of each style. It cannot tell the user what   portrayal will look like on the map. More importantly, the user has no way   of defining their own styling rules. The ability for a human or machine   client to define these rules requires a styling language that the client and   server can both understand. Defining this language, called the   StyledLayerDescriptor (SLD), is the main focus of this paper, and it can be   used to portray the output of Web Map Servers, Web Feature Servers and   Web Coverage Servers. 

Keywords : Styled Layer Descriptors; GIS; Contour Lines; Web Map Services; XML. 

 

Optimal Cell Towers Distribution by using Spatial Mining and Geographic Information System

Alaa H. AL-Hamami, Soukaena H. Hashem

Abstract: The appearance of wireless communication is dramatically   changing our life. Mobile telecommunications emerged as a technological   marvel allowing for access to personal and other services, devices,   computation and communication, in any place and at any time through   effortless plug and play. Setting up wireless mobile networks often   requires: Frequency Assignment, Communication Protocol selection,   Routing schemes selection, and cells towers distributions. This research   aims to optimize the cells towers distribution using spatial mining with   Geographic Information System (GIS) as a tool. The proposed optimized   towers distribution done by applying the Digital Elevation Model (DEM) on   the image of the targeted area should be covered. DEM applied with two   levels of hierarchy, first level for getting the cells and second for getting   best location in each cell. The research will apply the spatial association   rules technique on the second level to select the best square in the cell for   placing the antenna. From that the proposal will try to minimize the   number of installed towers, makes tower’s location feasible, and provides   full area coverage. 

Keywords : Tower; Tower locations; Spatial mining; Digital Elevation Model; Database; and spatial association Rules. 

 

Performance Analysis of AODV under Black Hole Attack through Use of OPNET Simulator 

H. A. Esmaili, M. R. Khalili Shoja, Hossein gharaee

Abstract: Mobile ad hoc networks (MANETs) are dynamic wireless networks   without any infrastructure. These networks are weak against many types of   attacks. One of these attacks is the black hole. In this attack, a malicious   node advertises itself as having freshest or shortest path to specific node   to absorb packets to itself. The effect of black hole attack on ad hoc   network using AODV as a routing protocol will be examined in this   research. Furthermore, we investigate solution for increasing security in   these networks. Simulation results using OPNET simulator depict that   packet delivery ratio in the presence of malicious nodes, reduces notably.    

Keywords : AODV; black hole attack; packet delivery ratio; OPNET.

 

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