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As Grids try to achieve optimal and balanced utilization of unused resources in a distributed system, efficient resource discovery mechanism is one of the fundamental requirement for Grid computing systems, as it aids in resource management and scheduling of applications. Resource discovery in Grid is a challenging issue because characteristics of its resources are heterogeneous, dynamic, various...
The problem of solving large systems of linear equations of the form (Ax = b) arises in various applications such as finite element analysis, computational fluid dynamics, and power systems analysis, which is of high algorithms complexities, that takes a lot of execution time. The high computational power required for fast solution of such problem is beyond the reach of present day conventional uniprocessor...
E-payment is considered a cornerstone in daily e-transactions. There are many proposed e-payment protocols but the majority of such protocols were designed just to satisfy the traditional flow of payment data which increases the users' risk because of security vulnerabilities and privacy leakage. The Secure Electronic Transaction protocol (SET), a de facto standard, is limited in application due to...
With the increase of data volume, advanced query operators, such as skyline queries, are necessary in order to help users to handle the huge amount of available data by identifying a set of interesting data objects. Skyline queries help us to filter unnecessary information efficiently and provide us clues for various decision making tasks. Most of the existing skyline algorithms can not preserve individual's...
This paper aims to develop a GIS-based decision support system to help in improving the police personnel response to crimes. The system aids the police personnel to get critical spatial and non-spatial information. The system can identify the nearest police stations to the crime location, and also determine the shortest route from the selected police station to the crime location. Moreover, in case...
The most accurate evacuation plan should be developed based on those areas which are not affected by the damage gained by an emergency event. In this paper, three emergency models are provided: fire danger rating, hurricane index, and earthquake's affected area estimation. The system conducts a spatial overlay and proximity analysis resulting in a buffer zone shown on map around any emergency event...
Quad tree is a common raster data structure that uses recursive decomposition to divide a raster into a hierarchy of quadrants. This papers aims to develop a vectorization model for the conversion of quad tree satellite images to vector format that can be used and processed in geographic information systems (GIS) projects. The proposed model consists of four main phases: applying noise removal filter,...
Service-oriented architecture (SOA) is an architectural style of software systems, in which a system is composed of isolated or independent services. XML has become the most common way for information exchange and data representation in SOA. Electronic bill presentment and payment (EBPP) is one of the most critical SOA applications for which security a major concern. State-based XML firewall systems...
The frequent encounter of incorrectly functioning Arabic Websites, especially those of large businesses and governments calls for a clear and applied framework to help practitioners develop properly functioning Websites. The issue of Website internationalization has been addressed in a plethora of standards, guideline, good practices, and tutorials. However, these standards with their formal language...
The deployment of security measures and the provision of quality of service represents two critical and tightly coupled challenges in the design and operation of network services, architectures, and protocols in today's converged communication networks. Security and performance are not necessarily proportional to each other. It is common that; high security measures lead to high reliability results...
Unfortunately, the Grid Computing doesn't support the business collaboration needs, due to many issues, e.g. the lack of standards for the Grid services. Although, the Grid infrastructure faces big challenges in interoperability, the Open Grid Services Architecture (OGSA) has been developed for the Grid applications. We believe that the cloud environment can be converged with the Grid environment,...
In this paper we propose a graph transformation based approach and a tool for transforming business patterns to Colored Petri nets for which efficient analysis techniques exist. First, we specify business patterns and Colored Petri nets MetaModels in UML Class Diagram formalism with the Meta-Modelling tool Atom3, then we generate visual modelling tools according to the proposed Meta-Models. Finally,...
Enterprise Information Architecture (EIA) is a critical success factor for Business Process Re-engineering (BPR) and Information management. The knowledge of business information provides a vital leverage to the design of enterprise information architecture. This paper proposes an approach for semantically deriving EIA of an enterprise from the ontological representation of a given Business Process...
Semantic Search importance is becoming more valuable each day as the extent of information on the web increases, thus making information mining a tedious operation. In the past few years various solutions appeared to support in the propagation of semantic search like natural language interfaces (NLIs) and guided systems, but unfortunately these haven't reached maturity yet and still have their set...
The importance of healthcare information technology has increased dramatically during the past few years. Researchers, developers, and companies have placed efforts to develop mobile, web, desktop, and enterprise e-health applications. This development raised the importance of interoperability and data exchange between e-health applications and Health Information Systems (HIS), which resulted in increased...
This paper proposes a novel model for a car like wheeled mobile robot with back trailer. The proposed model is the first step in developing an auto parking control system for assisting non-professional drivers. The kinematics analysis of the front car shows the singularity problem of the system, which is expressed by means of non-holonomic constraints. A virtual new actuated kinematics is developed...
This paper aims to get the maximum power from the Photovoltaic generators given I-V characteristics that vary with solar insolation and temperature. Then the paper describes a technique for charging a battery from solar panel at optimum set point condition using ATmega 32 microcontroller. Simulation with Protues software is performed to be compared with practical result.
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