International Journal of Information Technology and Computer Science @ijitcs
Статьи журнала - International Journal of Information Technology and Computer Science
Все статьи: 1227
Why should municipalities use management information systems in their decision-making processes?
Статья научная
In recent years, rapid developing information and communication technology has been changing swiftly our insight of management perspective in our country and the World. Generally, dynamic and visionary private sector enterprises could easily adapt to these changes. From the point of information systems view, local governments just like the private sector which produce services. Local governments provide services to people living within the boundaries, but they never think or act as profit-oriented private sector. In new economy, cities are becoming more interconnected economically, culturally, and infrastructural through the parallel development of global telecommunication and transportation networks. Firstly, it has been investigated what factors affect the adoption of information technologies in Izmir Metropolitan Municipality. A survey was developed to measure the factors affecting the use of information technology in municipalities. The survey questions were prepared according to the effects of the above organizational factors. Also it was conducted with the managers of the branch manager level in Izmir Metropolitan Municipality. Finally, the results of the study were discussed and give a contribution to the literature.
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Статья научная
This paper examines the potential of existing web-based collaboration services in supporting the inter-organizational connectivity throughout the collaboration process. In doing so, the paper initially presents a brief overview and a hierarchical classification with respect to the degree and complexity of service integration of existing collaboration services which are applicable in inter-organizational settings. Successively, their shortcomings in supporting the process of inter-organizational collaboration are herein determined and discussed. As a conclusion, the paper elucidates the rational and need for designing the dedicated web-based collaboration platforms for facilitating the inter-organizational connectivity within a particular business sector.
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Статья научная
In this paper, a comparative study of Wideband MUSIC method, Joint Diagonalization Structure (JDS) method and Beam-Space Genetic Algorithm (BGA) is presented with respect to resolution probability and Root mean square error (RMSE) evaluated in both low and high Signal-to-Noise ratio (SNR) regions. The simulation results show that BGA has higher resolution probability than the JDS method and Wideband MUSIC method in low SNR region while in the high SNR region, Wideband MUSIC has higher resolution probability followed by BGA and JDS method. RMSE is smallest for BGA as compared to JDS and Wideband MUSIC in low SNR region. In the high SNR region, Wideband MUSIC has smallest RMSE followed by BGA and JDS method.
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Статья научная
Wireless sensor network (WSN) has emerged as potential technology for their applications in battlefields, infrastructure building, traffic surveillance, habitat monitoring, health, and smart homes. Unattended nature of these networks makes them vulnerable to variety of attacks, the inherent stringent resources makes conventional security measure infeasible. An attacker can capture a sensor node to install number of clone nodes with same privacy information causing serious security threats and deterioration in network lifetime. Current, security scheme along with distinct advantages suffer from number of limitations. A good counter attacks measure should not only cater for security and energy-efficiency but network lifetime as well. In this paper, we propose a next-node selection method which consider residual energy and clone attacks ratio in addition to distance, in order to overcome the limitation of fixed path based shortest routing. These factors are also considered while selecting the witness header in WSNs. Results demonstrate the efficacy of the proposed schemes in terms of network lifetime.
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eSMS - a Semantics-assisted Emergency Information System Based on Social Media
Статья научная
Natural and man-made disasters pose an ever-present threat to our society. Providing real time information is vital in emergency management. Current disaster information systems only use and manage relatively limited information, such as, within an organization or with a few organizations which have an agreement on information content and format. As a result, a large amount of potentially precious information and natural volunteer workers are ignored. On the other hand, social media have been used by people to propagate emergent situations. Therefore, in this project, we aim to maximally utilize all of the available emergency-related information from various sources of social media to better manage natural and man-made disasters. In particular, we propose a semantics-extended social search engine that can fetch highly relevant information from social media for emergency management purpose.
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gSemSim: Semantic Similarity Measure for Intra Gene Ontology Terms
Статья научная
Gene Ontology (GO) is an important bioinformatics scheme to unify the representation of gene and gene product attributes across all species. Measuring similarity or distance between GO terms is a key step for determining hidden relationship between genes. The notion of similarity between GO terms is a usual step in knowledge discovery related tasks. In literature various similarity measures between GO terms have been proposed. We have introduced a novel similarity measure scheme to improve three conventional similarity measures to reduce their limitations. The salient feature of the proposed GO Semantic Similarity (gSemSim) measure is its ability to show more realistic similarity between concepts in perspective of domain knowledge. A comparative result with other technique has also been presented that showing an improved contextual meaning of the proposed semantic similarity. This study is expected to assist the community of bio informaticians in the selection of better similarity measure required for correct annotations of genes in gene ontology.
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iText – SMS-based Web Services for Low-end Cell Phones
Статья научная
With the development of mobile wireless technology, more people are using their smart phones to browse Web sites, do social networking, and play online games. However, a significant fraction of people in developing regions are still using simple low-end devices with limited processing and communication capabilities. Access to Internet contents and services is currently available only for Internet-enabled, Internet-capable smart devices. To address this problem, in this paper, we propose a Short Messaging Service (SMS)-based service to enable low-end cell phones to access Internet and Web services. In particular, we designed a service called iTex, allowing users to use Google web services through text messages even if they do not own Internet-enabled and Internet-capable smart devices.
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