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The Fifth International Conference on Information Assurance and Security(第五届信息保障与安全国际会议)

作者： Ganthan Narayana Samy Rabiah Ahmad Zuraini Ismail Department of Computer Systems and Communications Faculty of Computer Science and Information System Centre for Advanced Software Engineering (CASE) Faculty of Computer Science and Information Systems Department of Science College of Science and Technology Universiti Teknologi Malaysia (UTM) Malaysia

ISBN: (纸本)9781424451012

The purpose of this paper is to identify the threats that exist in Healthcare Information systems (HIS). The study has been carried out in three different departments namely, Information Technology department (ITD), Medical Record department (MRD) and X-Ray department in one of the leading government supported hospital in Malaysia. The hospital was equipped with Total Hospital Information System (THIS) environment. The data were collected using in-depth structured interviews. The study identified 22 types of threats according to major threat categories based on ISO/IEC 27002 (ISO 27799:2008). The result shows the most critical threat for the THIS is the power failure. In addition, acts of human error or failure threat also show high frequency of occurrence. The contribution of the paper will be categorization of threats in HIS and can be used to design and implement effective security systems and policies in healthcare setting.

关键词： Threats Healthcare Information systems (HIS) Information Security Risk Analysis

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Minimal exposure path algorithms for directional sensor networks

Minimal exposure path algorithms for directional sensor netw...

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2009 IEEE Global Telecommunications Conference, GLOBECOM 2009

作者： Liu, Liang Zhang, Xi Ma, Huadong Networking and Information Systems Laboratory Department of Electrical and Computer Engineering Texas A and M University College Station TX 77843 United States Beijing Key Lab. of Intelligent Telecomm. Software and Multimedia Beijing University of Posts and Telecomm. Beijing 100876 China

ISBN: (纸本)9781424441488

As a fundamental problem of wireless sensor networks, the minimal exposure path problem corresponding to the sensor network's worst-case coverage plays an important role in the applications for detecting intrusions. However, most existing works about minimal exposure path are based on omnidirectional sensors. In contrast, this paper studies the minimal exposure path problem for directional sensor networks. We first develop a directional sensing model: directional sensitivity model. Then, we formulate the minimal exposure path problem by using two sensing intensity functions: all-sensor intensity function and maximum-sensor intensity function, and generate two weighted grids to convert the minimal exposure path problem into two discrete geometric problems. Based on the above weighted grids, we also develop two approximation algorithms to find the minimal exposure path for the directional sensitive model. We conduct extensive simulations to validate and evaluate our proposed models and algorithms.

关键词： Wireless sensor networks

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Constructing a new communication system by integrating the GSM to the satellites infrastructure

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WSEAS Transactions on Communications 2009年第2期8卷 217-226页

作者： Al-Ani, Muzhir Sh. Al-Kasasbeh, Basil M. Al-Qutaish, Rafa E. Muhairat, Mohammad I. Department of Computer Science Amman Arab University Amman 11953 Jordan Department of Computer Networks Systems Applied Science University Amman 11931 Jordan Department of Software Engineering Alzaytoonah University of Jordan Amman 11733 Jordan

The current researches and industries are looking forward to integrate different technologies to get a global technology that offers all of the intended services in a simple way. In this paper, a new communications system is proposed to integrate the use of GSM over the available satellites infrastructures. The proposed communications system could be used to facilitates and get benefits of both systems (the GSM and Satellites) to achieve competitive services over the world. The proposed system is concentrated on a global communications system that served all over the world and gives some specialization and privacy for each country. Furthermore, this paper shows an algorithm on how to implement the GSM over satellite systems in an efficient, flexible, and cost-effective manner.

关键词： Cost effectiveness

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Exposure-path prevention in directional sensor networks using sector model based percolation

Exposure-path prevention in directional sensor networks usin...

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2009 IEEE International Conference on Communications, ICC 2009

作者： Liang, Liu Xi, Zhang Huadong, Ma Networking and Information Systems Laboratory Department of Electrical and Computer Engineering Texas A and M University College Station TX 77843 United States Beijing Key Lab. of Intelligent Telecomm. Software and Multimedia Beijing University of Posts and Telecomm. Beijing 100876 China

ISBN: (纸本)9781424434350

In wireless sensor networks, most existing works on region coverage mainly concentrate on the omnidirectional sensor based full coverage, which ensures that all points in the sensor-deployed region are covered. In contrast, this paper studies the problem of exposure-path prevention for the region coverage in directional sensor networks. Because the exposure paths are prevented as long as no moving objects or phenomena can go through a sensor-deployed region without being detected, exposure-path prevention does not require full coverage, and instead it only needs the partial coverage. Towards this end, we apply the percolation theory to solve the exposure path problem for directional sensor networks. In particular, we map the exposure path problem into a sector based percolation model, and then derive the bounds of critical density where directional sensors are deployed according to a 2-dimensional Poisson process. Also conducted is a set of extensive simulations to validate and evaluate our developed models and schemes. ©2009 IEEE.

关键词： Wireless sensor networks

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A Heuristic Approach for Capacity Control in Clouds

A Heuristic Approach for Capacity Control in Clouds

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IEEE International Conference on E-Commerce Technology Workshops

作者： Arun Anandasivam Stefan Buschek Rajkumar Buyya Institute for Information Systems and Management University of Karlsruhe Germany Grid Computing and Distributed Systems Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia

ISBN: (纸本)9781424446469;9780769537559

Cloud resource providers in a market face dynamic and unpredictable consumer behavior. The way, how prices are set in a dynamic environment, can influence the demand behavior of price sensitive customers. A cloud resource provider has to decide on how to allocate his scarce resources in order to maximize his profit. The application of bid price control for evaluating incoming service requests is a common approach for capacity control in network revenue management. In this paper we introduce a customized version of the concept of self-adjusting bid prices and apply it to the area of cloud computing. Furthermore, we perform a simulation in order to test the efficiency of the proposed model.

关键词： Resource management Cloud computing Grid computing Consumer behavior Computational modeling Business Distributed computing Control systems Management information systems Conference management

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A Metadata Search Approach with Branch and Bound Algorithm to Keyword Query in Relational Databases

A Metadata Search Approach with Branch and Bound Algorithm t...

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International Conference on computer Sciences and Convergence Information Technology (ICCIT)

作者： Jarunee Saelee Veera Boonjing Software Systems Engineering Laboratory Department of Computer Science Faculty of Science King Mongkut's Institute of Technology Ladkrabang Bangkok Thailand

Search engines on the Web have popularized the keyword-based search paradigm, while searching in databases users need to know a database schema and a query language. Keyword search techniques on the Web cannot directly be applied to databases because the data on the Internet and database are in different forms. So keyword search systems in relational databases have recently proposed. However existing systems limit type of keywords to database value terms, and generally assumed that answers are in instance level. Thus, this research aims to propose an effective approach for free-form keyword searching in databases which allows users to search either with database value terms, metadata terms or user terms. The metadata model accommodates these terms as well as underlying database semantics. Moreover, we present a branch and bound algorithm used for finding the optimal answer graphs. Our preliminary experiment results confirm precision of our approach.

关键词： Relational databases Keyword search Database languages Internet Motion pictures software systems Data engineering systems engineering and theory Laboratories computer science

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Using Quality Audits to Assess software Course Projects

Using Quality Audits to Assess Software Course Projects

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Conference on software engineering Education & Training (CSEE&T)

作者： Wilson Pádua Synergia Systems and Software Engineering Laboratory Computer Science Department Federal University of Minas Gerais Belo Horizonte Minas Gerais Brazil

Assessing software engineering course projects should evaluate the achievement of proposed goals, as well as the compliance with mandated standards and processes. This might require the examination of a significant volume of materials, following a consistent, repetitive and effective procedure, even for small projects. Quality assurance must be performed according to similar requirements. This paper discusses the use of quality audits, a comprehensive quality assurance procedure, as a tool for the assessment of course projects.

关键词： software quality Quality assurance Appraisal Automatic testing software engineering Feedback System testing software standards Inspection software testing

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TinyBee: Mobile-Agent-Based Data Gathering System in Wireless Sensor Networks

TinyBee: Mobile-Agent-Based Data Gathering System in Wireles...

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International Conference on Networking, Architecture, and Storage (NAS)

作者： Kaoru Ota Mianxiong Dong Xiaolin Li School of Computer Science and Engineering University of Aizu Fukushima Japan Scalable Software Systems Laboratory Computer Science Department Oklahoma State University Stillwater OK USA

This paper proposes a mobile-agent-based data gathering system (called TinyBee) in wireless sensor networks. Most existing mobile-agent-based systems consider only static sinks/servers. In this paper, we consider both mobile servers and lightweight mobile agents. We aim to design a data gathering system using a special kind of mobile agent called TinyBee to collect data all over a network. TinyBee migrates from node to node after being dispatched from a mobile server in order to collect data so that physical movement of mobile servers is greatly reduced. Mobile-agent-based approaches outperform traditional client/server paradigms in terms of execution time and power consumption. Extensive simulation results demonstrate that our proposed schemes achieve significant performance gains.

关键词： Wireless sensor networks Network servers Mobile agents computer networks computer science Energy consumption Routing Sensor systems computer architecture Data engineering

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A Contextual Guidance Approach to software Security

A Contextual Guidance Approach to Software Security

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IEEE Annual International computer software and Applications Conference (COMPSAC)

作者： Philipp Schugerl David Walsh Juergen Rilling Philippe Charland Department of Computer Science and Software Engineering Concordia University Montreal Canada System of Systems Section Defence Research and Development Canada QUE Canada

ISBN: (纸本)9781424445257

With the ongoing trend towards the globalization of software systems and their development, components in these systems might not only work together, but may end up evolving independently from each other. Modern IDEs have started to incorporate support for these highly distributed environments, by adding new collaborative features. As a result, assessing and controlling system quality (e.g. security concerns) during system evolution in these highly distributed systems become a major challenge. In this research, we introduce a unified ontological representation that integrates best security practices in a context-aware tool implementation. As part of our approach, we integrate information from traditional static source code analysis with semantic rich structural information in a unified ontological representation. We illustrate through several use cases how our approach can support the evolvability of software systems from a security quality perspective.

关键词： software systems Information security Ontologies Globalization Collaborative work Control systems Programming Protection computer applications Application software

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Beyond generated software documentation — A web 2.0 perspective

Beyond generated software documentation — A web 2.0 perspec...

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International Conference on software Maintenance (ICSM)

作者： Philipp Schugerl Juergen Rilling Philippe Charland Department of Computer Science and Software Engineering Concordia University Montreal Canada System of Systems Section Defence Research and Development Canada QUE Canada

Over the last decades, software engineering processes have constantly evolved to reflect cultural, social, technological, and organizational changes, which are often a direct result of the Internet. The introduction of the Web 2.0 resulted in further changes creating an interactive, community driven platform. However, these ongoing changes have yet to be reflected in the way we document software systems. Documentation generators, like Doxygen and its derivatives (Javadoc, Natural Docs, etc.) have become the de-facto industry standards for creating external technical software documentation from source code. However, the inter-woven representation of source code and documentation within a source code editor limits the ability of these approaches to provide rich media, internationalization, and interactive content. In this paper, we combine the functionality of a Web browser with a source code editor to provide source code documentation with rich media content. The paper presents our fully functional implementation of the editor within the Eclipse framework.

关键词： Documentation software engineering Cultural differences Global communication Internet software systems Java computer industry Code standards software standards

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