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IEEE Region 10 International Conference TENCON

作者： Junpei Anno Leonard Barolli Fatos Xhafa Arjan Durresi Department of Information and Communication Engineering Fukuoka Institute of Technology Fukuoka Japan Department of Languages and Informatics Systems Polytechnic University of Catalonia Spain Department of Computer Science Louisiana State University USA

Sensor networks supported by recent technological advances in low power wireless communications along with silicon integration of various functionalities are emerging as a critically important computer class that enable novel and low cost applications. There are many fundamental problems that sensor networks research will have to address in order to ensure a reasonable degree of cost and system quality. Cluster formation and cluster head selection are important problems in sensor network applications and can drastically affect the network's communication energy dissipation. However, selecting of the cluster head is not easy in different environments which may have different characteristics. In this paper, in order to deal with this problem we propose a power reduction algorithm for sensor networks based on fuzzy logic. We evaluate the proposed method by simulations and show that proposed system makes a good selection of the cluster head.

关键词： Wireless sensor networks Fuzzy logic Application software Sensor phenomena and characterization Wireless communication Silicon computer networks Cost function Sensor systems Energy dissipation

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software Visualization - A Process Perspective

Software Visualization - A Process Perspective

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IEEE International Workshop on Visualizing software for Understanding and Analysis (VISSOFT)

作者： Juergen Rilling Wen Jun Meng Fuzhi Chen Philippe Charland Department of Computer Science and Software Engineering Concordia University Montreal Canada System of Systems Section Defence Research and Development Canada Val-Belair Canada

software visualization is one of the enabling techniques to provide support during software maintenance activities. software maintenance is a multidimensional problem domain which involves the integration, abstraction and analysis of different knowledge resources and artifacts. Maintainers are typically left with no guidance on how these existing artifacts, tools and knowledge should be utilized to complete a particular task. In this research, we present a novel visualization approach that integrates these artifacts in the software maintenance process chain.

关键词： software maintenance Context modeling Data visualization software tools Ontologies Context awareness Knowledge representation computer science software engineering Research and development

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i2MAP: an incremental and iterative modeling and analysis process 07

i2MAP: an incremental and iterative modeling and analysis pr...

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Proceedings of the 10th international conference on Model Driven engineering languages and systems

作者： Sascha Konrad Heather J. Goldsby Betty H. C. Cheng Siemens Corporate Research Inc. Princeton NJ Software Engineering and Network Systems Laboratory Department of Computer Science and Engineering Michigan State University East Lansing Michigan

ISBN: (纸本)9783540752080

Detecting errors early within the development process for an embedded system assists a developer in avoiding excessive error correction costs and minimizing catastrophic losses resulting from failures in deployed systems. Towards that end, this paper presents i2MAP, an iterative and incremental goal-driven process for constructing an analysis-level UML model of an embedded system. The UML model is formally analyzed for adherence to the behavioral properties captured in a companion goal model. The process uses goal modeling to capture the requirements of the system, and uses UML to capture analysis-level structural and behavioral information. Both types of i2MAP models can be used to drive a rigorous approach to model-driven development of embedded systems. In this paper, we illustrate the i2MAP process and the accompanying tool suite in the development of an embedded system model for an adaptive light control system.

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Editorial preface

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International Journal of Information Technology and Web engineering 2007年第2期2卷 i-iii页

作者： Alkhatib, Ghazi Rine, David Department of Software Engineering College of Computer Science and Information Technology Applied Science University Amman Jordan Department of Computer Science School of Information Technology and Engineering George Mason University Fairfax VA United States College of Information Systems Zayed University Dubai United Arab Emirates

No abstract available

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Design of a distributed mixed reality system for construction simulation

Design of a distributed mixed reality system for constructio...

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2007 ASCE International Workshop on Computing in Civil engineering

作者： Wang, Hui Hammad, Amin Mudur, Sudhir P. Department of Computer Science and Software Engineering Concordia University 1455 De Maisonneuve Blvd. West Montreal QC H3G 1M8 Canada Concordia Institute for Information Systems Engineering Concordia University 1515 Ste-Catherine Street West Montreal QC H3G 2W1 Canada

ISBN: (纸本)0784409374

This paper describes the design of an outdoor Distributed Mixed Reality (DMR) system to support multi-user interaction of multi-users and virtual object manipulations in a construction simulation. The proposed DMR system is based on an interactive animation system of operating virtual cranes and extends previous work in a significant manner by considering engineering constraints. Our design integrates a Head-Mounted Display, a GPS receiver, a 3D motion sensor, and a portable computer to carry out a construction simulation which can be run in the outdoors. We describe and evaluate the system design challenges and possible solutions for simulating multi-user collaborative construction activities within the DMR environment. Several issues related to tracking and registration, modeling, user interaction, and mobile networking are discussed. The proposed system prototype is demonstrated using a case study which simulates the deck rehabilitation project of a bridge. Using this system, two users can collaborate to replace a section of the bridge deck by operating two virtual cranes and communicating with each other. © 2007 American Society of Civil Engineers.

关键词： Microcomputers

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Efficient Algorithms for Mining Closed Multidimensional Sequential Patterns

Efficient Algorithms for Mining Closed Multidimensional Sequ...

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International Conference on Fuzzy systems and Knowledge Discovery (FSKD)

作者： Veera Boonjing Panida Songram Software Systems Engineering Laboratory Department of Mathematics and Computer Science Faculty of Science King Mongkut''s Institute of Technology Ladkrabang Bangkok Thailand Department of Computer Science Faculty of Informatics Mahasarakham University Mahasarakham Thailand

A combination of closed sequential pattern mining and closed itemset pattern mining was proposed to mine closed multidimensional sequential patterns. There are two ways for this combination; (1) mining closed itemset patterns from multidimensional information followed by mining closed sequential patterns from sequences associated with closed itemset patterns, and (2) mining closed sequential patterns from sequences followed by mining closed itemset patterns from multidimensional information associated with closed sequential patterns. In the first way the major cost is mining all sequences associated with closed itemset patterns. A similar problem occurs with the second way, the major cost is mining all multidimensional information associated with closed sequential patterns. Therefore, this paper proposes two new combinations that don't need to mine all sequences in the first combination, and all multidimensional information in the second combination. Both combinations can be effected by exploiting two concepts. In the first combination, any closed sequential patterns associated with a closed itemset patten I can be found from a set of closed sequential patterns associated with a closed itemset pattern I' if I sup I'. In the second combination, any closed itemset patterns associated with a closed sequential pattern s can be found from a set of closed sequential patterns associated with a closed itemset pattern s' if s sup s'.

关键词： Multidimensional systems Data mining Itemsets Costs computer science software algorithms software systems systems engineering and theory Laboratories Mathematics

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Support Vector Machines applied to automated categorization of facial expressions

Support Vector Machines applied to automated categorization ...

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3rd Indian International Conference on Artificial Intelligence, IICAI 2007

作者： Md. Sohail, Abu Sayeed Bhattacharya, Prabir Department of Computer Science and Software Engineering Concordia University 1455 de Maisonneuve Blvd. West Montreal QC H3G 1M8 Canada Concordia Institute for Information Systems Engineering Concordia University 1515 St. Catherine West Montreal QC H3G 2W1 Canada

ISBN: (纸本)9780972741224

This paper describes a fully automated technique for detection and categorization of the seven basic facial expressions using Support Vector Machines (SVM). Facial expressions are communicated by subtle changes in one or more discrete features such as tightening the lips, raising the eyebrows, opening and closing of eyes or certain combinations of them, which can be identified through monitoring the changes in muscles movements (Action Units), located near about the regions of mouth, eyes and eyebrows. An analytic representation of face with fifteen feature points has been used that represent and identify the principle muscle actions as well as provide measurements of the discrete features responsible for each of the seven basic human emotions. Detection of these fifteen points of interest from the regions of eyes, eyebrows nose and mouth have been performed applying a standard image processing based multi-detector approach for facial feature point localization. The feature vector composed of fifteen features is then obtained by calculating the degree of displacement of five different pairs of points, and measuring the deviations of ten points from a non-changeable rigid point. Finally, obtained feature sets are used to train a SVM classifier so that it can categorize facial expressions when given to it in the form of a feature set. The developed automated facial expressions categorization system has been tested extensively on two publicly available facial expression databases and 91.30% and 84.07% of average successful categorization rate have been achieved. Copyright © 2007 IICAI.

关键词： Support vector machines

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A SLA-Oriented Management of Containers for Hosting Stateful Web Services

A SLA-Oriented Management of Containers for Hosting Stateful...

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IEEE International Conference on e-Science and Grid Computing

作者： Christoph Reich Kris Bubendorfer Matthias Banholzer Rajkumar Buyya Department of Computer Science Hochschule Furtwangen University Germany School of Mathematics Statistics and Computer Science Victoria University of Wellington New Zealand Grid Computing and Distributed Systems (GRIDS) Laboratory Department of Computer Science and Software Engineering University of Melbourne Australia

Service-oriented architectures provide integration of interoperability for independent and loosely coupled services. Web services and the associated new standards such as WSRF are frequently used to realise such service-oriented architectures. In such systems, autonomic principles of self-configuration, self-optimisation, self-healing and self- adapting are desirable to ease management and improve robustness. In this paper we focus on the extension of the self management and autonomic behaviour of a WSRF container connected by a structured P2P overlay network to monitor and rectify its QoS to satisfy its SIAs. The SLA plays an important role during two distinct phases in the life-cycle of a WSRF container. Firstly during service deployment when services are assigned to containers in such a way as to minimise the threat of SLA violations, and secondly during maintenance when violations are detected and services are migrated to other containers to preserve QoS. In addition, as the architecture has been designed and built using standardised modern technologies and with high levels of transparency, conventional Web services can be deployed with the addition of a SLA specification.

关键词： Containers Web services Service oriented architecture Quality of service computer science Monitoring Grid computing Conference management engineering management Mathematics

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Evaluation of Medical Image Watermarking with Tamper Detection and Recovery (AW-TDR)

Evaluation of Medical Image Watermarking with Tamper Detecti...

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29th Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBS 2007), vol.14

作者： Jasni M. Zain Abdul R. M. Fauzi Faculty of Computer Systems and Software Engineering Universiti Malaysia Pahang Kuantan Pahang Malaysia Department of Internal Medicine International Islamic University Malaysia Kuantan Pahang Malaysia

This paper will study and evaluate watermarking technique by Zain and Fauzi [1]. Recommendations will then be made to enhance the technique especially in the aspect of recovery or reconstruction rate for medical images. A proposal will also be made for a better distribution of watermark to minimize the distortion of the Region of Interest (ROI). The final proposal will enhance AW-TDR in three aspects;firstly the image quality in the ROI will be improved as the maximum change is only 2 bits in every 4 pixels, or embedding rate of 0.5bits/pixel. Secondly the recovery rate will also be better since the recovery bits are located outside the region of interest. The disadvantage in this is that, only manipulation done in the ROI will be detected. Thirdly the quality of the reconstructed image will be enhanced since the average of 2×2 pixels would be used to reconstruct the tampered image.

关键词： Biomedical imaging Watermarking Image reconstruction Authentication Parity check codes Proposals Pixel Image quality Error correction codes Degradation

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A Hybrid Case Based Reasoning System Using Fuzzy-Rough Sets and Formal Concept Analysis

A Hybrid Case Based Reasoning System Using Fuzzy-Rough Sets ...

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International Conference on Fuzzy systems and Knowledge Discovery (FSKD)

作者： Jirapond Tadrat Veera Boonjing Puntip Pattaraintakorn Software Systems Engineering Laboratory Department of Mathematics and Computer Science King Mongkut''s Institute of Technology Ladkrabang Bangkok Thailand Department of Mathematics and Computer Science King Mongkut''s Institute of Technology Ladkrabang Bangkok Thailand

In this paper, we propose a new hybrid case based reasoning system based on rough set theory, formal concept analysis and fuzzy sets. This system applies rough set theory to assure minimally sufficient cases in its case base. It uses formal concept analysis to reveal knowledge of attribute dependencies in terms of concept lattices. Numeric attributes are transformed to be suitable for formal concept analysis using fuzzy sets.

关键词： Fuzzy sets Mathematics computer science Set theory Lattices Information systems software systems systems engineering and theory Laboratories Rough sets

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